Calcium hydride supplier | CasNO.7789-78-8

Name
Calcium hydride
EINECS 232-189-2
CAS No. 7789-78-8
Article Data108
CAS DataBase
Density 1.9
Solubility Soluble in water and alcohol. Insoluble in benzene.
Melting Point 190 °C(lit.)
Formula CaH₂
Boiling Point 1484oC
Molecular Weight 42.0939
Flash Point
Transport Information UN 1404 4.3/PG 1
Appearance greyish-white solid
Safety 24/25-43-7/8-43A
Risk Codes 15
Molecular Structure
Hazard Symbols F
Synonyms Calcium hydride (CaH2);Calciumdihydride;
PSA 0.00000
LogP 0.22500

Synthetic route

: 1333-74-0
hydrogen

: 7440-70-2
calcium

: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
In melt High Pressure; Ca melted in vac. at 350°C for 5 h, filled with H2 (5 atm) at 400°C for 5 min, at 10 atm. at 480°; elem. anal.;	99.6%
In neat (no solvent) hydrogenation in a closed iron tube under pressure at temperatures between 650°C and 690°C;;	90%
In neat (no solvent) hydrogenation in a closed iron tube under pressure at temperatures between 650°C and 690°C;;	90%

: 7646-69-7
sodium hydride

: calcium chloride

A: 7789-78-8
calcium hydride

B: 7647-14-5
sodium chloride

Conditions

Conditions	Yield
In neat (no solvent) heating the mixture in H2-atmosphere to 420-600°C;; product-mixture;;
In neat (no solvent) heating the mixture in H2-atmosphere to 420-600°C;; product-mixture;;

...Expand

: 7440-70-2
calcium

A: 7789-78-8
calcium hydride

B: calcium nitride

Conditions

Conditions	Yield
With ammonia at red heat;
With NH3 at red heat;

: hydrogen

: 7440-70-2
calcium

: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
In neat (no solvent) on evacn. of system(metal, loaded (Ar) into reactor-autoclave of the hydrogenation apparatus)at 300-350°C (0.5-1h),cooling to room temp. and feeding hydrogen into reactor (from LaNi5 "accumulator") to give pressure of 2.8MPa, 150°C, 1h;; on gas-volumetric and chemical anal.; XRD (orthorhombic, lattice parameters); react. without an induction period and forming a clinker;;
In neat (no solvent) on evacn. of system(metal, loaded (Ar) into reactor-autoclave of the hydrogenation apparatus)at 300-350°C (0.5-1h),cooling to room temp. and feeding hydrogen into reactor (from LaNi5 "accumulator") to give pressure of 3.5MPa, 200°C, 1h;; on gas-volumetric and chemical anal.; XRD (orthorhombic, lattice parameters); react. is running without an induction period and forming of a clinker;;

Yield

In neat (no solvent) on evacn. of system(metal, loaded (Ar) into reactor-autoclave of the hydrogenation apparatus)at 300-350°C (0.5-1h),cooling to room temp. and feeding hydrogen into reactor (from LaNi5 "accumulator") to give pressure of 2.8MPa, 150°C, 1h;; on gas-volumetric and chemical anal.; XRD (orthorhombic, lattice parameters); react. without an induction period and forming a clinker;;

In neat (no solvent) on evacn. of system(metal, loaded (Ar) into reactor-autoclave of the hydrogenation apparatus)at 300-350°C (0.5-1h),cooling to room temp. and feeding hydrogen into reactor (from LaNi5 "accumulator") to give pressure of 3.5MPa, 200°C, 1h;; on gas-volumetric and chemical anal.; XRD (orthorhombic, lattice parameters); react. is running without an induction period and forming of a clinker;;

: calcium benzylate

: 7440-70-2
calcium

A: 7789-78-8
calcium hydride

B: 75-20-7
calcium carbide

Conditions

Conditions	Yield
at dark red heat;

...Expand

: 7440-70-2
calcium

: 75-04-7
ethylamine

A: 7789-78-8
calcium hydride

B: calcium nitride

C: 7440-44-0
pyrographite

Conditions

Conditions	Yield
byproducts: H2, N2; vigorous reaction at 400°C;
byproducts: H2, N2; vigorous reaction at 400°C;

...Expand

: hydrogen

: calcium chloride

A: 7789-78-8
calcium hydride

B: 7440-70-2
calcium

Conditions

Conditions	Yield
In neat (no solvent) byproducts: calcium oxide; bombarding solid CaCl2 deposited on substrate with atomar H for 60 mins in plasmochemical app. described by I. Sh. Normatov, N. Shermatov, and U. Mirsaidov, Fiz. Khim. Obrab. Mater., No. 3, 141-142 (1990);; formation of metallic layer, containing oxide phase of calcium; X-ray diffraction;;	A 0% B n/a

...Expand

: hydrogen

: calcium chloride

: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: HCl; bombarding periodically stirred CaCl2 (on substrate) with H for 120 mins in plasmochemical app. described by I. Sh. Normatov, N. Shermatov, and U. Mirsaidov, Fiz. Khim. Obrab. Mater., No. 3, 141-142 (1990); grinding; bombarding with H for 120 mins;; X-ray diffraction, DTA, IR spectroscopy;;

: 34557-54-5
methane

: calcium chloride

A: 7647-01-0
hydrogenchloride

B: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
In neat (no solvent) reaction of CaCl2 with H2 formed by dissociation of CH4;;

...Expand

: calcium nitride

: 1333-74-0
hydrogen

A: 7789-78-8
calcium hydride

B: 7664-41-7
ammonia

Conditions

Conditions	Yield
reversible react.;
at dark red heat and at temperatures above it;

...Expand

: calcium nitride

A: 7789-78-8
calcium hydride

B: 7664-41-7
ammonia

Conditions

Conditions	Yield
With hydrogen at red heat;
With hydrogen	A n/a B 0%
With H2	A n/a B 0%
With H2 at red heat;

: 74-85-1
ethene

: 7440-70-2
calcium

A: 7789-78-8
calcium hydride

B: 75-20-7
calcium carbide

C: 7440-44-0
pyrographite

Conditions

Conditions	Yield
In neat (no solvent) dark red heat; crust of CaC2, C and CaH2 inhibit reaction;;
In neat (no solvent) dark red heat; crust of CaC2, C and CaH2 inhibit reaction;;

...Expand

: calcium borohydride

A: boron

B: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: H2; 375-390°C; no isolation, monitoring by thermal anal.;

: 7732-18-5
water

: 1333-74-0
hydrogen

: calcium chloride

: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
platinum In neat (no solvent) at 600 - 700°C; acceleration by H2O vapor;;
nickel In neat (no solvent) at 600 - 700°C; acceleration by H2O vapor;;
iron In neat (no solvent) at 600 - 700°C; acceleration by H2O vapor;;

...Expand

: 1333-74-0
hydrogen

: calcium oxide

: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
With magnesium In neat (no solvent) calcination of a mixture of CaO and powdered Mg in an atmosphere of H2;;
With aluminium In neat (no solvent) byproducts: Al2O3;
With magnesium In neat (no solvent) byproducts: MgO; heating mixture at 400°C in vacuum and react. takes place at 550 - 650°C;;

: CaGa2.2

: 1333-74-0
hydrogen

A: 7789-78-8
calcium hydride

B: CaGa4

Conditions

Conditions	Yield
In neat (no solvent, solid phase) react. was carried out at hydrogen pressure around 50 bar at temp. between 170 and 200°C;

...Expand

: 7727-37-9
nitrogen

: 75-20-7
calcium carbide

A: 7789-78-8
calcium hydride

B: calcium nitride

C: 156-62-7
calcium cyanamide

D: 7440-44-0
pyrographite

Conditions

Conditions	Yield
In neat (no solvent)

...Expand

: calcium nitride

: 7727-37-9
nitrogen

: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
With hydrogen In neat (no solvent) formation at approx. 500-1000°C;;

: 7440-70-2
calcium

: calcium chloride

A: calcium chloride

B: 7789-78-8
calcium hydride

C: calcium oxide

Conditions

Conditions	Yield
In neat (no solvent) smelting together metallic Ca and CaCl2 in vac., in H2- or CH4-stream or in Ar-atmosphere forms no CaCl; CaO and CaH2 are formed by reaction of Ca with H2O;;	A 0% B n/a C n/a
In neat (no solvent) smelting together metallic Ca and CaCl2 in vac., in H2- or CH4-stream or in Ar-atmosphere forms no CaCl; CaO and CaH2 are formed by reaction of Ca with H2O;;	A 0% B n/a C n/a

...Expand

: 7440-70-2
calcium

: 74-86-2
acetylene

A: 7789-78-8
calcium hydride

B: 75-20-7
calcium carbide

C: 7440-44-0
pyrographite

Conditions

Conditions	Yield
In neat (no solvent) dark red heat; crust of CaC2, C and CaH2 inhibit reaction;;
In neat (no solvent) dark red heat; crust of CaC2, C and CaH2 inhibit reaction;;

...Expand

: 34557-54-5
methane

: 7440-70-2
calcium

A: 7789-78-8
calcium hydride

B: 75-20-7
calcium carbide

C: 7440-44-0
pyrographite

Conditions

Conditions	Yield
In neat (no solvent) dark red heat; crust of CaC2, C and CaH2 inhibit reaction;;
In neat (no solvent) dark red heat; crust of CaC2, C and CaH2 inhibit reaction;;

...Expand

: 7664-41-7
ammonia

: 7440-70-2
calcium

A: 7789-78-8
calcium hydride

B: calcium nitride

Conditions

Conditions	Yield
In neat (no solvent) Ca form in a NH3-stream at red a mixture of Ca3N2 and CaH2;;
In neat (no solvent) Ca form in a NH3-stream at red a mixture of Ca3N2 and CaH2;;

...Expand

: CaNi3H3

A: 7789-78-8
calcium hydride

B: 7440-02-0
nickel

Conditions

Conditions	Yield
In neat (no solvent) heated up to 773 K; XRD;

: 1333-74-0
hydrogen

: calcium chloride

: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
With pyrographite In neat (no solvent) at 800 - 900°C; acceleration C; presence of Zn;;
With pyrographite In neat (no solvent) at 1200°C; acceleration by C; in presence of NH3;;
With pyrographite In neat (no solvent) at 900°C; acceleration by C; presence of NaCl;;

: 12133-31-2
calcium hexammine

: 1333-74-0
hydrogen

: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
In neat (no solvent) Kinetics; decomposition of Ca(NH3)6 to active Ca; different pressures and temps.;;
In neat (no solvent) Kinetics; decomposition of Ca(NH3)6 to active Ca; different pressures and temps.;;

: calcium(II) ion

: 1333-74-0
hydrogen

: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
In not given react. with Ca-salts of phenols at ambient temp. and 200 at;;

: calcium nitride

: 1333-74-0
hydrogen

A: 7789-78-8
calcium hydride

B: calcium imide

Conditions

Conditions	Yield
In neat (no solvent) ball milled at room temp. for 20 h under 1 MPa of H2; XRD, IR;

...Expand

: 1333-74-0
hydrogen

: calcium carbonate

: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
In neat (no solvent) Electric Arc;
In neat (no solvent) Electric Arc;

: CaGa2

: 1333-74-0
hydrogen

A: 7789-78-8
calcium hydride

B: CaGa4

Conditions

Conditions	Yield
In neat (no solvent, solid phase) High Pressure; react. was carried out at hydrogen pressure around 50 bar at temp. between 170 and 200°C;

...Expand

: calcium chloride hexahydrate

: 7789-78-8
calcium hydride

Conditions

Conditions	Yield
In ethanol draining of CaCl2*6H2O at 10°C with alcohol under formation of aq. alcohol-solution with CaH2;;

: 7789-78-8
calcium hydride

: magnesium hydride

: potassium metaborate

: 7646-69-7
sodium hydride

A: potassium borohydride

B: magnesium oxide

Conditions

Conditions	Yield
In neat (no solvent, solid phase) ball milled at room temp., 120 min; extd. (ethylenediamine) under Ar; filtered; ethylenediamine evapd. at room temp. under 0.05 MPa; XRD;	A 100% B n/a

...Expand

: aluminium hydride

: 16853-85-3
lithium aluminium tetrahydride

: 7789-78-8
calcium hydride

: calcium tetrahydroaluminate

Conditions

Conditions	Yield
With (C2H5)2O In diethyl ether a mixt. of AlH3, CaH2 and LiAlH4 in Et2O is stirred at 34°C for 5.0 h; flakes are sepd. from soln. and unreacted CaH2 is decanted, flakes are washed with ether and dried in vac. at room temp.;	100%
In tetrahydrofuran a mixt. of AlH3, CaH2 and LiAlH4 in THF is stirred at 30°C for 5.0 h; flakes are sepd. from soln. and unreacted CaH2 is decanted, flakes are washed with ether and dried in vac. at room temp.;	0%

...Expand

: aluminium hydride

: 7789-78-8
calcium hydride

: calcium tetrahydroaluminate

Conditions

Conditions	Yield
With LiAlH4 In diethyl ether; toluene a mixt. of AlH3, CaH2 and LiAlH4 in ether/toluene (1:1) is stirred at 52°C for 3.0 h; flakes are sepd. from soln. and unreacted CaH2 is decanted, flakes are dried in vac. at room temp.;	100%
With LiBH4 In diethyl ether; toluene a mixt. of AlH3, CaH2 and LiBH4 in ether/toluene (1:1) is stirred at 50°C for 2.0 h; flakes are sepd. from soln. and unreacted CaH2 is decanted, flakes are dried in vac. at room temp.;	100%
With LiBH4 In diethyl ether; toluene a mixt. of AlH3, CaH2 and LiBH4 in ether/toluene (1:1) is stirred at 52°C for 5.0 h; flakes are sepd. from soln. and unreacted CaH2 is decanted, flakes are dried in vac. at room temp.;	100%

: aluminium hydride

: 16853-85-3
lithium aluminium tetrahydride

: 7789-78-8
calcium hydride

: calcium tetrahydroaluminte*(LiAlH4)0.5*(ether)0.7

Conditions

Conditions	Yield
With (C2H5)2O In diethyl ether a mixt. of AlH3, CaH2 and LiAlH4 in Et2O is stirred at 34°C for 3.0 h; flakes are sepd. from soln. and unreacted CaH2 is decanted, flakes are washed with ether and dried in vac. at room temp., elem. anal.;	100%
With (C2H5)2O In diethyl ether a mixt. of AlH3, CaH2 and LiAlH4 in Et2O is stirred at 34°C for 5.0 h; flakes are sepd. from soln. and unreacted CaH2 is decanted, flakes are washed with ether and dried in vac. at room temp., elem. anal.;	100%
With (C2H5)2O In diethyl ether a mixt. of AlH3, CaH2 and LiAlH4 in Et2O is stirred at 25°C for 7.0 h; flakes are sepd. from soln. and unreacted CaH2 is decanted, flakes are washed with ether and dried in vac. at room temp., elem. anal.;	95%
With (C2H5)2O In diethyl ether a mixt. of AlH3, CaH2 and LiAlH4 in Et2O is stirred at 33°C for 5.0 h; flakes are sepd. from soln. and unreacted CaH2 is decanted, flakes are washed with ether and dried in vac. at room temp., elem. anal.;	70%

...Expand

: 7440-56-4
germanium

: 7789-78-8
calcium hydride

: Ca5Ge3H(x)

Conditions

Conditions	Yield
In neat (no solvent, solid phase) placing of CaH2 and Ge in welded Ta containers, heating within evacuated, well-flamed, sealed silica jacket at 1150°C for 6 h, cooling to650°C with rate of 10-12°C/h;	100%

: 7789-78-8
calcium hydride

: 359641-96-6
(2-((2,6-diisopropylphenyl)amino)-4-((2,6-diisopropylphenyl)imino)pent-2-ene)ZnCl

: 1174669-67-0
({2,6-iPr2H3C6N(CH3)C}2CH)ZnH

Conditions

Conditions	Yield
In tetrahydrofuran byproducts: CaCl2; 0.5 CaH2;	99%

: 7789-78-8
calcium hydride

: 7732-18-5
water

: 1333-74-0
hydrogen

Conditions

Conditions	Yield
With aluminium at 75℃; for 15h; Catalytic behavior; Kinetics; Concentration; Temperature; Milling;	97.8%

: 109-99-9
tetrahydrofuran

: 10043-11-5
ammonia borane complex

: 7789-78-8
calcium hydride

A: calcium amidotrihydroborate

B: 1333-74-0
hydrogen

Conditions

Conditions	Yield
In tetrahydrofuran soln. NH3BH3 in THF was added to suspn. CaH2 in THF, mixt. was stirred overnight, solvent was removed in vac. at room temp. overnight;	A 96% B n/a

...Expand

: 7789-78-8
calcium hydride

: 7440-21-3
silicon

: Ca5Si3H(x)

Conditions

Conditions	Yield
In neat (no solvent, solid phase) placing of CaH2 and Si in welded Ta containers, heating within evacuated, well-flamed, sealed silica jacket at 1150°C for 6 h, cooling to650°C with rate of 10-12°C/h;	95%

: 7789-78-8
calcium hydride

: 1225383-03-8
[(C(C(NiPr)2))(ZnCl)4]

: 1254831-54-3
[(C(C(NiPr)2))(ZnH)4]

Conditions

Conditions	Yield
In tetrahydrofuran (inert atm.); stirring suspn. of zinc compd. and CaH2 in THF at 0°C for 3 d; filtration, keeping at -30°C for 24 h, isolation of crystals, elem. anal.;	91%

: 7789-78-8
calcium hydride

: 7783-61-1
silicon tetrafluoride

: 7440-21-3
monosilane

Conditions

Conditions	Yield
With hydrogen In neat (no solvent) in flow reactor at 180°C; the diluent used was H2;	90%
In neat (no solvent) Kinetics; byproducts: CaF2; mech. activated in rotating flow-through reactor; rotation frequency 100-150 rpm, CaF2 heated at temp. of 180-190°C, SiF4+H2 (1/1 v/v) flow through; gaseous products frozen out with liq. N2; detd. by gas-chromy.;

: 7789-78-8
calcium hydride

: 62566-70-5
silicon tetrafluoride, Si-28

: 14276-58-5
silane, Si-28

Conditions

Conditions	Yield
In neat (no solvent) byproducts: CaF2; at 200°C;	90%

: 7789-78-8
calcium hydride

: 7783-80-4
tellurium hexafluoride

: 14797-71-8
18O-labeled water

A: 114595-23-2
pentafluorotellurate(VI)

B: 543-54-4
pyridinium hydrogen sulfate

Conditions

Conditions	Yield
With H2SO4 In pyridine byproducts: H2, CaF2; Sonication; O2 and H2O excluded: H2(18)O added to CaH2 in pyridine, H2 evolution, reactn. mixt. stirred and sonicated (3d, room temp.), degassed, frozen (-196 ° C), TeF6 added (vac. transfer), heated and stirred (45 ° C, 12h), caution: TeF6-pressure!; pyridine and TeF6 removed (vac.), {pyH(1+)}{(18)OTeF5} extracted into warm CH2Cl2, CH2Cl2 removed (vac., white residue), (19)F NMR, concd. H2SO4 added, vac. distn., (19)F NMR;	A 88% B n/a

Yield

With H2SO4 In pyridine byproducts: H2, CaF2; Sonication; O2 and H2O excluded: H2(18)O added to CaH2 in pyridine, H2 evolution, reactn. mixt. stirred and sonicated (3d, room temp.), degassed, frozen (-196 ° C), TeF6 added (vac. transfer), heated and stirred (45 ° C, 12h), caution: TeF6-pressure!; pyridine and TeF6 removed (vac.), {pyH(1+)}{(18)OTeF5} extracted into warm CH2Cl2, CH2Cl2 removed (vac., white residue), (19)F NMR, concd. H2SO4 added, vac. distn., (19)F NMR;

A 88%
B n/a

...Expand

: 109-99-9
tetrahydrofuran

: 7789-78-8
calcium hydride

: trimethylammonium carba-closo-undecahydrododecaborate

: 2CH12B11(1-)*C24H48CaO6(2+)

Conditions

Conditions	Yield
for 25h;	86%

...Expand

: 7789-78-8
calcium hydride

: 1722-26-5
triethylamine-borane

: calcium borohydride

Conditions

Conditions	Yield
elem. anal.;	85%

: aluminium hydride

: lithium borohydride

: 7789-78-8
calcium hydride

: calcium tetrahydroaluminate*lithium tetrahydroborate*(diethylether)0.3

Conditions

Conditions	Yield
With (C2H5)2O In diethyl ether a mixt. of AlH3, CaH2 and LiBH4 in Et2O is stirred at 20°C for 5.0 h; flakes are sepd. from soln. and unreacted CaH2 is decanted, flakes are dried in vac. at room temp.;	83%
With (C2H5)2O In diethyl ether a mixt. of AlH3, CaH2 and LiBH4 in Et2O is stirred at 22°C for 7.0 h; flakes are sepd. from soln. and unreacted CaH2 is decanted, flakes are dried in vac. at room temp.;	75%

...Expand

: 7789-78-8
calcium hydride

: 7727-37-9
nitrogen

: calcium imide

Conditions

Conditions	Yield
With hydrogen In neat (no solvent) formation at passing a mixture of H2 and N2 over CaH2 at 730-750°C after 20 hours;;	82%
With H2 In neat (no solvent) formation at passing a mixture of H2 and N2 over CaH2 at 730-750°C after 20 hours;;	82%
In neat (no solvent) formation in N2-stream at 700-800.degree;;
In neat (no solvent) formation in N2-stream at 700-800.degree;;

: 7789-78-8
calcium hydride

: 2160-93-2
N-tert-butyldiethanolamine

: 7705-08-0
iron(III) chloride

: 7647-14-5
sodium chloride

: Na3(iron(III)9(tBu-N-diethanolamine)8Cl4O6(CaCl)2)

Conditions

Conditions	Yield
In tetrahydrofuran XRD;	70%

...Expand

: 7789-78-8
calcium hydride

: 7439-93-2
lithium

: 7440-44-0
pyrographite

A: 2Ca(2+)*Li(1+)*C3(4-)*H(1-)=Ca2LiC3H

B: 75-20-7
calcium carbide

Conditions

Conditions	Yield
In further solvent(s) acetylene carbon black reacted with CaCH2 in Ca/Li flux; sealed ampules heated to 1323 K in 2 h and kept at this temp. for 2 h; cooled to 1073 K in 24 h, cooled to 773 K in 108 h, centrifuged; elem. anal.;	A 70% B n/a

...Expand

: 67-56-1
methanol

: 7789-78-8
calcium hydride

: 879089-16-4, 155065-88-6
[Cu2(OAc)4(H2O)2]

: 144936-89-0
1,1'-(pyridine-2,6-diyl)bis(4,4-dimethylpentane-1,3-dione)

: [Cu2(C5H3N(C(O)CHC(O)C(CH3)3)2)2(CH3OH)2]*Ca(2+)*2CH3COO(1-)*2CH3OH=[C40H54N2O10Cu2]Ca(CH3COO)2*2CH3OH

Conditions

Conditions	Yield
In methanol under N2; tetraketone added to suspn. of CaH2 in MeOH; mixt. stirred at 20°C for 1 h; Cu(II) acetate monohydrate added; mixt. stirred at 20°C for 16 h; suspn. filtered; solvent removed; dried under vac.; crystn. by vapor diffusion of Et2O in MeOH soln.;	65%

...Expand

: 7789-78-8
calcium hydride

: calcium hexaboride

: 1333-74-0
hydrogen

: calcium borohydride

Conditions

Conditions	Yield
With catalyst: TiCl3/Pd In neat (no solvent, solid phase) High Pressure; mixt. of CaB6, CaH2 and catalyst TiCl3/Pd ball milled for 30 min, pelletized under Ar in glove box and then placed in autoclave; H2 pressure 350bar; autoclave heated up to 400-440°C, pressure adjusted to 700 bar and kept for 48 h; XRD;	60%
ruthenium(III)chloride In neat (no solvent, solid phase) High Pressure; mixt. of CaB6, CaH2 and catalyst RuCl3 ball milled for 30 min, pelletized under Ar in glove box and then placed in autoclave; H2 pressure 350 bar; autoclave heated up to 400-440°C, pressure adjusted to 700 barand kept for 48 h; XRD;
titanium(III) chloride In neat (no solvent, solid phase) High Pressure; mixt. of CaB6, CaH2 and catalyst TiCl3 ball milled for 30 min, pelletized under Ar in glove box and then placed in autoclave; H2 pressure 350 bar; autoclave heated up to 400-440°C, pressure adjusted to 700 barand kept for 48 h; XRD;
In neat (no solvent, solid phase) High Pressure; mixt. of CaB6 and CaH2 ball milled for 30 min, pelletized under Ar in glove box and then placed in autoclave; H2 pressure 350 bar; autoclave heated up to 400-440°C, pressure adjusted to 700 bar and kept for 48h; no react. without catalyst; XRD;	0%

...Expand

: 7789-78-8
calcium hydride

: 119455-79-7
{trans-Pt{C=C(CMe3)P(O)(CCCMe3)C=C(CMe3)(H)}(PET3)2(H2O)}{BF4}

: 119455-84-4
{trans-Pt{C=C(CMe3)P(OBF3)(CCCMe3)C=C(CMe3)(H)}{PEt3}2(H)}

: 119455-86-6
{trans-Pt{C=C(CMe3)P(O)(CCCMe3)C=C(CMe3)(H)}{PEt3}2(H)}

Conditions

Yield

With H2 In dichloromethane large molar excess of powd. CaH2 added to a soln. of Pt complex (N2), stirred (N2, room temp., 2 h), filtered (filtrate collected in flame-dried glass-ware), stream of H2 gas passed through soln. (2.5 h, -78°C); solvent removed (vac.), residue extd. with hexane and Et2O both twice, Et2O exts. evapd. (vac.), solid crystd. from CH2Cl2/hexane (-20°C); elem. anal. (*1H2O); BF3-free compd. isolated by concn. of the hexane exts. and cooling (-20°C);

A 55%
B 18%

...Expand

: 7440-56-4
germanium

: 7789-78-8
calcium hydride

: 7439-93-2
lithium

: 7440-70-2
calcium

A: LiCa7Ge3H3

B: LiCa11Ge3OH4

Conditions

Conditions	Yield
In neat (no solvent) (Ar), mixed with Li/Ca/Ge/CaH2 molar ratio 10:10:2:3 in steal crucible,sealed in silica tube, heated to1323 K in 2 h, kept for 2 h, cooled to 1073 K in 24 h, cooled to 773 K in 108 h; centrifuged, oped (under Ar), XRD;	A 50% B n/a

...Expand

: 7789-78-8
calcium hydride

: 119455-81-1
{trans-Pt{C=C(CMe3)P(O)(CCCMe3)C=C(CMe3)(H)}{P(n-Prop)3}2(H2O)}{BF4}

: 119455-85-5
{trans-Pt{C=C(CMe3)P(OBF3)(CCCMe3)C=C(CMe3)(H)}{P(n-Pr3)}2(H)}

Conditions

Conditions	Yield
With H2 In dichloromethane large molar excess of powd. CaH2 added to a soln. of Pt complex (N2), stirred (N2, room temp., 2 h), filtered (filtrate collected in flame-dried glass-ware), stream of H2 gas passed through soln. (2.5 h, -78°C); solvent removed (vac.), residue extd. with hexane and Et2O both twice, Et2O ext. evapd. (vac.), solid crystd. from CH2Cl2/hexane (-20°C); elem. anal. (*H2O);	42%

: 7440-74-6
indium

: 7789-78-8
calcium hydride

: calcium nitride

: 7440-70-2
calcium

: 7440-21-3
silicon

: Ca3SiN3H

Conditions

Conditions	Yield
With lithium at 1050℃; for 5h; Inert atmosphere; Glovebox; Sealed tube;	42%

...Expand

: boron trioxide

: 7789-78-8
calcium hydride

: calcium hexaboride

Conditions

Conditions	Yield
In neat (no solvent) fast reaction at 800°C;;
In neat (no solvent) fast reaction at 800°C;;

: boron trioxide

: sodium oxide

: 7789-78-8
calcium hydride

: 16940-66-2
sodium tetrahydroborate

Conditions

Conditions	Yield
In neat (no solvent) byproducts: CaO; react. in an autoclave under H2-pressure, 300-600°C, exothermic react. (formation of CaH2 from CaCl2 and H2 during the react. possible), addn. of SiO2 for absorption of CaO;;
In neat (no solvent) byproducts: CaO; react. in an autoclave under H2-pressure, 300-600°C, exothermic react. (formation of CaH2 from CaCl2 and H2 during the react. possible), addn. of SiO2 for absorption of CaO;;

...Expand

: chromium(III) oxide

: 7789-78-8
calcium hydride

: 7440-47-3
chromium

Conditions

Conditions	Yield
With hydrogen byproducts: CaO; Ca hydride decompd. to nascent H and Ca, redn. with nascent H, Ca reacts with O2 originating from moisture and CaO formes; opt. circumstance of redn. 470°C; sepn. Cr from CaO with dild. aq. HNO3;

: 7789-78-8
calcium hydride

: 7732-18-5
water

: calcium hydroxide

Conditions

Conditions	Yield
With mineral oil In tetrahydrofuran; water CaH2 dispersed in mixt. of surfactant, mineral oil, C7H8 and methanol; mixt. of THF and water added at 5°C for 5 h; detd. by TEM and SAXS;

Calcium hydride Chemical Properties

IUPAC Name: Calcium hydride
Molecular Formula: CaH₂
Molecular Weight: 42.093880 g/mol
Melting Point: 190 °C(lit.)
Density: 1.70 g/cm³
Sensitive: Moisture
EINECS: 232-189-2
Appearance: Greyish-white solid
Structure of Calcium hydride (CAS NO.7789-78-8):

Categories of Calcium hydride (CAS NO.7789-78-8): Inorganics;Adsorbents, Filter Aids and Drying Agents;Other Drying AgentsEssential Chemicals;Materials for Hydrogen Storage;Synthetic Reagents;Metal Hydrides

Calcium hydride Uses

Calcium hydride (CAS NO.7789-78-8) is widely used as a desiccant for basic solvents such as amines and pyridine. It is also used to pre-dry solvents prior to the use of a more reactive desiccant.

Calcium hydride Safety Profile

Hazard Codes:F
Risk Statements:15
15:Contact with water liberates extremely flammable gases
Safety Statements:24/25-43-7/8-43A
24/25:Avoid contact with skin and eyes
43:In case of fire, use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add - Never use water)
7/8:Keep container tightly closed and dry
43:In case of fire, use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add - Never use water)
Explosive reaction on heating with tetrahydrofuran. Mixtures with potassium chlorate and other metal oxohalogenates (e.g., chlorates; bromates; and perchlorates) are heat- and friction-sensitive explosives. Vigorous or incandescent reaction on heating with halogens (chlorine; bromine; or iodine); manganese dioxide; and silver halides (e.g., silver fluoride; silver iodide). See also CALCIUM COMPOUNDS and HYDRIDES.

Calcium hydride Specification

Calcium hydride (CAS NO.7789-78-8) is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product: If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
In addition, you should keep it away from sources of ignition. It should be stored in a tightly closed container.

Product Name

Calcium hydride

Synthetic route

Calcium hydride Chemical Properties

Calcium hydride Uses

Calcium hydride Safety Profile

Calcium hydride Specification

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