Borazine supplier | CasNO.6569-51-3

Name
Borazine
EINECS
CAS No. 6569-51-3
Article Data103
CAS DataBase
Density d40 0.824; d457 0.898
Solubility hydrolyzes, evolving boron hydrides [HAW93]
Melting Point -58°
Formula B3H6 N3
Boiling Point 55°C
Molecular Weight 80.5007
Flash Point
Transport Information
Appearance
Safety A powerful irritant to skin, eyes, and mucous membranes. May explode spontaneously when stored in the light. Reacts with water to form toxic and flammable boron hydrides. A dangerous fire hazard. When heated to decomposition it emits toxic fumes of NO_x. See also BORON COMPOUNDS.
Risk Codes 15-34
Molecular Structure
Hazard Symbols
Synonyms 1,3,5,2,4,6-Triazatriborine,hexahydro-; Borazine (B3H6N3); Borazole; Borazyne, cyclic trimer;Hexahydro-s-triazaborine; Triborinetriamine; Triboron nitride; s-Triazaborane
PSA 36.09000
LogP -2.44530

Synthetic route

: 16940-66-2
sodium tetrahydroborate

: 933-18-6
B,B',B''-trichloroborazine

: 6569-51-3
borazine

Conditions

Conditions	Yield
	92.6%
	92.6%
In diethylene glycol	46%

: 16940-66-2
sodium tetrahydroborate

: ammonium sulfate

: 6569-51-3
borazine

Conditions

Conditions	Yield
aluminium trichloride In further solvent(s) (N2), powder of (NH4)2SO4 treated with soln. of NaBH4 in tetraglyme, stirred for 6 h at 140°C catalized by AlCl3;	67%
In further solvent(s) byproducts: Na2SO4, H2; absence of air and moisture; heating in tetraglyme to 135°C (over 1 h), then 1 h at 135°C, continuous distn. off of borazine and H2 at 2-5 Torr; condensation in trap at liquid-N2 temp., fractional low-temp. distn. (collection at -78°C);	59.9%
In further solvent(s) byproducts: Na2SO4, H2; absence of air and moisture; stepwise addn. of solid mixt. of educt into tetraglyme at 135°C, heating to 135°C for 2 h; condensation in trap at liquid-N2 temp., fractional low-temp. distn. (collection at -78°C);	53.8%

: 10043-11-5
ammonia borane complex

: 6569-51-3
borazine

Conditions

Conditions	Yield
In further solvent(s) byproducts: H2; absence of air and moisture; slow addn. of solid H3NBH3 into tetraglymeat 140-160°C (over 3 h), distn. off of H2 and product (2-5 Torr); condensation in trap at liquid-N2 temp., fractional low-temp. distn. (collection at -78°C);	67%
With nickel at 80℃; under 30 Torr; for 6h; Inert atmosphere;	53%
In 1,2-dimethoxyethane

: lithium borohydride

: 933-18-6
B,B',B''-trichloroborazine

: 6569-51-3
borazine

Conditions

Conditions	Yield
	65%
	65%
In dibutyl ether under N2; exclusion of moisture (drybox); B-trichloroborazine was suspended in the dry solvent; soln. of LiBH4 was added to the slurry over 2 h; crude borazine was distilled into a dry-ice condenser; several line transfers; fractional distillation; identified by IR; (1)H-NMR; boiling point;;

: ammonia borane

: 6569-51-3
borazine

Conditions

Conditions	Yield
[Re(NO)(η(2)-H2)Br2(PiPr3)2] In 1,4-dioxane byproducts: H2; at 45°C for 24 h, or at 85°C for 1 h;	65%
chloro(1,5-cyclooctadiene)rhodium(I) dimer In further solvent(s) byproducts: H2; at 45°C for 72 h in tetraglime; NMR;	10%
chloro(1,5-cyclooctadiene)rhodium(I) dimer In diethylene glycol dimethyl ether byproducts: H2; at 45°C for 72 h; NMR;	10%

: 19287-45-7
diborane

: 6569-51-3
borazine

Conditions

Conditions	Yield
With ammonia byproducts: H2; quickly heating at 250-300°C;	47%
With NH3 byproducts: H2; quickly heating at 250-300°C;	47%
With ammonia byproducts: H2; heating at 200°C and 11 atm; 15 min;	41.5%

: B2H5NH2*NH3

: 6569-51-3
borazine

Conditions

Conditions	Yield
heating at 200°C 5 min;	45%
heating at 200°C 5 min;	45%
byproducts: H2; at 200°C 5 min;	>99

: lithium borohydride

: ammonium chloride

: 6569-51-3
borazine

Conditions

Conditions	Yield
	40%
	40%

: 13871-09-5
cyclotriborane

A: BNH1.7

B: 6569-51-3
borazine

Conditions

Conditions	Yield
In solid byproducts: H2; heated in Schlenk vessel up to 470 K; held at this temp. for 6 h before slowly cooled down; monitored by NMR spectroscopy;	A n/a B 40%

: B4H10*4NH3

: 6569-51-3
borazine

Conditions

Conditions	Yield
With ammonia heating at 200°C;	40%
With NH3 heating at 200°C;	40%
at 200°C in sealed tube;
at 200°C in sealed tube;

: B2H6*NH3*PH3

: 6569-51-3
borazine

Conditions

Conditions	Yield
quickly heating to 200°C;	30%
quickly heating to 200°C;	30%

: NH4(1+)*BH3*PH2(1-)*BH3=B2H6*PH3*NH3

: 6569-51-3
borazine

Conditions

Conditions	Yield
fast heating up to 200°C;	30%
fast heating up to 200°C;	30%

: ammonia borane

A: 13871-09-5
cyclotriborane

B: 6569-51-3
borazine

Conditions

Conditions	Yield
In diethylene glycol 30 min, 130°C; identified by 11B NMR spectroscopy;;	A 27% B n/a

: 16940-66-2
sodium tetrahydroborate

: ammonium chloride

: 6569-51-3
borazine

Conditions

Conditions	Yield
	23%
	23%

: 16940-66-2
sodium tetrahydroborate

: ammonium sulfate

A: 10043-11-5
ammonia borane complex

B: 75885-49-3
μ-aminodiborane

C: 13871-09-5
cyclotriborane

D: 6569-51-3
borazine

Conditions

Conditions	Yield
In further solvent(s) byproducts: H2; under Ar atm.; grinded (NH4)2SO4 and NaBH4 stirred in triglyme heated to120°C for 30 min, treated at this temp. until the cease of gases released; mixt. distd. several times under high vac., collected in liq. N2 traps, condensed at -78°C; detd. by XRD, NMR, mass-spectrometry;	A n/a B n/a C n/a D 18%

...Expand

: lithium borohydride

: 933-18-6
B,B',B''-trichloroborazine

A: 15061-65-1
B-monochloroborazine

B: 6569-51-3
borazine

Conditions

Conditions	Yield
Stage #1: B,B',B''-trichloroborazine With pyridine In diethyl ether at -78℃; for 0.0833333h; Inert atmosphere; Schlenk technique; Glovebox; Stage #2: lithium borohydride at 20℃; for 0.5h; Inert atmosphere; Schlenk technique; Glovebox;	A 17% B n/a

...Expand

: ammonium tetrafluoroborate

A: poly(boron amide imide)

B: 6569-51-3
borazine

Conditions

Conditions	Yield
byproducts: H2; decompn. at different temp. values;	A n/a B 15%
byproducts: H2; decompn. at different temp. values;	A n/a B 15%

: 16940-66-2
sodium tetrahydroborate

: 2644-70-4
hydrazine hydrochloride

: 6569-51-3
borazine

Conditions

Conditions	Yield
cobalt at 175 - 180°C, heating;
cobalt at 175 - 180°C, heating;

: B5H9*4NH3

: 6569-51-3
borazine

Conditions

Conditions	Yield
200°C;

: tetra-amminezinc tetrahydroborate

A: 108203-18-5
ammonia borane

B: 6569-51-3
borazine

C: 19287-45-7
diborane

Conditions

Conditions	Yield
In neat (no solvent) Kinetics; thermal decompn. (vac., 1 Pa, glass ampoule in stainless steel capsule, 120°C, 95 min); further products; mass spectrometry;

...Expand

: tetra-amminezinc tetrahydroborate

A: 108203-18-5
ammonia borane

B: 6569-51-3
borazine

Conditions

Conditions	Yield
In neat (no solvent) Kinetics; thermal decompn. (vac., 1 Pa, glass ampoule in stainless steel capsule, 47°C, 25 min or 60°C, 50 min); further products; mass spectrometry;

: 1838-13-7
dimethylamine borane

: n-propylamine borane complex

A: 6569-51-3
borazine

B: methylamine borane

Conditions

Conditions	Yield
byproducts: H2; 60-70°C, then 3 h, 85-90°C;
byproducts: H2; 60-70°C, then 3 h, 85-90°C;

...Expand

: 1838-13-7
dimethylamine borane

: 879631-61-5
isopropylamine borane complex

A: 6569-51-3
borazine

B: methylamine borane

Conditions

Conditions	Yield
byproducts: H2; 60-70°C, then 3 h, 85-90°C;
byproducts: H2; 60-70°C, then 3 h, 85-90°C;

...Expand

: 1838-13-7
dimethylamine borane

: methylamine borane

: 6569-51-3
borazine

Conditions

Conditions	Yield
byproducts: H2; 60-70°C, then 3 h at 85-90°C;
byproducts: H2; 60-70°C, then 3 h at 85-90°C;

: 19287-45-7
diborane

A: boron imide

B: 6569-51-3
borazine

Conditions

Conditions	Yield
With NH3 NH3:B2H6 mol ratio = 9:1;	A n/a B 0%
With NH3 heating with NH3 excess;

: 19287-45-7
diborane

A: 39046-41-8
aminodiborane

B: 6569-51-3
borazine

Conditions

Conditions	Yield
With NH3 with B2H6 excess;
With NH3 with B2H6 excess;

: 7664-41-7
ammonia

: 19287-45-7
diborane

: 6569-51-3
borazine

: 16853-85-3
lithium aluminium tetrahydride

: 933-18-6
B,B',B''-trichloroborazine

: 6569-51-3
borazine

Conditions

Conditions	Yield
In diethylene glycol
In diethylene glycol dimethyl ether

: 15973-91-8
B.B-Dimethyl-borazen

A: 6569-51-3
borazine

B: 7664-41-7
ammonia

Conditions

Conditions	Yield
With water
With H2O

: 74-85-1
ethene

: 6569-51-3
borazine

: 88916-94-3
2-ethylcyclotriborazine

Conditions

Conditions	Yield
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and ethylene (7.9:1 ratio) were condensed (-196°C) to acatalytic amt. Rh-complex, mixt. allowed to warm to room temp., initialyellow soln. turned reddish brown within min and became homogeneous, mixt. stirred 1 h; flask frozen on vacuum line (-196°C) and degassed, volatile material fractionated through a -78, -110 and -196°C trap series, product found in the -78°C trap;	100%

Yield

hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and ethylene (7.9:1 ratio) were condensed (-196°C) to acatalytic amt. Rh-complex, mixt. allowed to warm to room temp., initialyellow soln. turned reddish brown within min and became homogeneous, mixt. stirred 1 h; flask frozen on vacuum line (-196°C) and degassed, volatile material fractionated through a -78, -110 and -196°C trap series, product found in the -78°C trap;

100%

: 187737-37-7
propene

: 6569-51-3
borazine

: 121232-06-2
B-propylborazine

Conditions

Conditions	Yield
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and propylene (8.5 to 7.5 :1) reacted in the presence of a catalytic amt. Rh-complex at room temp. for 2 h; vacuum line fractionation of mixt. through a -63, -110 and -196°C trap series, product found in the -63°C trap;	98%

: 677-21-4
1,1,1-trifluoropropylene

: 6569-51-3
borazine

: 155862-04-7
2-(trifluoropropyl)borazine

Conditions

Conditions	Yield
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and the propene (ratio 8.4:1) reacted in the presence of a catalytic amt. Rh-complex at room temp. for 1 h; vacuum line fractionation of mixt. through a 0, -45, -110 and -196°C trap series, product found in the -45°C trap, elem. anal.;	98%

: 5505-72-6
1,3,5-trimethyl-1,3,5-trivinyl-1,3,5-trisila-2,4,6-triazacyclohexane

: 6569-51-3
borazine

polimer from 2,4,6-trimethyl-2,4,6-trivinylcyclotrisilazane and borazine: polimer from 2,4,6-trimethyl-2,4,6-trivinylcyclotrisilazane and borazine

Conditions

Conditions	Yield
In tetrahydrofuran at 0 - 2℃; for 35h;	95%

: 74-85-1
ethene

: 6569-51-3
borazine

: 7443-22-3
2,4,6-triethyl-borazine

Conditions

Conditions	Yield
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and excess ethylene (1:3 ratio) were condensed (-196°C)to a catalytic amt. Rh-complex, mixt. allowed to warm to room temp., mixt. stirred 2 h; flask frozen on vacuum line (-196°C) and degassed, volatile material fractionated through traps at -63 and -196°C, product found in the -63°C trap;	92%

: 106-98-9
1-butylene

: 6569-51-3
borazine

: 155862-03-6
2-butylborazine

Conditions

Conditions	Yield
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and 1-butene (ratio 5.8:1) reacted in the presence of a catalytic amt. Rh-complex at room temp. for 3 h; vacuum line fractionation of mixt. through a -45, -110 and -196°C trap series, product found in the -45°C trap, elem. anal.;	91%

: 677-21-4
1,1,1-trifluoropropylene

: 6569-51-3
borazine

A: 155862-04-7
2-(trifluoropropyl)borazine

B: 155862-05-8
2,4-bis-(trifluoropropyl)borazine

C: 155862-06-9
2,4,6-tris-(trifluoropropyl)borazine

Conditions

Conditions	Yield
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and excess of the propene (ratio 1:2.9) reacted in the presence of a catalytic amt. Rh-complex at room temp. for 16 h, resulting product was a solid with a moist appearance; vacuum line fractionation of mixt. through a -78 and -196°C traps, 2-substd. and 2,4-products found in the -78°C trap; extn. (CH2Cl2) of solid residue, evapn. (ac.), solid sublimed at 80°C (2,4,6-product), elem. anal.;	A 14% B 84% C n/a

Yield

hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and excess of the propene (ratio 1:2.9) reacted in the presence of a catalytic amt. Rh-complex at room temp. for 16 h, resulting product was a solid with a moist appearance; vacuum line fractionation of mixt. through a -78 and -196°C traps, 2-substd. and 2,4-products found in the -78°C trap; extn. (CH2Cl2) of solid residue, evapn. (ac.), solid sublimed at 80°C (2,4,6-product), elem. anal.;

A 14%
B 84%
C n/a

...Expand

: 6569-51-3
borazine

: 98-83-9
isopropenylbenzene

: 155862-08-1
2-phenyl-3-(2-borazinyl)propane

Conditions

Conditions	Yield
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and the styrene (ratio 4:1) reacted in the presence of a catalytic amt. Rh-complex at room temp. for 76 h; vacuum line fractionation of mixt. through a 0, -45 and -196°C trap series, product found in the 0°C trap;	74%

: 624-64-6
trans-2-Butene

: 6569-51-3
borazine

: 155862-03-6
2-butylborazine

Conditions

Conditions	Yield
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and trans-2-butene (ratio 6:1) reacted in the presence of a catalytic amt. Rh-complex at room temp. for 185 h; vacuum line fractionation of mixt. through a -45, -110 and -196°C trap series, product found in the -45°C trap;	72%

: 6569-51-3
borazine

: 74-86-2
acetylene

: 110272-04-3
poly(B-vinylborazine)

Conditions

Conditions	Yield
carbonylhydridetris(triphenylphosphine)rhodium(I) room temp.; 4 h;;	71.8%
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) RhH(CO9(PPh3)3 in a Fischer-Porter glass pressure vessel, evacuating, condensing B3N3H6 and C2H2 into the flask at -196°C, allowing to warm to room temp., 4 h; attaching to vac. line, freezing at -196°C, degassing, fractionating through a -30,-70,-116,-196 °C trap series;	71.8%
With catalyst: Ir(I)-compound In not given 55°C;

: 74-85-1
ethene

: 6569-51-3
borazine

A: 88916-94-3
2-ethylcyclotriborazine

B: 89123-50-2
B3H(C2H5)2(NH)3

C: 7443-22-3
2,4,6-triethyl-borazine

Conditions

Conditions	Yield
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and excess ethylene (1:3.5 ratio) were condensed (-196°C) to a catalytic amt. Rh-complex, mixt. allowed to warm to room temp., mixt. turned reddish brown within min, mixt. stirred 26 h; flask frozen on vacuum line (-196°C) and degassed, volatile material fractionated through traps at -78, -110 and -196°C, productsfound in the -78°C trap, identified by GC/MS;	A 65% B 29.5% C 5.5%

Yield

hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and excess ethylene (1:3.5 ratio) were condensed (-196°C) to a catalytic amt. Rh-complex, mixt. allowed to warm to room temp., mixt. turned reddish brown within min, mixt. stirred 26 h; flask frozen on vacuum line (-196°C) and degassed, volatile material fractionated through traps at -78, -110 and -196°C, productsfound in the -78°C trap, identified by GC/MS;

A 65%
B 29.5%
C 5.5%

...Expand

: 187737-37-7
propene

: 6569-51-3
borazine

A: 155862-02-5
B3H(C3H7)2(NH)3

B: 90723-42-5
(B-n-C3H7NH)3

Conditions

Conditions	Yield
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and excess propylene (1:3.3) reacted in the presence of a catalytic amt. Rh-complex at room temp. for 1 h; vacuum line fractionation of mixt. through a -63, -110 and -196°C trap series, products found in the -63°C trap, products sepd. by vacuum line fractionation with condensation in -30 and 0°C traps (2,4- respectively 2,4,6-product);	A 39.5% B 60.5%

Yield

hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and excess propylene (1:3.3) reacted in the presence of a catalytic amt. Rh-complex at room temp. for 1 h; vacuum line fractionation of mixt. through a -63, -110 and -196°C trap series, products found in the -63°C trap, products sepd. by vacuum line fractionation with condensation in -30 and 0°C traps (2,4- respectively 2,4,6-product);

A 39.5%
B 60.5%

...Expand

: 6569-51-3
borazine

: 10043-11-5
boron nitride

Conditions

Conditions	Yield
In neat (no solvent) pyrolysis under pressure (100 MPa) at temperatures between 250°C and 700°C (N2), elem.anal.;	60%
In neat (no solvent) High Pressure; borazine sealed under N2 in a gold capsule, pyrolyzed at 250-700°C, 25-100MPa, heating rate 10°C/min;
In neat (no solvent) preparation of BN layers by induction heating of borazol;
In neat (no solvent, gas phase) byproducts: H2; deposition on varius substrates;
N2-carrying gas, chemical vapor deposition (graphite substrate, 1300-1800°C, 100-10000 Pa); detd. by IR spectroscopy;

: 140-67-0
Estragole

: 6569-51-3
borazine

: 155862-09-2
1-(4-methoxyphenyl)-3-(2-borazinyl)propane

Conditions

Conditions	Yield
hydridocarbonyltris(triphenylphosphine)rhodium(I) In neat (no solvent) Kinetics; borazine and the anisole (ratio 10.5:1) reacted in the presence of a catalytic amt. Rh-complex at room temp. for 96.5 h; vacuum line fractionation of mixt. through a 0, -45 and -196°C trap series, product found in the 0°C trap;	57%

: 6569-51-3
borazine

: 100-01-6
4-nitro-aniline

: 3905-97-3
H2NB(NHC6H4-4-NO2)2

Conditions

Conditions	Yield
In diethylene glycol 3 h;	39%
In diethyl ether 3 h;	39%
In diethyl ether 3 h;	39%
In diethylene glycol dimethyl ether 3 h;	39%

: 187737-37-7
propene

: 6569-51-3
borazine

A: 110272-06-5
B-2-propenylborazine

B: 110272-05-4
B-trans(1-propenyl)borazine

C: 121232-06-2
B-propylborazine

Conditions

Conditions	Yield
palladium(II) bromide In neat (no solvent) stirring in vac., in a Fischer-Porter pressure reactor, room temp., 6 h; vac. line fractionation through a -65 °C trap, mixture of B-propyl- and B-propenylborazine, separation of the propenyl compds. by preparative GLC;	A n/a B n/a C 22%

...Expand

Borazine Chemical Properties

Borazine ,its CAS register number is 6569-51-3,it's called for 1,3,5,2,4,6-Triazatriborine, hexahydro- ; Borazole ; Borazyne, cyclic trimer ; Hexahydro-s-triazaborine ; s-Triazaborane ; s-Triazatriborine, hexahydro- ; Hexahydro-s-triazaborine ; 1,3,5,2,4,6-triazatriborinane ; CHEBI:33119 ; CID138768 ,and so on.

IUPAC Name: 1,3,5,2,4,6-triazatriborinane
CAS: 6569-51-3
Molecular Formula: B₃H₆N₃
Molecular Weight: 80.5
Molecular structure:
Storage temp.: below 5° C
H bond acceptors: 3
H bond donors: 3
Freely Rotating Bonds: 0
Enthalpy of Vaporization: 29.62 kJ/mol
Boiling Point: 53 °C at 760 mmHg
Vapour Pressure: 259 mmHg at 25°C

Borazine Uses

Borazine (CAS No.6569-51-3) can be used for organic synthesis.

Borazine Production

Borazine (CAS No.6569-51-3) can be synthesized by one-step reaction methods:
1. 3 B₂H₆ + 6 NH₃ → 2 B₃H₆N₃ + 12 H₂
2. 3 LiBH₄ + 3 NH₄Cl → B3H₆N₃ + 3 LiCl + 9 H₂

Borazine (CAS No.6569-51-3) also can be synthesized by two-step reaction method:
3 BCl₃ + 3 NH₄Cl → Cl₃B₃H₃N₃ + 9 HCl
2 Cl₃B₃H₃N₃ + 6 NaBH₄ → 2 B3H₆N₃ + 3 B₂H₆ + 6 NaCl

Borazine Safety Profile

A powerful irritant to skin, eyes, and mucous membranes. May explode spontaneously when stored in the light. Reacts with water to form toxic and flammable boron hydrides. A dangerous fire hazard. When heated to decomposition it emits toxic fumes of NO_x.

Risk Statements: 15-34 (R15:Contact with water liberates extremely flammable gases. R34:Causes burns.)
Safety Statements: 7-23-26-36-43 (S7:Keep container tightly closed. S23:Do not breathe vapour. S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36:Wear suitable protective clothing. S43:In case of fire use ... (there follows the type of fire-fighting equipment to be used.))
RIDADR: 1992
TSCA: No
HazardClass: 3.1
PackingGroup: II

Borazine Specification

Removal in wastewater treatment of Borazine (CAS No.6569-51-3) can be stated as follows:
Total removal:1.85 percent
Total biodegradation:0.09 percent
Total sludge adsorption:1.75 percent
Total to Air:0.00 percent
(using 10000 hr Bio P,A,S)

Product Name

Borazine

Synthetic route

Borazine Chemical Properties

Borazine Uses

Borazine Production

Borazine Safety Profile

Borazine Specification

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