Monosilicic acid supplier | CasNO.10193-36-9

Name
tetrahydroxysilane
EINECS 233-477-0
CAS No. 10193-36-9
Article Data91
CAS DataBase
Density 1.77 g/cm³
Solubility 100ng/L at 25℃
Melting Point
Formula H₄O₄Si
Boiling Point 153-156 °C(Press: 2 Torr)
Molecular Weight 96.1149
Flash Point
Transport Information
Appearance
Safety
Risk Codes
Molecular Structure
Hazard Symbols
Synonyms Monosilicicacid;Orthosilicic acid;Orthosilicic acid (H4SiO4);Silicic acid (Si(OH)4);Silicon hydroxide (Si(OH)4);Silicon tetrahydroxide;Tetrahydroxysilane;Tetrahydroxysilicon;
PSA 80.92000
LogP -2.60880

Synthetic route

: 4424-00-4
silicic acid tetrabenzyl ester

: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With palladium-platinum; hydrogen; aniline In N,N-dimethyl acetamide at 20℃; for 2h; Concentration; Solvent;	96%

: 4424-00-4
silicic acid tetrabenzyl ester

A: 20638-18-0
pyrosilicic acid

B: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With palladium-platinum; hydrogen; aniline at 20℃; for 2h; Concentration; Reagent/catalyst; Time;	A 6% B 92%
With palladium-platinum; hydrogen In N,N-dimethyl acetamide at 20℃; for 2h;	A 34% B 13%

: sodium silicate octahydrate

A: 20638-18-0
pyrosilicic acid

B: 20638-19-1
cyclo trisiloxanehexaol

C: 57956-13-5
(HO)3SiOSi(OH)2OSi(OH)3

D: 20761-28-8
(HO)2SiOSi(OH)2OSi(OH)2O(Si(OH)2O)

E: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With sulfuric acid Kinetics; byproducts: H10Si6O17, H10Si8O21, polysilicate; Na2H2SiO4*8H2O added to zeolite ion-exchange/H2SO4 at 2°C; filtered, product yield dependence to ageing time at room temp.;	A 14% B n/a C n/a D 5% E 51%

...Expand

: 4424-00-4
silicic acid tetrabenzyl ester

A: 20638-18-0
pyrosilicic acid

B: 20638-19-1
cyclo trisiloxanehexaol

C: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With palladium-platinum; hydrogen at 20℃; for 2h;	A 36% B 47% C 8%

...Expand

sodium silicate: sodium silicate

A: 20638-18-0
pyrosilicic acid

B: 20638-19-1
cyclo trisiloxanehexaol

C: 57956-13-5
(HO)3SiOSi(OH)2OSi(OH)3

D: 20761-28-8
(HO)2SiOSi(OH)2OSi(OH)2O(Si(OH)2O)

E: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With sulfuric acid Kinetics; byproducts: H10Si6O17, H10Si8O21, polysilicate; Na2SiO3 added to zeolite ion-exchange/H2SO4 at 2°C; filtered, product yield dependence to ageing time at room temp.;	A 8% B n/a C n/a D 4% E 28%

...Expand

ammonia: ammonia

silica gel: silica gel

: 7646-78-8
tin(IV) chloride

A: tin hydroxide

B: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In water pH=5 - 7;

...Expand

: 681-84-5
tetramethylorthosilicate

: 10193-36-9
silicic Acid

: 7732-18-5
water

: 112926-00-8, 7631-86-9
silica gel

: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In neat (no solvent) Kinetics; solid SiO2 reacted with H2O vapor;

: 7664-93-9
sulfuric acid

: 7440-21-3
silicon

A: 10193-36-9
silicic Acid

B: 7704-34-9
sulfur

...Expand

: 7440-21-3
monosilane

A: 7647-01-0
hydrogenchloride

B: mercury(I) chloride

C: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With water; mercury dichloride In water

...Expand

: 78-10-4
tetraethoxy orthosilicate

: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In hydrogenchloride saponification of distd. Si(OC2H5)4 in n/500-HCl-soln.;;
In water by a hydrolytic process;;
In hydrogenchloride saponification of distd. Si(OC2H5)4 in n/500-HCl-soln.;;

: sodium metasilicate nonahydrate

: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In water salt dissolved in a minimum amount of water added under vigorous stirring to an acidic medium with excess H(1+); not isolated;;

: 16949-65-8
magnesium hexafluorosilicate

: 1310-73-2
sodium hydroxide

A: magnesium fluoride

B: 10193-36-9
silicic Acid

C: sodium fluoride

Conditions

Conditions	Yield
In water boiling MgSiF6 with NaOH;;

...Expand

: silica

: 7732-18-5
water

: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In water Kinetics; investigation of the kinetics of quartz dissoln. at 25°C: pH range 4.5-10.5, 25°C, ionic strength 0.010 mol/l; concn. of dissolved silicon was measured by react. with NH4-molybdate and reduction to form silicomolybdenum compounds; determination of silicon concn. from the absorbance of soln. at 810 nm;

: silica

: 7732-18-5
water

A: silicic acid

B: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In gaseous matrix react. of H2O/O2-stream with quartz frit at 1300°C; not isolated, MS;

...Expand

: 7732-18-5
water

: 112926-00-8, 7631-86-9
silica gel

: 1310-73-2
sodium hydroxide

: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In water the soln. of sodium silicate passed through the cation-exchanger;

...Expand

: 7732-18-5
water

: 7783-61-1
silicon tetrafluoride

A: fluorosilicic acid

B: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In water introduction of SiF4 into H2O;; not isolated (in soln.);;
In water introduction of SiF4 into H2O;; not isolated (in soln.);;

...Expand

: 7732-18-5
water

: 7783-61-1
silicon tetrafluoride

A: 7664-39-3
hydrogen fluoride

B: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In neat (no solvent)

...Expand

: 10026-04-7, 53609-55-5
tetrachlorosilane

: 7732-18-5
water

: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In water byproducts: HCl; dry N2 and vapor of SiCl4 is slowly passed into water in presence of Ag2O under vigorous stirring at 0°C;;
In water

: 13830-68-7
disilicon hexafluoride

: 7732-18-5
water

A: fluorosilicic acid

B: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In water hydrolysis;;

...Expand

: 78-10-4
tetraethoxy orthosilicate

: 7732-18-5
water

: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In ethanol; water by diln. in deionised water of tetraethyl orthosilicate dissolved in ethanol;
In ethanol; water byproducts: C2H5OH; reaction of hydrolysis;
With hydrogenchloride for 0.5h;

: potassium chloride

: 7783-61-1
silicon tetrafluoride

A: potassium hexafluorosilicate

B: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With water In ethanol; water byproducts: HCl;

...Expand

: 13465-71-9
trifluorosilane

A: fluorosilicic acid

B: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With water In water byproducts: H2;
With sodium hydroxide In sodium hydroxide byproducts: H2; decompn. with formation of vapor;;
With NaOH In sodium hydroxide byproducts: H2; aq. NaOH; decompn. with formation of vapor;;
With H2O In water byproducts: H2;

: sodium hexafluorosilicate

: 1310-73-2
sodium hydroxide

A: 10193-36-9
silicic Acid

B: sodium fluoride

Conditions

Conditions	Yield
In not given decompn. with NaOH-soln.;;
In not given decompn. with NaOH-soln.;;

...Expand

: 4667-99-6
chlorotriethoxysilane

A: 7647-01-0
hydrogenchloride

B: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With H2O

: 10025-78-2
trichlorosilane

A: 7647-01-0
hydrogenchloride

B: mercury(I) chloride

C: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With water; mercury dichloride In water HSiCl3 dissolved in dry dibutylether;;

...Expand

: sodium orthosilicate

: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With cation exchange resin diluted after cation exchange;

: lithium silicate

: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
In sulfuric acid solution of fine powdered Li orthosilicate in aq. H2SO4 and treatment by liquid NH3 at -17 °C;; pptn. in the solution;;

: 13830-68-7
disilicon hexafluoride

A: fluorosilicic acid

B: 181778-33-6
1.2-dioxo-disilanediol

C: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With H2O In water byproducts: H2; reaction by hydrolysis in moist air;;

...Expand

: 3410-77-3
tetraisocyanatosilane

: 10193-36-9
silicic Acid

Conditions

Conditions	Yield
With H2O In water byproducts: HNCO; decompn. by hydrolysis;;
With H2O In water byproducts: HNCO; decompn. by hydrolysis;;

: tin hydroxide

: 10193-36-9
silicic Acid

Reaxys ID: 11346541: Reaxys ID: 11346541

Conditions

Conditions	Yield
With ammonium molybdate; nitric acid In water at 650℃; for 1h; pH=2 - 4;

: 10193-36-9
silicic Acid

: 112926-00-8, 7631-86-9
silica gel

Conditions

Conditions	Yield
In neat (no solvent) calcination at 773 K for 5 h;
poly(L-lysine) Conversion of starting material;
In neat (no solvent) H4SiO4 heated at 300°C in vacuum;

: 20638-18-0
pyrosilicic acid

: 10193-36-9
silicic Acid

: 112926-00-8, 7631-86-9
silica gel

Conditions

Conditions	Yield
With aq. Na3PO4 or aq. NaOAc; polyamine In water Kinetics; aq. solns. of Na3PO4, polyamine, mono/disilicic acid mixed at 25°C; aliquots removed and centrifuged; precipitated SiO2 dissolved in NaOH (5min at 90°C), quantified by molybdate method;

: sodium aluminate

: 10193-36-9
silicic Acid

: aluminum trihydroxide

Conditions

Conditions	Yield
In not given stirring with freshly pptd. H2SiO3;
In not given stirring with freshly pptd. H2SiO3;

: 10193-36-9
silicic Acid

: calcium carbonate

: larnite

Conditions

Conditions	Yield
In neat (no solvent) mixing, grinding, pressing, heating (1300°C);

: 10193-36-9
silicic Acid

: calcium carbonate

: calcium metasilicate

Conditions

Conditions	Yield
In neat (no solvent) mixing, grinding, pressing, heating (1300°C);

: 10193-36-9
silicic Acid

: calcium carbonate

: alite

Conditions

Conditions	Yield
In neat (no solvent) mixing, grinding, pressing, heating (1300°C);

: 10193-36-9
silicic Acid

: lithium fluoride

A: 39630-75-6
Si(OH)3F

B: 56977-47-0
SiF6(2-)*H(1+)=HSiF6(1-)

C: 201295-48-9
Si(OH)2F(1+)

D: 7783-61-1
silicon tetrafluoride

E: 17084-08-1
hexafluorosilicate anion

Conditions

Conditions	Yield
With water; lithium perchlorate In water 25°C, 3 m LiClO4 medium, fluorosilicate equilibria followed by potentiometric titration;; products not isolated;

...Expand

Monosilicic acid Specification

The Monosilicic acid, with the CAS registry number 10193-36-9, is also known as Orthosilicic acid. It belongs to the product category of Inorganics. Its EINECS registry number is 233-477-0. This chemical's molecular formula is H₄O₄Si and molecular weight is 96.11486. Its IUPAC name is called silicic acid.

Physical properties of Monosilicic acid: (1)ACD/LogP: 0.65; (2)ACD/LogD (pH 5.5): 0.65; (3)ACD/LogD (pH 7.4): 0.65; (4)ACD/BCF (pH 5.5): 1.84; (5)ACD/BCF (pH 7.4): 1.84; (6)#H bond acceptors: 4; (7)#H bond donors: 4; (8)#Freely Rotating Bonds: 4; (9)Index of Refraction: 1.535; (10)Molar Refractivity: 16.9 cm³; (11)Molar Volume: 54.2 cm³; (12)Surface Tension: 72.1 dyne/cm; (13)Density: 1.77 g/cm³.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: O[Si](O)(O)O
(2)InChI: InChI=1S/H4O4Si/c1-5(2,3)4/h1-4H
(3)InChIKey: RMAQACBXLXPBSY-UHFFFAOYSA-N

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
guinea pig	LDLo	intraperitoneal	120mg/kg (120mg/kg)	BEHAVIORAL: TREMOR BEHAVIORAL: ATAXIA LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION	British Journal of Experimental Pathology. Vol. 3, Pg. 75, 1922.
guinea pig	LDLo	intravenous	100mg/kg (100mg/kg)	BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: MUSCLE WEAKNESS BEHAVIORAL: TREMOR	British Journal of Experimental Pathology. Vol. 3, Pg. 75, 1922.
mouse	LDLo	intraperitoneal	40mg/kg (40mg/kg)	BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: TREMOR BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY)	British Journal of Experimental Pathology. Vol. 3, Pg. 75, 1922.
mouse	LDLo	intravenous	100mg/kg (100mg/kg)	BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BLOOD: CHANGE IN CLOTTING FACTORS BEHAVIORAL: MUSCLE WEAKNESS	British Journal of Experimental Pathology. Vol. 3, Pg. 75, 1922.
rabbit	LDLo	intravenous	100mg/kg (100mg/kg)	BEHAVIORAL: EXCITEMENT CARDIAC: OTHER CHANGES LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES	British Journal of Experimental Pathology. Vol. 3, Pg. 75, 1922.
rat	LDLo	intravenous	100mg/kg (100mg/kg)	BLOOD: CHANGE IN CLOTTING FACTORS	British Journal of Experimental Pathology. Vol. 3, Pg. 75, 1922.

Product Name

tetrahydroxysilane

Synthetic route

Monosilicic acid Specification

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