Hexafluorosilicic acid

CAS No.	16961-83-4
Chemical Name:	Hexafluorosilicic acid
Synonyms:	ACTH;ACTH 1-39;Sand acid ;CORTICOTROPHIN;CORTICOTROPIN A;FLUOSILICIC ACID;FLUOROSILIC ACID;Fluorsilicic acid;SILICOFLUORIC ACID;FLUOROSILICIC ACID
CBNumber:	CB3726895
Molecular Formula:	F6H2Si
Formula Weight:	144.09
MOL File:	16961-83-4.mol

Hexafluorosilicic acid Property

bp :

108-109°C

density :

1.22 g/mL at 25 °C

refractive index :

1.3500

Fp :

108-109°C

storage temp. :

−20°C

solubility :

H₂O: 1 mg/mL, clear, colorless

Merck :

14,4182

Stability::

Stable in aqueous solution.

CAS DataBase Reference:

16961-83-4(CAS DataBase Reference)

EPA Substance Registry System:

Silicate(2-), hexafluoro-, dihydrogen(16961-83-4)

Safety

Hazard Codes :

Risk Statements :

34-35-20/21/22

Safety Statements :

26-36/37/39-45-27

RIDADR :

UN 1778 8/PG 2

WGK Germany :

RTECS :

VV8225000

F :

8-10

Hazard Note :

Corrosive

TSCA :

Yes

HazardClass :

PackingGroup :

Hazardous Substances Data:

16961-83-4(Hazardous Substances Data)

Hexafluorosilicic acid Chemical Properties,Usage,Production

Chemical Properties
colourless liquid; often supplied as a colourless solution in water

General Description
A colorless fuming liquid with a penetrating pungent odor. Corrosive to metals and tissue. Both the fumes and very short contact with the liquid can cause severe and painful burns. Used in water fluoridation, in hardening cement and ceramics, as a wood preservative.

Air & Water Reactions
Fumes in air. Soluble in water with release of heat and corrosive fumes.

Reactivity Profile
Hexafluorosilicic acid can react with strong acids (such as sulfuric acid) to release fumes of toxic hydrogen fluoride. Attacks glass and materials containing silica. Reacts exothermically with chemical bases (examples: amines, amides, inorganic hydroxides). Reacts with active metals, including iron and aluminum to dissolve the metal and liberate hydrogen and/or toxic gases. Can initiate polymerization in certain alkenes. Reacts with cyanide salts and compounds to release gaseous hydrogen cyanide. Flammable and/or toxic gases are also often generated by reactions with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and weak or strong reducing agents. Additional gas-generating reactions may occur with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), and carbonates. Can catalyze (increase the rate of) chemical reactions. Decomposes when heated to the boiling point to produce very toxic and corrosive hydrogen fluoride gas.

Health Hazard
Inhalation of vapor produces severe corrosive effect on mucous membrane. Ingestion causes severe burns of mouth and stomach. Contact with liquid or vapor causes severe burns of eyes and skin.

Fire Hazard
Special Hazards of Combustion Products: Irritating fumes of hydrogen fluoride may form in fire.

Hexafluorosilicic acid Preparation Products And Raw materials

Raw materials
Calcium fluoride Hydrofluoric acid Silicon dioxide Silicon dioxide Sulfuric acid Celite

Preparation Products
Ammonium hexafluorosilicate Sodium fluoroaluminate Magnesium fluorosilicate Potassium tetrafluoroborate Potassium fluoride Sodium tetrafluoroborate MAGNESIUM HEXAFLUOROACETYLACETONATE DIHYDRATE Chromic acid Potassium fluorosilicate Magnesium fluosilicate Magnesium hexafluorosilicate hexahydrate Sodium tripolyphosphate Aluminum fluoride Sodium fluorosilicate CUPRIC FLUOROSILICATE Trisodium hexafluoroaluminate Ammonium fluoborate Sodium fluoride ZINC SILICOFLUORIDE Lead

Hexafluorosilicic acid Suppliers Global( 144)Suppliers

Supplier	Tel	Fax	Email	Country	ProdList	Advantage
J & K SCIENTIFIC LTD.	--	--	jkinfo@jkchemical.com;market3@jkchemical.com	CHINA	96847	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	+86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing)	+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing)	sh@meryer.com	CHINA	40407	62
Alfa Aesar	400-610-6006; 021-67582000	021-67582001/03/05	saleschina@alfa-asia.com	CHINA	30333	84
Energy Chemical	021-58432009 / 400-005-6266	021-58436166-800	info@energy-chemical.com	CHINA	44198	61
Shanghai Mintchem Development Co., Ltd	0086 21 6845 1592	0086 20 8234 8082	info@tatichem.com	CHINA	38	68
Xinxiang JuYuan Biological Technology Co., Ltd.	86-373-5071644/5071400	86-373-5022250	sales@xxkfqchem.com	CHINA	16	60
Adamas Reagent, Ltd.	400-600-9262	021-51701678	mc@titansci.com	CHINA	13697	59
Shanghai Hanhong Chemical Co., Ltd.	021-61521197,021-60496702,021-54302127,021-54306202,021-61525701,021-54308259	+86-21-54291107	jerry.ma@hanhonggroup.com	CHINA	28730	64
Chengdu XiYa Chemical Technology Co., Ltd.	4008-626-111	028-84752058	sale@xiyashiji.com	CHINA	9763	57
BEST-REAGENT	028-85973071 028-85973075	028-85973075	service@best-reagent.com	CHINA	9961	57

16961-83-4(Hexafluorosilicic acid)Related Search:

Fluoroboric acid Hydrofluoric acid CADMIUM SILICOFLUORIDE Barium hexafluorosilicate SILVER HEXAFLUOROSILICATE ALUMINUM FLUOROSILICATE LEAD SILICOFLUORIDE Cryptohalite ((NH4)2(SiF6)) FERROUS SILICOFLUORIDE ZINC SILICOFLUORIDE Magnesium fluosilicate COBALT SILICOFLUORIDE Hexafluorosilicic acid Silicone elastomer Ⅲ Sodium fluorosilicate Stearic acid Potassium fluorosilicate Citric acid

Hormones Pituitary Hormones Protection and Derivatization Synthetic Reagents Fluoride Sources Deprotection Cytokines, Growth Factors and Hormones SILICOFLUORIC ACID SYSMEHFRWGKPVGKKRRPVKVYPNGAEDESAEAFPLEF SER-TYR-SER-MET-GLU-HIS-PHE-ARG-TRP-GLY-LYS-PRO-VAL-GLY-LYS-LYS-ARG-ARG-PRO-VAL-LYS-VAL-TYR-PRO-ASN-GLY-ALA-GLU-ASP-GLU-SER-ALA-GLU-ALA-PHE-PRO-LEU-GLU-PHE SER-TYR-SER-MET-GLU-HIS-PHE-ARG-TRP-GLY-LYS-PRO-VAL-GLY-LYS-LYS-ARG-ARG-PRO-VAL-LYS-VAL-TYR-PRO-ASN-GLY-ALA-GLU-ASP-GLU-SER-ALA-GLU-ALA-PHE-PRO-LEU-GLU-PHE HUMAN HYDROGEN HEXAFLUOROSILICATE HYDROFLUOROSILICIC ACID HYDROFLUOSILICIC ACID HYDROSILICOFLUORIC ACID H-SER-TYR-SER-MET-GLU-HIS-PHE-ARG-TRP-GLY-LYS-PRO-VAL-GLY-LYS-LYS-ARG-ARG-PRO-VAL-LYS-VAL-TYR-PRO-ASN-GLY-ALA-GLU-ASP-GLU-SER-ALA-GLU-ALA-PHE-PRO-LEU-GLU-PHE-OH HEXAFLUOROSILICIC ACID HEXAFLUOSILICIC ACID FLUOSILICIC ACID FLUOROSILIC ACID FLUOROSILICIC ACID CORTICOTROPIN A CORTICOTROPHIN CORTICOTROPIN (HUMAN) DIHYDROGEN HEXAFLUOROSILICATE Adrenocorticotrophic Hormone (ACTH) BioChemical Cell Biology Cell Signaling and Neuroscience 16961-83-4 ACTH ACTH 1-39 ACTH (1-39), HUMAN ADRENOCORTICOTROPIC HORMONE (1-39) (HUMAN) ADRENOCORTICOTROPIC HORMONE HUMAN hexafluorosilicicacid23%solution Sand acid FLUOROSILICIC ACID, 20-25 WT. % SOLUTION IN WATER Hexafluorosilicic acid 25 % HEXAFLUOROSILICIC ACID 34 %, PURE HEXAFLUOROSILICIC ACID 34 %, TECHNICAL HEXAFLUOROSILICIC ACID APPROX. 25 % Hexafluorosilicic acid, 35% aqueous solution Fluorsilicic acid Hexafluorosilicicacid,2aqueoussolution FLUOROSILICIC ACID, 20-25% SOLUTION H2SiF6 Silicate(2-), hexafluoro-, dihydrogen fluorosilicic acid solution Hexafluorosilicic acid, 23% aqueous solution F6Si2H Hexafluorkieselsure C207H308N56O58S1 H2F6Si FLUOROSILICIC ACID: 35% IN WATER HEXAFLUOROSILICIC ACID: 35% W/W AQUEOUS SOLUTION Inorganics Hexafluorosilicic acid, 35% w/w aq. soln.