Ammomium fluosilicate , 98% , 16919-19-0

Synonym(s):
Cryptohalite

CAS NO.：16919-19-0

Empirical Formula: F6H8N2Si

Molecular Weight: 178.15

MDL number: MFCD00010887

EINECS: 240-968-3

PRODUCT Properties

• Melting point: °Cd ec.)
• Density: 2.01 g/mL at 25 °C(lit.)
• vapor pressure: 9.99Pa at 20℃
• solubility: water solubility 18 g/100 g water.
• form: Crystalline Powder and Chunks
• Specific Gravity: 2.011
• color: White
• Water Solubility: Slightly soluble in water. Insoluble in alcohol and acetone.
• Hydrolytic Sensitivity: 0: forms stable aqueous solutions
• Merck: 14,527
• Exposure limits: ACGIH: TWA 2.5 mg/m3; NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
• InChI: InChI=1S/F6Si.2H3N/c1-7(2,3,4,5)6;;/h;2*1H3/q-2;;/p+2
• InChIKey: ITHIMUMYFVCXSL-UHFFFAOYSA-P
• SMILES: [Si-2](F)(F)(F)(F)(F)F.[NH4+].[NH4+]
• LogP: -6.01 at 20℃

Description and Uses

Ammonium hexafluorosilicate is used as a disinfectant and analytical reagent. It finds application in etching glass, metal casting, and electroplating. It is also employed as a wood preservative agent and mothproofing agent in textiles. It plays a useful application in soldering flux. It is also used to arrest caries treatment without discoloration on demineralized primary tooth enamel.

Safety

• Symbol(GHS): GHS06
• Signal word: Danger
• Hazard statements: H301+H311+H331
• Precautionary statements: P280-P301+P310+P330-P302+P352+P312-P304+P340+P311
• Hazard Codes: T
• Risk Statements: 23/24/25
• Safety Statements: 26-45
• RIDADR: UN 2854 6.1/PG 3
• WGK Germany: 2
• RTECS: VV7800000
• Hazard Note: Toxic
• TSCA: Yes
• HazardClass: 6.1
• PackingGroup: III
• HS Code: 2826908090
• Toxicity: LD orally in guinea pigs: 150 mg/kg (Simonin, Pierron)