Ammonium Hexafluorosilicate CAS 16919-19-0 AHSF

Ammonium fluosilicate (chemical formula: (NH₄)₂SiF₆) is an important inorganic fluosilicate compound, a white crystalline powder. The compound is moderately toxic and irritating to skin and mucous membranes, protective equipment is required for operation, and care should be taken to seal and store it in a cool and dry place, avoiding contact with acids and alkalis.

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Model:
16919-19-0
Brand:
futurechemical
Code:
16919-19-0

Product Description

Ammonium hexafluorosilicate Basic information
Product Name:	Ammonium hexafluorosilicate
CAS:	16919-19-0
MF:	F6H8N2Si
MW:	178.15
EINECS:	240-968-3
Mol File:	16919-19-0.mol
Ammonium hexafluorosilicate Chemical 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
color	White
Specific Gravity	2.011
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
Exposure limits	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℃
CAS DataBase Reference	16919-19-0(CAS DataBase Reference)
EPA Substance Registry System	Ammonium silicofluoride (16919-19-0)

Ammonium hexafluorosilicate CAS 16919-19-0 AHSF F6H8N2Si Glass etching agent Textile mothproofing agent Wood preservative Metal welding flux

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.