F6H8N2Si
178.153 g/mol
Industrial ChemicalDanger
Ammonium hexafluorosilicate
CAS16919-19-0EC240-968-3
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
insecticide, miticide, wood preservative
Ammonium hexafluorosilicate is a toxic, white crystalline salt of fluorosilicic acid. It is used as an insecticide, miticide, and wood preservative.
insecticidemiticidewood preservative
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:EU REACH Restriction List
CAS 16919-19-0
Related Compounds
StrongStructure SimilarSimilarity 1.00
Ammonium paratungstate
CAS11120-25-5
Tungsten alloy production
StrongStructure SimilarSimilarity 1.00
Ammonium iodide
CAS12027-06-4
Photographic chemicals and expectorant
StrongStructure SimilarSimilarity 1.00
Ammonium bromide
CAS12124-97-9
Photographic emulsion and fireproofing agent
StrongStructure SimilarSimilarity 1.00
Ammonium fluoride
CAS12125-01-8
Etching and frosting glass
ReferenceSame Category
Potassium hexachloroplatinate(IV)
CAS16921-30-5
photographic processing chemical
ReferenceSame Category
Sodium hexafluoroantimonate
CAS16925-25-0
Inorganic chemical intermediate
ReferenceSame Category
2-Trifluoromethyl thioxanthone
CAS1693-28-3
photoinitiator for polymerization reactions
ReferenceSame Category
Sodium borohydride
CAS16940-66-2
reducing agent
Safety Reference
Danger
H301Toxic if swallowed
H311Toxic in contact with skin
H331Toxic if inhaled
H412Harmful to aquatic life with long lasting effects
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H372Causes damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- EU REACH Restriction ListEURegulationRestrictedSource
Customs Tariff Classification
The international HS code for Ammonium hexafluorosilicate (CAS 16919-19-0) is 2826.90.
HS code (international, 6-digit)
2826.90
EU CN code (8-digit)
2826 90 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
diazanium;hexafluorosilicon(2-)
InChIKey
ITHIMUMYFVCXSL-UHFFFAOYSA-P
SMILES
[NH4+].[NH4+].[F-].[F-].[F-].[F-].[F-].[F-].[Si+4]
Synonyms (26)
- (N H4)2 (Si F6)
- AMMONIUM SILICOFLUORIDE
- Ammomium fluosilicate
- Ammonium fluorosilicate
- Ammonium fluosilicate
- Ammonium hexafluorosilicate
- Ammonium silicon fluoride
- Caswell No. 043
- Diammonium fluorosilicate
- Diammonium fluosilicate
- Diammonium hexafluorosilicate
- LPE 6