16919-19-0 Usage
Description
Ammonium hexafluorosilicate is a white crystalline solid that is odorless, noncombustible, and has the ability to corrode aluminum. It is a slightly adhering crystalline powder with a density of 2.01 g/cm3 and decomposes prior to melting.
Uses
1. Used in Disinfection and Analytical Reagents:
Ammonium hexafluorosilicate is used as a disinfectant and analytical reagent due to its effective properties in these applications.
2. Used in Glass Etching:
Ammonium hexafluorosilicate is used as an etching agent for glass, providing a controlled and precise etching process.
3. Used in Metal Casting:
It is employed in the metal casting industry, where it aids in the casting process by improving the quality and finish of the cast metal.
4. Used in Electroplating:
Ammonium hexafluorosilicate is used in electroplating to enhance the plating process and improve the quality of the plated surface.
5. Used as a Wood Preservative Agent:
It serves as a wood preservative agent, helping to protect wood from decay and damage caused by environmental factors and insects.
6. Used as a Mothproofing Agent in Textiles:
Ammonium hexafluorosilicate is used in the textile industry as a mothproofing agent to protect fabrics from damage caused by moths and other insects.
7. Used in Solder Flux:
It plays a useful role in soldering flux, improving the soldering process and ensuring a strong and durable bond between metal surfaces.
8. Used in Dental Caries Treatment:
Ammonium hexafluorosilicate is used to arrest caries treatment without causing discoloration on demineralized primary tooth enamel, making it a valuable component in dental care.
9. Used in Pesticides:
It is also utilized in the production of pesticides, where it contributes to the effectiveness of the product in controlling pests.
10. Used in Solder Flux (again, for clarity):
Ammonium hexafluorosilicate is also used in soldering flux, reiterating its importance in the soldering process for ensuring a strong and durable bond between metal surfaces.
Air & Water Reactions
Water soluble.
Reactivity Profile
Salts, basic, such as Ammonium hexafluorosilicate, are generally soluble in water. The resulting solutions contain moderate concentrations of hydroxide ions and have pH's greater than 7.0. They react as bases to neutralize acids. These neutralizations generate heat, but less or far less than is generated by neutralization of the bases in reactivity group 10 (Bases) and the neutralization of amines. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible.
Hazard
Very toxic; fatal.
Health Hazard
Inhalation of dust can cause pulmonary irritation and can be fatal in some cases. Ingestion may be fatal. Contact with dust causes irritation of eyes and irritation or ulceration of skin.
Fire Hazard
Special Hazards of Combustion Products: Toxic and irritating hydrogen fluoride, silicon tetrafluoride, and oxides of nitrogen may form in fires.
Flammability and Explosibility
Notclassified
Purification Methods
Crystallise the salt from water (2mL/g). After 3 recrystallisations, the Technical grade salt has Li, Na, K and Fe at 0.3, 0.2, 0.1 and 1.0 ppm respectively.
Check Digit Verification of cas no
The CAS Registry Mumber 16919-19-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,9,1 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16919-19:
(7*1)+(6*6)+(5*9)+(4*1)+(3*9)+(2*1)+(1*9)=130
130 % 10 = 0
So 16919-19-0 is a valid CAS Registry Number.
InChI:InChI=1/FO2Si.H3N/c1-4(2)3;/h;1H3/q-1;/p+1