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Ammonium Silicofluoride

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MOQ : 50 Kilograms

Ammonium Silicofluoride Specification

Shelf Life
2 years under proper storage conditions

Appearance
White crystalline powder

Grade
Industrial Grade

Smell
Odorless

Purity
>98%

Taste
Saline, bitter

Melting Point
100 C (decomposes)

Properties
White crystalline solid, corrosive, hygroscopic, decomposes on heating

Molecular Formula
(NH4)2SiF6

Density
2.15 Gram per cubic centimeter(g/cm3)

Shape
Crystalline

EINECS No
240-969-9

Ingredients
Ammonium fluoride, silica

Physical Form
Powder

Application
Ceramics, Glass Etching, Metal Surface Treatment, Water Fluoridation, Textile

Product Type
Inorganic Salt

Molecular Weight
178.14 g/mol

CAS No
16919-19-0

Usage
Used as a flux for foundry, as an opacifier for glass and ceramics, in electroplating

Structural Formula
[NH4+]2[SiF6-]

Solubility
Soluble in water

Ph Level
Acidic

Poisonous
YES

HS Code
28269090

Storage
Store in cool, dry place. Keep container tightly closed

Boiling Point
Decomposes before boiling

UN Number
2854

Signal Word
Danger

Transport Hazard Class
6.1 (Toxic)

Hazard Statement
Toxic if swallowed or inhaled, causes severe skin burns and eye damage

Packing Group
III

About Ammonium Silicofluoride

We have been able to build up a long and mutual business relationship with clients by offering Ammonium Silicofluoride. To comply with set safety norms, we use quality grade compounds to process this powder. This powder is used in etching glass, metal casting and electroplating. To ensure safe transportation we pack this powder in moisture proof drums. We check this Ammonium Silicofluoride on composition and safety parameters. Also, we offer this powder at cost effective prices.

Product Features:

Extended shelf life
Dissolves in water
Free from adulteration

Products Technical Details:

AMMONIUM SILICOFLUORIDE
PRODUCT IDENTIFICATION
CAS NO.	16919-19-0	AMMONIUM SILICOFLUORIDE
EINECS NO.	240-968-3
FORMULA	(NH4)2SiF6
MOL WT.	178.15
H.S.CODE	2826.9
TOXICITY	Oral mouse LD50: 70 mg/kg
SYNONYMS	Ammonium Fluorosilicate; Cryptophthalite; Silicon Plasma Standards; Silicate(2-), Hexafluoro-, Diammonium; Ammonium Hexafluorosilicate;
SMILES	Hydrogen Fluoride and Ammonia
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	White free flowing crystals
MELTING POINT	100 C (Decomposes)
SPECIFIC GRAVITY	2.01
SOLUBILITY IN WATER	Soluble (Soluble in alcohol)
pH	3.3 (1% Sol.)
STABILITY	Stable under ordinary conditions
APPLICATIONS
Hardening and dustproofing of concrete, manufacturing of ammonium chlorate, Glass etching, Souring agent, Sand inhibiitor in Magnesium metal casting, Textile
SALES SPECIFICATION
APPEARANCE	White free flowing crystals
ASSAY [(NH4)2SiF6]	98.0% min
FLUORIDE (F)	60% min
FREE ACID (H2SiF6)	0.3% max
MOISTURE	0.6% max
WATER INSOLUBLES	0.5% max
SULFATE (SO4)	0.6% max
TRANSPORTATION
PACKING	25kgs in Bag
HAZARD CLASS	6.1
UN NO.	2854

Key Properties and Safety Information

This industrial-grade ammonium silicofluoride is a highly corrosive, toxic compound presented as a white, odorless crystalline powder. Its hygroscopic nature means it absorbs moisture from the air, while its acidic pH and saline, bitter taste emphasize the need for great caution during handling. The compound decomposes on heating, so it must be kept in a tightly sealed container, away from heat and moisture. Personal protective equipment is essential due to its severe health hazards.

Diverse Industrial Applications

Ammonium silicofluoride is valued in glass and ceramics manufacturing, where it acts as an opacifier and flux. In the textile industry, it is used for specialized finishes, while in water fluoridation, it helps in controlled fluoride dosing. Its utility extends to metal surface treatments and electroplating, confirming its versatility across industrial sectors.

Safe Handling and Storage Guidelines

To maintain product integrity, ammonium silicofluoride should be stored in a cool, dry location with the container securely closed. Avoid exposure to moisture, direct sunlight, and sources of heat. Proper industrial safety protocolsincluding gloves, protective clothing, and respiratory masksare indispensable to prevent toxic exposure and corrosive injuries.

FAQs of Ammonium Silicofluoride:

Q: How should ammonium silicofluoride be safely stored and handled?

A: Ammonium silicofluoride should be stored in a tightly closed container, kept in a cool, dry, and well-ventilated area, away from sources of moisture and heat. When handling, always wear protective gloves, safety goggles, and suitable clothing to prevent direct skin and eye contact. Avoid inhalation or ingestion, as it is highly toxic and corrosive.

Q: What are the main industrial uses of ammonium silicofluoride?

A: The compound is utilized as a flux in foundries, an opacifier in glass and ceramics production, for metal surface treatment, water fluoridation, textile finishing, and in electroplating. Its ability to dissolve in water and react with various materials makes it useful across these industries.

Q: Where is ammonium silicofluoride commonly applied in manufacturing processes?

A: It is commonly employed in facilities involved in glass manufacturing, ceramic production, textile treatment plants, water treatment systems for fluoridation, and metal finishing workshops, primarily in regions with developed chemical and materials industries.

Q: When does ammonium silicofluoride decompose, and what precautions are necessary?

A: Ammonium silicofluoride decomposes on heating and does not boil but instead breaks down, releasing hazardous fumes before reaching its melting point. Heating it should always be avoided, and all processes should be conducted under controlled temperatures to prevent accidental decomposition.

Q: What health risks are associated with exposure to ammonium silicofluoride?

A: Exposure may result in severe skin burns, eye damage, and toxic effects if inhaled or ingested. Immediate first aid and medical attention are required if contact or exposure occurs. Use of personal protective equipment and adherence to strict safety protocols is critical.

Q: How does ammonium silicofluoride benefit specific industrial applications?

A: Its function as a flux improves melting processes in foundries, while as an opacifier, it enhances the appearance and durability of glass and ceramics. In water treatment, controlled use provides fluoridation, benefiting public dental health under supervised conditions.

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