98% Ammonium Fluorosilicate (NH4) 2si6 16919-19-0

• CAS No.: 16919-19-0
• Formula: F6h8n2si
• EINECS: 240-968-3
• Certification: ISO
• Purity: 90%~99%
• Type: Ammonium Fluorosilicate
• Model NO.: BXC-A-01
• Appearance: Powder
• Grade Standard: Industrial Grade
• Formular: (Nh4)2sif6
• Molecular Weight: 178.14
• Hazard Class: 6.1
• Un: 2854
• Storage: Dry and Ventilanting
• Transport Package: 25kg
• Specification: Colorless or white crystal powder
• Origin: China
• HS Code: 28261900

Product Description

            Ammonium silicofluoride/Ammonium Fluorosilicate/Ammonium hexaflurosilicate

1.Character:  
        It is colorless or white crystal powder. It has two modifications: α and β. The α modification has cubic phase with density of 2.011/cm3 and the β modification has trigonal phase with density of 2.152g/cm3. It is soluble in water and alcohol, but insoluble in acetone. It is stable in air. The β modification will be destroyed and translated to α modification when it is long heated. Poisonous!
 
2.Uses: 
        It is used as glass etchant, disinfector in fermenting industry, mothproof agent of textile, timber antiseptic, and in soldering flux, barium salt determine, light metal cast, plating and etc. It is also used to make cryolite and ammonium chlorate, to extract potassium from greensand.
 
3.Packing: 
        plastic weaven bag lined with polythene plastic bag, 25kg per bag.

4.Warehouse
It should be stored in a cool, ventilated and dry warehouse.
Avoid contact with oxidizing agents and acids.

5.Transportation
Store in a cool, ventilated warehouse. Keep away from fire and heat sources. It is kept by a special person. Keep container tightly closed. It should be stored separately from oxidants, acids, and edible chemical raw materials. Do not smoke, drink or eat at the operation site. When handling, load and unload lightly to prevent damage to packaging and containers. Personal protection should be paid attention to when packaging and handling operations

6.Certificate

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