Sodium Metasilicate Pentahydrate
No.: SD-018
GENERAL INFORMATION
|
• HS CODE |
28391100 |
|
• CAS NO |
10213-79-3 |
|
• GRADE |
Technical Grade |
|
• FORMULA |
Na2SiO 3·5H2O |
|
• MOLECULAR WEIGHT |
212.13 |
PROPERTIES
|
• Appearance |
Colorless or white crystalline powder |
|
• Odor |
Odorless |
|
• Melting Point |
72.2° C |
|
• Specific Gravity |
0.7 ~ 1.0 g/ cm 3 |
|
• Solubility |
Easily soluble in water and lye, insoluble in alcohol and acid |
SPECIFICATIONS
|
• Sodium oxide (Na2O) |
28. 0%-30.0 % |
|
• Silica (SiO2 ) |
27% -29 % |
|
• Whiteness |
75.0 % Min |
|
• Iron(Fe) |
200 ppm max |
|
• Water insoluble substances |
0.2 % max |
APPLICATION
• Mainly used in making high efficiency detergent and metal cleaner. Instead of STPP, it can raise cleaning efficiency and reduce environment pollution, provides excellent alkaline buffer, corrosion prevention for metal (i.e. Zinc, Aluminum), and function of softening water.
PACKING
• 25kg/bag 20fcl ≤25mt
STORAGE AND TRANSPORTATION
• Store in cool and dry place, keep away from sunlight and in tightly closed container away from incompatible materials and foodstuff containers.
• Avoid oxidizing agents, acids, acid chlorides and acid anhydrides.
