www.be-longgroup.com/Industrial/Sodium-Metasilicate-Pentahydrate.html
www.be-longgroup.com/Industrial/Sodium-Metabisulphite.html

Sodium Metasilicate Pentahydrate
SODIUM METASILICATE PENTAHYDRATE GENERAL INFORMATION

• HS CODE  28391100
 
• CAS NO
 10213-79-3
 
• GRADE 
 Technical Grade
 
• FORMULA
 Na 2 SiO 3 .5H 2 O
 
• MOLECULAR WEIGHT
 212.13
 

SODIUM METASILICATE PENTAHYDRATE PROPERTIES

• Appearance  Colorless or white crystal
 
• Odor
 Odorless
 
• Melting Point
 72.2° C
 
• Specific Gravity
 0.7 ~ 1.0 g/ cm 3
 
• PH
 Basic
 
• Solubility
 610g/ l in water (@ 30° C)
 

SODIUM METASILICATE PENTAHYDRATE SPECIFICATIONS

• Alkali Content (as Na2 O)    28. 0% ~ 30.0 %
 
• Content as (SiO 2 )
 2 7% ~ 29 %
 
• Degree of Whitness
 75.0 % Min
 
• PH Value(1 % at 20)
 12.4-12.6
 
• Fe
 200 ppm max
 
• Water insolubles
 0.2 % max
 

SODIUM METASILICATE PENTAHYDRATE 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. Mainly used as aids of washes detergent improver and metal cleaner.

SODIUM METASILICATE PENTAHYDRATE PACKING
• 25kg/bag  20fcl ≤25mt

SODIUM METASILICATE PENTAHYDRATE 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.