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PRODUCT IDENTIFICATION

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.

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