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Sodium Metasilicate Pentahydrate

【Product name】Sodium Metasilicate Pentahydrate

【Product material】Sodium Metasilicate

【Product Size/ Packing】25kg PP bag

【Product color】White

【Product category】Formula:Na2SiO3·5H2O

Sodium Metasilicate Pentahydrate

English name:Sodium metasilicate Pentahydrate
Formula:Na2SiO3·5H2O
Molecular weight:212.14
CASNO.:10213-79-3

Introduction for sodium metasilicate pentahydrate
Sodium metasilicate pentahydrate is strongly alkaline, having strong capacity of cleaning, buffering and softening, counteracting acidic contamination, emulsifying fat and oil, deflocculating to inorganic. It can replace STPP to be used for the manufacture of effective detergents and rust remover for metal, reducing environmental pollution, preventing corrosion for metal (zinc, aluminum, etc.). Therefore, sodium metasilicate pentahydrate is widely used for the manufacture of a variety of detergents, used as rust remover for metal, grinding aids for ceramics, deinking agent for paper, dyeing and printing auxiliary for removing oil in textile industry, and also used as the raw material for flameproofing agent, plastic maintenance agent, water retention agent, etc. Used in water reducing agents, sodium metasilicate pentahydrate is able to integrate more hydrones to make better moisture absorption effect.

Properties
Sodium metasilicate pentahydrate is an inorganic white powder or crystalline granules, non-toxic, tasteless and environment-safe. It is easy soluble in water, insoluble in alcohol or in acid producing an alkaline solution, very hygroscopic when reacting with CO2 and water from the air. It has the capabilities of removing scale, emulsifying, dispersing, wetting, penetrating, and also has the capability of buffering PH value.


Main usage

Detergent auxiliary, Metal surface treatment chemicals, Grinding aids for ceramic, Raw material for fire-proof auxiliary, plastic maintenance agent, degreasing and textile printing and dyeing functional auxiliaries, water retention auxiliary, deinking auxiliary, peroxidase bleach stabilizer.


Product packing specification

Inner bag: PE plastic bag Outer bag: woven bag Net weight:25kg.


Storage and Delivery

Please store in a cool, dry and ventilated place. Keep products from being wet and avoid too much sun exposure during transportation. Temperature of products’ surroundings should be below 60℃.


The quality standards of Sodium Metasilicate Pentahydrate (Granular) (HG/T2568-2008)

ItemsNational first-rate indexesProduct testing results
Sodium oxide (Na2O)%28.7-30.028.9
Silicon oxide (SiO2)%27.8-29.228.2
Water insoluble matter %≤0.050.01
Iron levels (Fe)%≤0.010.005
White degrees≥8090