Sodium metasilicate anhydrous
Cas:6834-92-0
Na2O% 50.50+/-1.00
SiO2% 46.00+/-1.00
Packing:25kg bag.

Sodium metasilicate anhydrous
Properties
Sodium metasilicate anhydrous 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. 
quality standards(HG/T2568-94)
Sodium oxide(Na2O)% 50.50±1.00
Silica(SiO2)% 46.00±1.00
Iron(Fe)%  ≤200ppm
Bulk density(g/cm3) 1.05-1.35
Particle Size(20-65mesh)%  ≥93.0 
Whiteness  ≥85
Packing
The inner bag is sealed PE plastic bag while the outer bag is tidely sutured plastic woven or kraft bag. 26mt/20'fcl
Net weight: 25kg
Packed in accordance with the requirements.
Delivery
Conveyance must be dry and clean. Handle with care and avoid breaking the bags by edged tools. Protect from rain-drenched and moisture.
Storage
Should be stored above the floor more than 20cm and kept a space of more than 20 cm between the piles and the wall. Protect from sun-scorched and rain-drenched. Send out the product in the sequence of stored-up date.