product name :
sodium metasilicate pentahydrate
overview
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cas no :
1344-09-8
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einecs no :
215-687-4
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hs code :
2839110000
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grade standard :
industrial grade 97.5% or 99.9%
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appearance :
white crystal granular
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packaging details :
25kg pp/paper bag, 1000kg big bag
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application :
detergent industry
product description
product description
sodium metasilicate pentahydrate
cas no.: 1344-09-8
molecular formula: na2sio3.5h2o
molecular weight: 212.14
property: melting point is 72.2℃,it is easily dissolved in water and difficult dissolved in ethanol and acid. the solution is slightly alkaline. it is easily to absorb moisture when it is stocked in the open air. it has characters of decontamination, decentralization, wetness, penetrability, and ph value buffer capacity.
item | sodium metasilicate pentahydrate granular | sodium metasilicate pentahydrate powder | ||
superior | first | superior | ||
appearance | white granule | white powder | ||
total alkali (na2o), % | 28.20-29.20 | 28.20-29.20 | 28.20-29.20 | |
silica (sio2), % | 27.30-29.00 | 27.30-29.00 | 27.80-29.00 | |
iron (fe), ppm ≤ | 80 | 120 | 80 | |
bulk density, g/cm3 | 0.90-1.10 | 0.90-1.10 | 0.90-1.10 | |
particle size, % | 14-60 mesh≥95.00 | 14-60 mesh≥95.00 | pass 60 mesh≥40.00 | |
whiteness index, % ≥ | 80 | 75 | 90 | |
water insoluble, % ≤ | 0.05 | 0.1 | 0.05 | |
transparence, % ≥ | 85 | — | — | |
packaging and storage: double bags, pe bag inside, pp bag or composite bag made of kraft paper and polypropylene braided fabric outside, with net weight of 25±0.2 kg. alternatively, it may be packaged in other appropriate ways and with net weight of 1000/500kg. don't store it in the open air. avoid rain and direct sunlight and keep dry. | ||||
application: it is widely to make various of detergents, metal surface cleaner, pottery grinding aid, fire-resistant agent, water retention agent, degreasing agent, textile printing and dyeing agent and paper deinking agent etc..
others
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