QC Test reports for Assured quality sodium metasilicate pentahydrate crystal
Product Description
Sodium metasilicate, the product of our company, is a non-toxic, tasteless, pollution-free white crystalline granular, easy soluble in water, insoluble in alcohol or in acid. As a kind of important inorganic chemical product, it has a variety of uses in many fields and more and more uses will be developed in the future.
1. sodium metasilicate anhydrous
indexes of sodium metasilicate
Item
Standard
NA2O %
50.0-52.0
SiO2 %
45 min
Fe(PPM)
200 max
Water insoluble %
0.1 max
Bulk Density(g/cm3)
1.05-1.35
Partical Size(18-60mesh) %
93 min
Whiteness %
85 min
PH of 0.1% Solution
12-13
Appearance
White , uniform , beaded
2. sodium metasilicate pentahydrate
indexes of sodium metasilicate
Item
Standard
NA2O %
28.7-30.0
SiO2 %
27.8-29.2
Fe(PPM)
100 max
Water insoluble %
0.05 max
Bulk Density(g/cm3)
0.80-0.97
Partical Size(16-30mesh) %
90 min
Whiteness %
80 min
PH of 0.1% Solution
12-13
Appearance
very small white granular
3. The appearance as below of sodium metasilicate
very small granular
4. The usage of sodium metasilicate
In wash industry: 1. It has the strong capability of cleaning, widely used for the manufacture of a variety of detergents in detergent industry, so it is the best substitute for STPP, reducing environmental pollution. 2. Sodium metasilicate provides anti-corrosion protection to metals (zinc, aluminium, etc.) and is used as metal cleaner and metal surface treatment agents. In the textile industry: mainly used as printing and dyeing auxiliaries, fabric pre-treatment agent and as detergents in cooking and dyeing cotton yarn. In the Paper & Printing Industry: It can be used as adhesives, old paper deinking agent, paper surface treatment agent and printing detergent. In the ceramic industry: used for sludge thinners. It is especially suitable for additives used in slip-casting forming and ceramic forming.
5.storage
Should be stored above the floor more than 20cm and kept a space of more than 20cm between the piles and the wall.Protect from sun-scorched and rain-drenched.Send out the product in the sequence of stored-up date.
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Certificate
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