Listing ID #6058962
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hs code 28399090
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standard grade
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specification
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colour     :      clear to whitish viscous liquid
odour      :      odourless or slight musty odour
k2o       :      8.30 -12.70 % w/w
sio2       :      20.8 – 26.50 % w/w
solids     :      29.0 – 39.20 % w/w
weight ratio :      2.10 – 2.50
molar ratio :      3.29 – 3.92
ph        :      11.3 – 11.70
sp. gravity  :      1.25 – 1.38 at 25 oc
features, benefits & applications
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a) potassium silicate is more soluble and compatible with other ingredients than sodium silicate. it is used in various formulations like heavy duty detergents, soaps, etc.
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b) compared to sodium silicate it does not form white carbonate film – efflorescence – on exposure to atmosphere. this makes them preferred choice in decorative coating, paints, etc.
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 c) it is used as binder during production of welding rod, as soft violet flame of potassium is easier to see through during welding compared to blinding yellow flame of sodium.
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 d) potassium silicate is convenient source of potassium for plant nutrients.
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 e) as it melts and flows at high temperature, it is used as binder in refractory mortar and specialty cements.
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 f) non tacky property makes it important additive in mortars, acid lining, etc.