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Aluminium Silicate

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Aluminium Silicate

CAS Number 7047-84-9
Molecular Weight 344.47 g/mol
Chemical Formula CH3(CH2)16COOAl(OH)2 or Al(OH)2C18H35O2
EINECS EC Number 230-325-5
FEMA ---

Aluminium Silicate or Aluminosilicate having the general formula Al2SiO3, is remarkable for its use as filler and antisettling agent in paint and as semi reinforcing agent in rubber. In paints, it gives faster surface and through-drying in product which also stand up better to abrasive treatment. It gives excellent substrates for high gloss finishes as they ensure good levelling out. It act as anti-setting agents for pigments and fillers. The viscosity of decorative paints containing our product is highly constant over extended periods of time. Being basic, they also have positive effect on storage stability. In rubber it gives excellent properties in terms of tensile strength, modulus, and resistance to tear and abrasion. In food it is known as E number E559.


General Properties and Specifications of Aluminium Silicate or Aluminosilicate:

Property Special Grade Super Grade General Grade
Appearance White powder White powder White powder
Bulk Density gm/cc 0.20-0.25 0.30-0.35 0.40-0.46
pH Value 9 to 10 8.5 to 9.5 7 to 8
Average particle size Micron 5 to 6 5 to 6 6 to 8
Residue on 700 mesh maximum 1% 1% 1%
Water absorption% 95-105 60-70 35-45
SiO2% 68 61 60
Al2O3% 17 24 30
Na2O % maximum 0.05 0.05 0.05
Moisture % maximum 3.0 1.5 0.5


Certifications :
We manufacture Bulk Drugs / API, Excipients, Pharmaceuticals (IP/BP/USP/NF/Ph. Eur, JP/ CP), Speciality Chemicals(Pure/AR/ACS), Mineral Fortifiers, Food Chemical Codex (FCC) and Flavour chemicals. Our manufacturing facility is cGMP, GLP, ISO 9001, ISO 14001, ISO 22000, ISO/IEC 17025, FSSC 22000, FSSAI, Kosher, HALAL, EXCiPACT, WC, COPP, WHO-GMP and WC certified. We are also REACH registered for export to European countries.