Product Profile of Alumina Hydrate
Alumina Hydrate has 1.535 refractive index and available with 6-3 to 6-7 pH value. Marathwada Chemical Industries [P] Ltd manufactures Alumina Hydrate. Marathwada Chemical Industries [P] Ltd supplies various types of sodium aluminate, aluminum stearate, barium stearate, zinc stearate etc. Alumina Hydrate improves the finish of dried ink films. If gloss varnish can be used, the addition of same increases the finish still further. A combination of hydrate and gloss varnish is frequently used. This Alumina Hydrate comes with acidic properties; it does not change appreciably the acidity of the lithographic fountain solution during the printing operation.
Specifications of Alumina Hydrate are:
Specific Gravity: 2.43
Bulk Density :0.32
Oil Absorption: 65 +/- 5 per 100 gms.
pH :6.8 to 9
Moisture Residue on Sieve :22 to 26 %
Of 240 Mesh: Max. 1 %
Refractive Index :1.535
