Calcium Sulphate Dihydrate - Gypsum Superfine White


SKU: RD11194

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GYPSUM - Superfine White  

Technical Grade

An extremely high purity, micronised gypsum grade, obtained from naturally occurring mineral. It is used as an additive for accelarator of setting time or filler in tile adhesive and crack filler formulations, as a filler in polymers and other compounds as an extender in paints, in the formulation of oilwell drilling muds or as a formulant in fire retardant loft insulation and sacrificial anodes. It can also be used as an absorbent and as a carrier for insecticides or in fertilizers for Agriculture and Environment applications

PLEASE NOTE: This product is not for human or animal consumption.


Properties of Calcium Sulphate:

Chemical Name: Calcium sulphate dihydrate

Minimum gypsum purity %: 99

Water of crystallization %: Maximum 23

Moisture Content %: 0% at manufacture

Solubility of gypsum in water g / litre: 2.1

pH 7

Chemical Composition: CaSO4.2H2O

Physical Properties

Colour white

Colorometer L* value 92.5

Colorometer a* value 0.25

Colorometer b* value 3

Mean particle diameter (microns): 20

Seive Analysis (Mesh size and % weight retained): 2.5% at 150 μm

10% at 75 μm

Specific gravity of gypsum: 2.32

Apparent Density (g/cm³): 0.9

Bulk density (loose) kg / m³: 900

Bulk density (compacted) kg / m³: 1200

Gypsum Hardness (MOH scale) 2

Health & Safety:

Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008. This substance is not classified as dangerous according to Directive 67/548/EEC.


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