Variation ID | Product Code | Pack Size | List Price | Qty | ||
---|---|---|---|---|---|---|
photo_camera | ECE1024-X | 100g Foil Pouch
ECE1024-X |
£3.19 | |||
photo_camera | ECE1024-2X | 250g Foil Pouch
ECE1024-2X |
£1.75 | |||
photo_camera | ECE1024-5X | 500g Foil Pouch
ECE1024-5X |
£4.39 | |||
photo_camera | GPC1024-2X | 250g
GPC1024-2X |
£7.23 | |||
photo_camera | GPC1024-5X | 500g
GPC1024-5X |
£11.55 | |||
photo_camera | GPC1024-Y | 1Kg
GPC1024-Y |
£18.53 | |||
photo_camera | GPC1024-2.5Y | 2.5Kg
GPC1024-2.5Y |
£13.95 | |||
photo_camera | GPC1024-5Y | 5Kg
GPC1024-5Y |
£44.68 | |||
photo_camera | GPC1024-10Y | 10Kg
GPC1024-10Y |
£71.41 | |||
photo_camera | ECE1024-25Y | 25Kg
ECE1024-25Y |
£64.99 |
Calcium sulphate (or calcium sulfate) is a common laboratory and industrial chemical. In the form of gamma-anhydrite (the nearly anhydrous form), it is used as a desiccant. It is also used as a coagulant in products like tofu. In the natural state, unrefined calcium sulphate is a translucent, crystalline white rock. When sold as a colour-indicating variant under the name Drierite, it appears blue or pink due to impregnation with Cobalt(II) chloride, which functions as a moisture indicator. The hemihydrate (CaSO4.~0.5H2O) is better known as plaster of Paris, while the dihydrate (CaSO4.2H2O) occurs naturally as gypsum. The anhydrous form occurs naturally as beta-anhydrite. Depending on the method of calcination of calcium sulphate dihydrate, specific hemihydrates are sometimes distinguished: alpha-hemihydrate and beta-hemihydrate. They appear to differ only in crystal shape. Alpha-hemihydrate crystals are more prismatic than beta-hemihydrate crystals and, when mixed with water, form a much stronger and harder superstructure.
Calcium Sulphate Hemihydrate 96%
Minimum Assay: <96%
Molecular Formula: CaO4S
Molecular Weight: 136.14
Solubility in water: 0.24g in 100g water
Melting Point: 1450°
Density (g/cm3): 2.96
Loss on ignition: <2.85%
Cas Number: 7778-18-9
Einecs Number: 231-900-3
HS Code / Commodity Code: 2520100000
Hazard Phrases: H0001