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Factory price calcium sulfate CAS 7778-18-9:
Colorless columnar crystal or white crystalloid powder. 128 °C lose 1.5 gesso to half hydrate and 163 °C above be without water content. The relative density 2.32, melting point °C (1450 without water content). Slightly soluble in hot water soluble in alcohols and most organic solvents.
Calcium Sulphate Brief Description
Appearance:white powder
Purity :98%min
Packing: 25kg/bag Prompt Delivery
Shelf life: 2 year
Calcium Sulfate Specifications
| Items | Standards | ||
| CASO4 (%) | 98 Min | ||
| fluoride(%) | 0.003 Max | ||
| As(%) | 0.0002 Max | ||
| Pb(%) | 0.0002 Max | ||
| Loss on drying quality scores(%) | 19.0-23.0 | ||
| Se(%) | 0.003 Max |
| Conclusion: | The product conforms to the standard of FOOD GRADE | ||
| Storage: | Store in a cool and dry place and Keep away from strong light and heat | ||
ITEM | STANDARD | ||
sodium sulphate %(Na2SO4) | 99.5 MIN. | 99.0 MIN. | 99.0 MIN. |
water insolubles % | 0.01 MAX. | 0.05 MAX. | 0.05 MAX. |
Ca + Mg (as Mg) % | 0.03 MAX. | 0.15 MAX. | 0.15 MAX. |
chlorides %(Cl) | 0.07 MAX. | 0.35 MAX. | 0.35 MAX. |
iron %(Fe) | 0.002 MAX. | 0.002 MAX. | 0.002 MAX. |
moisture % | 0.20 MAX. | 0.20 MAX. | 0.20 MAX. |
whiteness % | 85 MIN. | 82 MIN. | 82 MIN. |
PH-value | 6-7.5 | 6-8 | 9-11 |
Partickle size: Passed through on 100 mesh | around 60-65% | around 60-65% | not required |
Application:
Analytics reagents, also used in water treatment, papermaking, printing, dyeing, metallurgy and coating, adhesive production.
Calcium Sulfate Functions
1. Commercial Baking Industry since most grains contain less than 0.05% calcium, the fillers are economical sources of supplemental calcium in enriched flour, cereals, baking powder, yeast, bread conditioners and cake icing, the gypsum products can also be found in canned vegetables and artificially sweetened jellies and preserves.
2. Brewing Industry
in brewing Industry, calcium sulfate promotes a smoother tasting beer with improved stability and a longer shelf life.
3. Soybeaning Industry Calcium sulfate has been used in China for over 2,000 years to coagulate soy milk to make tofu .Calcium sulfate is essential for certain kinds of tofu. Tofu made from calcium sulfate willbe softer and smoother with a mild, bland flavor profile.
4. Pharmaceutical
For pharmacyeutical applications, calcium sulfate is extensively used as a dilluent because it good flowability while also serving as dietary calcium supplement.






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