Share on (60007873901):
Na2SO4.10H2O sodium sulphate anhydrous glauber salt
1.Description:
CAS No. | 7757-82-6 |
EINECS No. | 231-820-9 |
Molecular Formula | Na2SO4 |
Molecular Weight | 142.06 |
Melting Point | 884°C |
Boiling Point | 1404°C |
Relative Density | 2.68 |
Water Solubility | Soluble |
Physical Property | White, odorless, taste bitter, crystallization or powder. |
Solubility | Insoluble in ethanol. Soluble in water and glycerinum. |
Stability | Stable, insoluble in acid, aluminum, magnesium, has the water absorbability. |

2.Specification:
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 |
3.Application:
(1) Industry Grade : Used in Dyeing and printing Industry ,as dechlorinating agent and bleaching agent, in leather and tanning industry as bleaching agent , developer agent , reductant agent , stabilizer agent , or used in papermaking, electronic and water treatment industry.
(2) Food Grade: In food industry as additive (E223) preservative, antioxidant and antimicrobic for fruits (dried, glazed and candled), vegetables (onions, potatoes, etc.), juices (citrus and grapes) and fish (shrimps and prawns). In silage treatment as antifermentative. In starch and sweeteners production as bacteriostatic.
(3) Photo Grade: In the photographic industry as component of developer bath .
4.Package:
25kg or 50kg or 1000kg plastic woven bag, lined with plastic bag, 25~27MT/20fcl 
5.Storage:
Sodium Sulphate must store in a cool, dry, well-ventilated warehouse. Keep away from fire, heat source. It should be kept apart from the acids, avoid mixing reserve. Storage areas should be equipped with appropriate materials to collect leakage.
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