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22009
SSA
Sodium Sulphate Anhydrous
Sodium Sulfate, Glauber Salt
7757-82-6
142.04
Na2SO4
231-820-9
28331100
Appearance: white crystalline powder
Physical and Chemical data:
| Melting Point | Boiling Point | Density |
| 884ºC | 1404ºC | 2.68g/m3 |
Other Related indexes
| EINECS | RTECS | PubChem | MDL |
| 231-820-9 | WE1650000 | 24852268 | MFCD00003504 |
Solubility: Soluble in water, glycol, not soluble in ethanol. Solubility in water is as below
| Temperature (ºC) | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
| Solubility by (g) | 4.9 | 9.1 | 19.5 | 40.8 | 48.8 | 46.2 | 45.3 | 44.3 | 43.7 | 42.7 | 42.5 |
Main indexes:
| index | Regular SSA (Mining product) | Neutral SSA (from fiber industry) |
| Purity by wt % | 98 min | 99.0 min |
| pH (5% Solution at 20 ºC) | 9~11 | 6~8 |
| Chlorides as Cl by wt % | 0.7 max | 0.12 max |
| Moisture by wt % | 0.5 max | 0.1 max |
| Fe by wt % | 0.001 max | 0.002 max |
| Water insoluble by wt % | 0.1 max | 0.05 max |
| Ca2+ Mg2+ by wt % | 0.3 max | 0.1 max |
Main types:
Regular SSA (Purity 98% min, whiteness 85% min, moisture 0.5% max, pH value of 5% solution 9~11, NaCl content 0.7% max)
Neutral SSA (pH of 5% solution 6~8)
Big granular SSA (Particle size slightly bigger than regular SSA, but it can not be tell by naked eyes, and bulk density is also the same with regular SSA).
Low Chloride SSA (NaCl content 0.1% max)
Stuffing agent in detergent powder
Paper making
Glass industry
Dye industry
Raw material for making Sodium Silicate
When SSA is exposed in air, it absorbs moisture and becomes sodium sulphate decahydrate (Na2SO4.10H2O)
Even SSA is tightly closed in the containers or bags, it still can cake sometimes, if it can be easily crushed into powder again, then it's called a phenomenon of fake-caking, it won't influence the quality of the material
If the SSA is stocked in a warehouse, then there is no need to use UV-Resistant packing which is USD1/mt higher in cost
We normally list 2 years as the shelf life in our COA, the real shelf life is actually much longer than 2 years if it's stocked in good condition (bags are sealed enough, away from direct sun-light, moisture and other incompatible chemical materials)
Appearance: white crystalline powder
Physical and Chemical data:
| Melting Point | Boiling Point | Density |
| 884ºC | 1404ºC | 2.68g/m3 |
Other Related indexes
| EINECS | RTECS | PubChem | MDL |
| 231-820-9 | WE1650000 | 24852268 | MFCD00003504 |
Solubility: Soluble in water, glycol, not soluble in ethanol. Solubility in water is as below
| Temperature (ºC) | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
| Solubility by (g) | 4.9 | 9.1 | 19.5 | 40.8 | 48.8 | 46.2 | 45.3 | 44.3 | 43.7 | 42.7 | 42.5 |
Main indexes:
| index | Regular SSA (Mining product) | Neutral SSA (from fiber industry) |
| Purity by wt % | 98 min | 99.0 min |
| pH (5% Solution at 20 ºC) | 9~11 | 6~8 |
| Chlorides as Cl by wt % | 0.7 max | 0.12 max |
| Moisture by wt % | 0.5 max | 0.1 max |
| Fe by wt % | 0.001 max | 0.002 max |
| Water insoluble by wt % | 0.1 max | 0.05 max |
| Ca2+ Mg2+ by wt % | 0.3 max | 0.1 max |
Main types:
Regular SSA (Purity 98% min, whiteness 85% min, moisture 0.5% max, pH value of 5% solution 9~11, NaCl content 0.7% max)
Neutral SSA (pH of 5% solution 6~8)
Big granular SSA (Particle size slightly bigger than regular SSA, but it can not be tell by naked eyes, and bulk density is also the same with regular SSA).
Low Chloride SSA (NaCl content 0.1% max)
Stuffing agent in detergent powder
Paper making
Glass industry
Dye industry
Raw material for making Sodium Silicate
When SSA is exposed in air, it absorbs moisture and becomes sodium sulphate decahydrate (Na2SO4.10H2O)
Even SSA is tightly closed in the containers or bags, it still can cake sometimes, if it can be easily crushed into powder again, then it's called a phenomenon of fake-caking, it won't influence the quality of the material
If the SSA is stocked in a warehouse, then there is no need to use UV-Resistant packing which is USD1/mt higher in cost
We normally list 2 years as the shelf life in our COA, the real shelf life is actually much longer than 2 years if it's stocked in good condition (bags are sealed enough, away from direct sun-light, moisture and other incompatible chemical materials)
