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Product Name：Sodium Sulfate
Synonym: /
CAS NO.：7757-82-6
Chemical & Physical Properties
Density: 2.68 g/mL at 25 °C(lit.)
Boiling Point: 1700°C
Melting Point: 884 °C(lit.)
Molecular Formula: Na2O4S
Molecular Weight: 142.042
Exact Mass: 141.931274
PSA: 88.64000
Vapour Pressure: 3.35E-05mmHg at 25°C
Index of Refraction: 1.484
Storage condition: Store at RT.
Stability: Stable. Incompatible with strong acids, aluminium, magnesium, strong bases. Hygroscopic.
Water Solubility: 18.5 mg/L
Specification
Appearance: White powder
Assay: ≥98.0%
Water insoluble matter: ≤0.1%
Ca-Mg: ≤0.3%
Chloride: ≤0.7%
Fe: ≤0.01%
Water : ≤0.5%
Application
Mainly used as a filler for dyes and auxiliaries to adjust the concentration of dyes and auxiliaries so that the standard concentration can be achieved. It can also be used as a dye accelerator for direct dyes, sulfur dyes, and vat dyes when dyeing cotton, as a retarder for direct acid dyes when dyeing silk and wool animal fibers, and as a background color for printing silk fabrics. protective agent, etc.
Package and Storage
25kg/bag, store at room temperature away from light.
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