Merck 1066379025 硫酸钠 (Na₂O₄S, 纤维纸箱 25kg)

CAS #: 7757-82-6

EC number: 231-820-9 

Hill Formula: Na₂O₄S 

Molar Mass: 142.04 g/mol

Assay (precipitative titration): ≥ 99.0 %

Identity: passes test

Insoluble matter: ≤ 0.01 %

pH-value (5 %; water, 25 °C): 5.2 - 9.2

Chloride (Cl): ≤ 0.001 %

Phosphate (PO₄): ≤ 0.001 %

Total nitrogen (N): ≤ 0.0005 %

Heavy metals (ACS): ≤ 0.0005 %

As (Arsenic): ≤ 0.0001 %

Ca (Calcium): ≤ 0.01 %

Fe (Iron): ≤ 0.0005 %

K (Potassium): ≤ 0.002 %

Mg (Magnesium): ≤ 0.001 %

Loss on ignition (800 °C): ≤ 0.5 %

Particle size (250-2000 µm): ≥ 85 %