Description
Catalogue Number 106649
Replaces SX0761-20
Product Information
CAS number 7757-82-6
EC number 231-820-9
Grade ACS,ISO,Reag. Ph Eur
Hill Formula Na₂O₄S
Chemical formula Na₂SO₄
Molar Mass 142.04 g/mol
HS Code 2833 11 00
Quality Level MQ300
Physicochemical Information
Density 2.70 g/cm3 (20 °C)
Melting Point 888 °C
pH value 5.2 – 8.0 (50 g/l, H₂O, 20 °C)
Bulk density 1400 – 1600 kg/m3
Solubility 200 g/l
Toxicological Information
LD 50 oral LD50 Rat > 2000 mg/kg
Safety Information according to GHS
RTECS WE1650000
Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly hazardous to water
Disposal 14
Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).
Storage and Shipping Information
Storage Store at +2°C to +30°C.
Transport Information
Declaration (railroad and road) ADR, RID Kein Gefahrgut
Declaration (transport by air) IATA-DGR No Dangerous Good
Declaration (transport by sea) IMDG-Code No Dangerous Good
Specifications
Assay (alkalimetric) ≥ 99.0 %
Assay (alkalimetric, calculated on dried substance) 98.5 – 101.0 %
Identity passes test
Appearance of solution passes test
Insoluble matter ≤ 0.01 %
Acidity or alkalinity passes test
pH-value (5 %; water; 25 °C) 5.2 – 8.0
Chloride (Cl) ≤ 0.001 %
Phosphate (PO₄) ≤ 0.001 %
Total nitrogen (N) ≤ 0.0005 %
Heavy metals (ACS) ≤ 0.0005 %
Heavy metals (as Pb) ≤ 0.0005 %
As (Arsenic) ≤ 0.0001 %
Ca (Calcium) ≤ 0.005 %
Fe (Iron) ≤ 0.0005 %
K (Potassium) ≤ 0.002 %
Mg (Magnesium) ≤ 0.001 %
Loss on drying (130 °C) ≤ 0.5 %
Loss on ignition (800 °C) ≤ 0.5 %
Corresponds to ACS, ISO, Reag. Ph Eur