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LC5271 Sodium tungstate dihydrate
for analysis

 

Order number Packaging Quantity Price €
AC32271 Plastic bottle 250 g 56.25
AC32271 Plastic bottle 1 kg 171.00

 

Product information
Hill Formula Na2O4W * 2 H2O
Chemical formula Na2WO4 * 2 H2O
HS Code 2841 80 00
EC number 236-743-4
Molar mass 329.86 g/mol
CAS number 10213-10-2

 

Chemical and physical data
Solubility 730 g/l (20 °C)
Melting point 100 °C Elimination of water of crystallisation
Molar mass 329.86 g/mol
Density 3.23 g/cm3 (20 °C)
Bulk density 1600 kg/m3
pH value 9 – 11.5 (100 g/l, H2O, 20 °C)

 

Safety information according to GHS
Hazard Statement(s) H302: Harmful if swallowed.
Signal Word Warning
Hazard Pictogram(s)
RTECS YO7900000
Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly water endangering
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).

 

Safety information
R Phrase R 22
Harmful if swallowed.
Categories of danger harmful
Hazard Symbol Harmful

 

Toxicological data
LD 50 oral LD50 rat 1190 mg/kg

 

Specifications
Assay (thermogravimetric) ≥ 99 %
Identity (x-ray diffraction) passes test
Free alkali (as NaOH) ≤ 0.05 %
Chloride (Cl) ≤ 0.003 %
Sulphate (SO4) ≤ 0.01 %
Total nitrogen (N) ≤ 0.001 %
Fe (Iron) ≤ 0.0005 %
Mo (Molybdenum) ≤ 0.005 %
Pb (Lead) ≤ 0.001 %