di SODIUM TARTRATE DIHYDRATE
di SODIUM TARTRATE DIHYDRATE AR/ACS
Volumetric standard for the standardisation of KARL FISCHER reagent for use in the determination of water.
Short Name: di SODIUM TARTRATE DIHYDRATE
Synonym: L-(+)-Tartaric acid disodium salt, Disodium tartrate dihydrate, Sodium tartrate dihydrate
Basic Details
Article No.
LG4285
Grade
AR/ACS
Purity
99.0%
CAS No.
6106-24-7
HS Code
2918.1390
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
White crystalline
Odour
Slight tartaric odor
pH value
7 - 9 at 50 g/l at 20 °C
Melting point/ Freezing point [°C]
120°C
Density [g/cm3]
1.82
Solubility in water [% weight]
29 g/100 g water at 60C
Chemical Specifications
Appearance
White crystalline powder
Assay (by HClO4 titration)
99.0-101.0%
Identity (IR)
Passes test
Optical rotation (c = 10%; H2O)
+25.0° to +27.0°
Insoluble matter (10% in water)
Max 0.005%
pH (5% solution in water; 25°C)
7.0 - 9.0
Loss on drying (150°C to constant weight)
15.61 - 15.71 %
Chloride (Cl)
Max 0.0005%
Iron (Fe)
Max 0.001%
Heavy metal (as Pb)
Max 0.0005%
Ammonium (NH4)
Max 0.003 %
Sulphate (SO4)
Max 0.005%
Phosphate (PO4)
Max 0.0005%
Calcium (Ca)
Max 0.01%
Safety Information & Hazard Symbols