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Sodium Hydroxide Powder

Specification:

Sr.No Tests Specifications
1 Descriptions` White Deliquescent Powder
2 Assay (min) 97%
3 Carbonate (as Na2CO3 <1%
4 Chloride <0.01%
5 Sulphate(SO4) <0.003%
6 Phosphate(PO4) <0.002%
7 Silica(SiO2) <0.01%
8 Aluminium(Al) <0.001%
9 Heavy Metals(as Pb) <0.0005%
10 Potassium(K) <0.1%
11 Total Nitrogen(N) <0.0005%
12 Arsenic(As) <0.0004%
13 Iron(Fe) <0.001

Properties:

Chemical formula NaOH
Molecular weight 40
Absolute density, g/cm3 2.13
Melting point, °C 318.4
Boiling point, °C 1390
Solubility in water*,
g/100g H2O
42@ 0°C
114 @ 25°C
347 @ 100°C