SODIUM CARBONATE ANHYDROUS (SODA ASH LIGHT)

Posted On: 10 Dec,2022

Chemical name: Sodium Carbonate Anhydrous 

CAS No.: 497-19-8

Molecular formula: Na2CO3

Standard executed: GB/T210.2-2004

Packaging: in 40KG/50KG/750KG PP woven bag with PE liner

 

 

Technical specification

Items Standards: TOP Standards: 1st Standards: 2nd
Purity (Na2CO3),% dry
≥99.2
≥98.8
≥98.0
Purity (Na2CO3),% wet
≥97.9
≥97.5
≥96.7
NaCl content, %
≤0.7
≤0.9
≤1.2
Ferric (Fe) content, %
≤0.0035
≤0.006
≤0.01
Sulphates (SO4) content, %
≤0.03
---
---
Water-insoluble matter content, %
≤0.03
≤0.1
≤0.15
Melting point
851 °C (1,564°F; 1,124 °K) in standard state (at 25 ℃[77 °F], 100 kPa)
851 °C (1,564°F; 1,124 °K) in standard state (at 25 ℃[77 °F], 100 kPa)
851 °C (1,564°F; 1,124 °K) in standard state (at 25 ℃[77 °F], 100 kPa)
Boiling point
1600℃
1600℃
1600℃
Density
2.54g/cm3 (25 ℃) in standard state (at 25 ℃[77 °F], 100 kPa)
2.54g/cm3 (25 ℃) in standard state (at 25 ℃[77 °F], 100 kPa)
2.54g/cm3 (25 ℃) in standard state (at 25 ℃[77 °F], 100 kPa)
Refractive index (nD)
1.485 in standard state (at 25 ℃[77 °F], 100 kPa)
1.485 in standard state (at 25 ℃[77 °F], 100 kPa)
1.485 in standard state (at 25 ℃[77 °F], 100 kPa)
Water solubility
Freely soluble in water
Freely soluble in water
Freely soluble in water
Specific gravity
2.532
2.532
2.532
pH
Aqueous solutions are strongly alkaline. At 25℃, the PH of 1, 5 and 10 wt% sodium carbonate solutions are 11.37, 11.58 and 11.70, respectively.
Aqueous solutions are strongly alkaline. At 25℃, the PH of 1, 5 and 10 wt% sodium carbonate solutions are 11.37, 11.58 and 11.70, respectively.
Aqueous solutions are strongly alkaline. At 25℃, the PH of 1, 5 and 10 wt% sodium carbonate solutions are 11.37, 11.58 and 11.70, respectively.
Sensitivity
Hygroscopic
Hygroscopic
Hygroscopic
Stability
Stable
Stable
Stable
Storage
Dry, tight-closed, in a dry and cool place
Dry, tight-closed, in a dry and cool place
Dry, tight-closed, in a dry and cool place
Shelf life/Retest
24 months
24 months
24 months
Appearance
White, odorless powder
White, odorless powder
White, odorless powder