Original
The company profile was verified by 
Molecular weight：105.99
CAS NO:497-19-8
【Appearance】White powder. Relative density is 2.532. Decompose in 400℃. Melting point is 851℃. It is soluble in water, insoluble in alcohol. Water solution is alkali.
【Usage】It can be used as analytical reagent, standard reagent, precipitator, buffer agent, etc.
【Standard】
|
Specification Index name |
Analytically pure-AR |
Chemical pure-CP |
|
Content(Na2CO3) /% |
≥99.8 |
≥99.8 |
|
Clarity test |
Qualified |
Qualified |
|
Water insoluble |
≤0.01 |
≤0.02 |
|
Loss on drying |
≤1.0 |
≤1.0 |
|
Chloride(Cl) |
≤0.002 |
≤0.005 |
|
Sulfur compound( counted by SO4 ) |
≤0.005 |
≤0.01 |
|
Nitrogen compound( counted by N ) |
≤0.001 |
≤0.002 |
|
Phosphate and silicate ( counted by SiO3 ) |
≤0.006 |
≤0.013 |
|
Magnesium(Mg) |
≤0.002 |
≤0.005 |
|
Aluminum(Al) |
≤0.003 |
≤0.01 |
|
Potassium(K) |
≤0.005 |
≤0.02 |
|
Calcium(Ca) |
≤0.01 |
≤0.02 |
|
Ferrum(Fe) |
≤0.0005 |
≤0.001 |
|
Heavy metal( counted by Pb) |
≤0.0005 |
≤0.001 |
【Packing】Woven bag lining with plastic bag, kraft bag or fiber can. Net weight is 25kg.
