Sodium carbonate,anhydrous
Molecular formula::Na2CO3 Molecular weight::105.99
Molecular formula: Na2CO3 Molecular weight: 105.99
Properties: White powder or granule. Gradually absorb water in the air to become a hydrate. relative density 2.532. 400 ℃ decomposition. Relative density 2.532, decomposition starts at 400°C. Melting point 851°C, soluble in water. Melting point 851°C, soluble in water, insoluble in ethanol. The aqueous solution is alkaline.
Indicator Parameters:
Specification Indicator name |
AR |
CP |
Refined | Battery grade |
(Na2CO3) /%content |
≥99.8 |
≥99.8 |
≥99.0 |
based on according to user user actual actual requirements Request Parameters Number of Production Production |
Clarity test / |
eligible | eligible | eligible | |
Water insoluble substance |
≤0.01 |
≤0.02 |
— |
|
Loss on drying |
≤1.0 |
≤1.0 |
≤2.0 |
|
(Cl) chloride |
≤0.002 |
≤0.005 |
≤0.01 |
|
(以SO4计) Sulfur compounds |
≤0.005 |
≤0.01 |
≤0.025 |
|
(以N计) Nitrogen compounds |
≤0.001 |
≤0.002 |
eligible | |
(以SiO3计) phosphate and silicate |
≤0.006 |
≤0.013 |
—— |
|
(Mg) magnesium |
≤0.002 |
≤0.005 |
—— |
|
(Al) aluminium |
≤0.003 |
≤0.01 |
—— |
|
K) potassium |
≤0.005 |
≤0.02 |
—— |
|
(Ca) calcium |
≤0.01 |
≤0.02 |
—— |
|
(Fe) iron |
≤0.0005 |
≤0.001 |
≤0.005 |
|
(以Pb计) heavy metal |
≤0.0005 |
≤0.001 |
≤0.005 |
|
(As)arsenic |
—— |
—— |
≤0.0005 |
|
sodium bicarbonate |
—— |
—— |
eligible |
Uses: Used as an analytical reagent, such as for the benchmark reagent, decomposition of the sample melting agent, precipitant, buffer, emission spectrometry analysis of the sample volatile agent. Also used in the preparation of sodium battery materials, sodium salt, pharmaceutical excipients, sodium glass and film printing and washing, optical glass and so on.
Packing: Inner plastic and outer braided, kraft paper bag or cardboard drum, net weight 25kg.