产品编码 : 2202001
Chemical Name : Sodium Carbonate
Other Name : Sodium carbonate solution
CAS No. : 497-19-8
分子量 : 105.99
分子式 : CH2O3.2Na
EINECS : 207-838-8
海关编码 : 2836200000
1、Chemical Name: Sodium Carbonate
2、Molecular Formula:CNa2O3
3、Molecular Weight: 105.99
4、CAS: 497-19-8
5、Character: Anhydrous is a white crystalline powder, relative density 2.53, melting point 851 ℃, heated to 400 ℃ decomposition. Insoluble in ethanol, soluble in water, dissolved when heat, solution is strongly alkaline. Easily deliquescence agglomeration in the air, absorb CO2 and produce sodium bicarbonate. Monohydrate as a fine white crystal or powder, the relative density of 1.55. Stable at room temperature and heated to lose crystal water becomes anhydrous at 100 ℃. Decahydrate colorless transparent crystallization temperature 34 ℃, relative density (20 ℃) 1.44, in the air easily weathered.
6、Usage: It is one of the important chemical raw materials used in making chemicals, cleaning agents, detergents, but also for photography and manufacturing pharmaceuticals products.
7、Packing: It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
8、Storage and Transport: It should be stored in a dark, dry and ventilative warehouse, kept away from water and moisture; unloaded with care to avoid damage. Furthermore, it must be stored separately from poisonous substances.
质量指标 |
Specification |
GB 1886-92 |
总碱量(以Na2CO3计)≥ |
Content (Na2CO3) |
99.2% |
氯化物(以NaCl计)≤ |
NaCl |
0.7% |
铁(以Fe2O3计) ≤ |
Fe |
0.004% |
水不溶物≤ |
Water insoluble matter |
0.04% |
灼烧失重≤ |
loss on ignition |
0.8% |
砷(以As计)≤ |
As |
0.0002% |
重金属(以Pb计)≤ |
Pb |
0.001% |
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