Merck
CN

13418

Sigma-Aldrich

无水碳酸钠

puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E500, anhydrous, 99.5-100.5% (calc. to the dried substance)

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别名:
碳酸二钠盐, 纯碱, 苏打灰:
线性分子式:
Na2CO3
CAS号:
分子量:
105.99
Beilstein:
4154566
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

质量水平

等级

puriss.

检测方案

99.5-100.5% (calc. to the dried substance)

形式

powder or crystals

质量

meets analytical specification of Ph. Eur., BP, NF, FCC, E500

杂质

alkali hydroxides and bicarbonates, complies
residual solvents
<5 ppm heavy metals (as Pb)

缺失

≤0.5% loss on drying, 300 °C
<0.5% loss on drying, 105°C, 4hrs

pH值(酸碱度)

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

痕量阴离子

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤50 mg/kg

痕量阳离子

As: ≤2 mg/kg
Cu: ≤20 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Pb: ≤4 mg/kg
Pb: >2 ppm
Zn: ≤20 mg/kg

适用性

complies for appearance of solution

储存温度

15-25°C

SMILES string

O=C(O[Na])O[Na]

InChI

1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L

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此商品
900504900505900503
Sodium carbonate puriss., meets analytical specification of Ph.&nbsp;Eur., BP, NF, FCC, E500, anhydrous, 99.5-100.5% (calc. to the dried substance)

Sigma-Aldrich

13418

无水碳酸钠

Essential Grade
Sodium carbonate anhydrous, free-flowing, Redi-Dri&#8482;, ACS reagent (primary standard), 99.95-100.05% dry basis

Sigma-Aldrich

900504

无水碳酸钠

-
Sodium carbonate anhydrous, free-flowing, Redi-Dri&#8482;, ReagentPlus&#174;, &#8805;99.5%

Sigma-Aldrich

900505

无水碳酸钠

-
Sodium carbonate anhydrous, powder or granules, free-flowing, Redi-Dri&#8482;, ACS reagent, &#8805;99.5%

Sigma-Aldrich

900503

无水碳酸钠

-
assay

99.5-100.5% (calc. to the dried substance)

assay

99.95-100.05% dry basis

assay

≥99.5%

assay

≥99.5%

form

powder or crystals

form

powder

form

powder

form

powder or granules

impurities

alkali hydroxides and bicarbonates, complies, residual solvents, <5 ppm heavy metals (as Pb)

impurities

≤0.005% silica, ≤0.01% insolubles

impurities

-

impurities

≤0.005% silica, ≤0.01% insolubles

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

mp

851 °C (lit.)

mp

851 °C (lit.)

mp

851 °C (lit.)

生化/生理作用

缓冲液成分,可用于去除外周膜蛋白。

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

Eye Irrit. 2

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


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