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791768

Sigma-Aldrich

无水碳酸钠

anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%

别名:

碳酸二钠盐, 纯碱, 苏打灰：

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About This Item

线性分子式:
Na2CO3
CAS号:
497-19-8
分子量:
105.99
Beilstein:
4154566
EC 号:
207-838-8
MDL编号:
MFCD00003494
UNSPSC代码:
12352302
NACRES:
NA.21
方案:
≥99.5%
等级:
ACS reagent
anhydrous
表单:
powder

等级

ACS reagent
anhydrous

质量水平

100

Agency

suitable for EPA 300

产品线

Redi-Dri™

方案

≥99.5%

表单

powder

质量

free-flowing

杂质

≤0.005% silica
≤0.01% insolubles

缺失

≤1.0% loss on heating

pH值（酸碱度）

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

痕量阴离子

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
sulfur compounds (as SO42-): ≤0.003%

痕量阳离子

Ca: ≤0.03%
Fe: ≤5 ppm
K: ≤0.005%
Mg: ≤0.005%
heavy metals: ≤5 ppm (by ICP-OES)

SMILES字符串

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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相关类别

应用


  • Denitrification mechanism of NaOH in the presence of carbon.: Explores the interaction between sodium carbonate and other chemicals in environmental applications, particularly focusing on denitrification processes important for water treatment (Li et al., 2005).

  • Evaluation of capillary electrophoresis for determining the concentration of dissolved silica in geothermal brines.: Discusses the role of sodium carbonate in modifying sample pH for capillary electrophoresis, essential for accurate measurement of silica in complex geothermal fluids (Santoyo et al., 2005).

生化/生理作用

缓冲液成分，可用于去除外周膜蛋白。

法律信息

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

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象形图

Exclamation mark
GHS07

警示用语：

Warning

危险声明

H319

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

从最新的版本中选择一种：

分析证书(COA)

Lot/Batch Number
0000323227
0000279433
SLCQ0266
SLCK2847
SLCJ6253

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Redi-Dri™ – The World of Free-flowing Hygroscopic Products

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

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