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文件

791768

无水碳酸钠

Name: 无水碳酸钠
Brand: SIGALD

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

等级

ACS reagent
anhydrous

质量水平

100

Agency

suitable for EPA 300

产品线

Redi-Dri^™

检测方案

≥99.5%

形式

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 (PO₄^3-): ≤0.001%
sulfur compounds (as SO₄^2-): ≤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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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

象形图

GHS07

警示用语：

Warning

危险声明

H319

预防措施声明

P264 - P280 - P305 + P351 + P338 - P337 + P313

危险分类

Eye Irrit. 2

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

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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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