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Merck
CN

791768

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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关于此项目

线性分子式:
Na2CO3
化学文摘社编号:
497-19-8
分子量:
105.99
EC Number:
207-838-8
UNSPSC Code:
12352302
NACRES:
NA.21
Beilstein/REAXYS Number:
4154566
MDL number:
MFCD00003494
Assay:
≥99.5%
Grade:
ACS reagent
anhydrous
Form:
powder

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产品名称

无水碳酸钠, anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%

loss

≤1.0% loss on heating

InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L

InChI

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

SMILES string

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

grade

ACS reagent
anhydrous

agency

suitable for EPA 300

product line

Redi-Dri™

assay

≥99.5%

form

powder

quality

free-flowing

impurities

≤0.005% silica
≤0.01% insolubles

pH

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

anion traces

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

cation traces

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

application(s)

PFAS testing

Quality Level

100

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相关类别

Application


  • 碳存在下NaOH的反硝化机理。：探讨了碳酸钠与其他化学物质在环境应用中的相互作用，特别关注了对水处理至关重要的反硝化过程（Li et al., 2005）。

  • 毛细管电泳法测定地热卤水中溶解二氧化硅浓度的评估。：讨论了碳酸钠在改变毛细管电泳样品pH值方面的作用，这对于准确测定复杂地热流体中的二氧化硅至关重要（Santoyo et al., 2005）。

Biochem/physiol Actions

缓冲液成分，可用于去除外周膜蛋白。

Legal Information

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

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

存储类别

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
0000504770
0000460136
0000456828
0000409795
0000323227

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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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