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Merck
CN

SX0320

碳酸氢钠

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

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小苏打

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关于此项目

线性分子式:
NaHCO3
化学文摘社编号:
分子量:
84.01
EC Index Number:
205-633-8
UNSPSC Code:
12352302
Beilstein/REAXYS Number:
4153970
MDL number:
eCl@ss:
38020213
Assay:
99.7-100.3% dry basis
Grade:
ACS reagent
Form:
powder
Solubility:
96 g/L
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grade

ACS reagent

Quality Level

agency

meets USP/NF

assay

99.7-100.3% dry basis

form

powder

impurities

≤0.015% Insoluble matter

pH

8.6 (20 °C, 50 g/L in H2O)

pKa (25 °C)

(1) 6.37, (2) 10.25 (carbonic acid)

mp

270 °C (decomposition)

solubility

96 g/L

density

2.16 g/mL at 25 °C (lit.)

anion traces

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

cation traces

Ca: ≤0.02%, Fe: ≤0.001%, K: ≤0.005%, Mg: ≤0.005%, NH4+: ≤5 ppm, heavy metals (as Pb): ≤5 ppm

shipped in

ambient

storage temp.

room temp

SMILES string

[Na+].OC([O-])=O

InChI

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

InChI key

UIIMBOGNXHQVGW-UHFFFAOYSA-M

Application

符合测试 USP/NF 专著 GR ACS 的试剂规范

Analysis Note

铵(NH4):最高 5ppm
纯度(基于干燥基):99.7-100.3%
钙(Ca):最高 0.02%
氯化物(Cl):最高 0.003%
重金属(以铅计):最高 5ppm
不溶物:最高 0.015%
铁(Fe):最高 0.001%
镁(Mg):最高 0.005%
磷酸盐(PO4):最高 0.005%
钾(K):最高 0.005%
硫化合物(以 SO4 计):最高 0.003%


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存储类别

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

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