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31437-M

碳酸氢钠

Name: 碳酸氢钠
Brand: SIAL

puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99.7%

别名:

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:

144-55-8

分子量:

84.01

UNSPSC Code:

12352300

NACRES:

NA.21

PubChem Substance ID:

329753766

EC Number:

205-633-8

Beilstein/REAXYS Number:

4153970

MDL number:

MFCD00003528

Assay:

≥99.7%

Form:

powder

Solubility:

H₂O: 0.5 g/10 mL, clear, colorless, water: soluble 50 g/L

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属性

agency

reag. Ph. Eur.

grade

ACS reagent, puriss. p.a.

assay

≥99.7%

form

powder

impurities

≤0.003% S-compounds (as SO₄), ≤0.015% in water insoluble matters, ≤5 mg/kg ammonium (NH₄), ≤50 mg/kg I red. matters (as SO₂)

pH

≤8.6 (20 °C, 5%)

pKa (25 °C)

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

solubility

H₂O: 0.5 g/10 mL, clear, colorless, water: soluble 50 g/L

density

2.16 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤0.003%, phosphate (PO₄^3-): ≤10 mg/kg

cation traces

As: ≤0.0002%, Ca: ≤0.01%, Cd: ≤0.0005%, Co: ≤0.005%, Cu: ≤0.0005%, Fe: ≤0.0005%, K: ≤0.005%, Mg: ≤0.005%, Ni: ≤0.005%, Pb: ≤0.0005%, Zn: ≤0.0005%, heavy metals: ≤5 mg/kg (by ICP-OES)

suitability

complies for appearance of solution

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

说明

General description

Sodium bicarbonate is widely used as a physiological buffer. The pKa for bicarbonate ↔ carbonic acid reaction is 6.37. The pKa for bicarbonate ↔ carbonate reaction is 10.25.

Application

Sodium bicarbonate may be used to maintain 7.4pH in Iscove′s modified Dulbecco′s medium for growth of murine hybridoma cell culture. It may be employed as a component of RPMI-1640 liquid medium in a study.

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存储类别

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c