Merck
All Photos(1)

31437

Sigma-Aldrich

碳酸氢钠

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

Synonym(s):
碳酸氢钠, 小苏打
Linear Formula:
NaHCO3
CAS Number:
Molecular Weight:
84.01
Beilstein:
4153970
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.85

等级

ACS reagent
puriss. p.a.

质量水平

200

Agency

reag. Ph. Eur.

测定

≥99.7%

形式

powder

杂质

≤0.0005% ammonium (NH4)
≤0.003% S-compounds (as SO4)
≤0.005% I red. matters (as SO2)
≤0.015% in water insoluble matters

pH值(酸碱度)

≤8.6 (20 °C, 5%)

pKa (25 °C)

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

溶解性

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

密度

2.16 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl-): ≤10 mg/kg
phosphate (PO43-): ≤10 mg/kg

痕量阳离子

As: 2 ppm (MHS-AAS)
Ca: ≤100 ppm
Cd: ≤5 ppm
Co: ≤50 ppm
Cu: ≤5 ppm
Fe: ≤5 ppm
K: ≤50 ppm
Mg: ≤50 ppm
Ni: ≤50 ppm
Pb: ≤5 ppm
Zn: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)

适用性

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

Looking for similar products? Visit Product Comparison Guide

一般描述

碳酸氢钠作为生理缓冲液被广泛使用。碳酸氢盐的 pKa碳酸反应为 6.37。碳酸氢盐的 pKa碳酸盐反应为 10.25。

应用

在 Iscove 改良的 Dulbecco 培养基中,碳酸氢钠可用于维持小鼠杂交瘤细胞培养的 7.4 pH 值。其可用作研究中 RPMI-1640 液体培养基的组分。

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

More Documents

SDS

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service