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13433

Sigma-Aldrich

碳酸氢钠

puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E500, 99.0-100.5%, powder

同義詞:

碳酸氢钠, 小苏打

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About This Item

線性公式:
NaHCO3
CAS號碼:
分子量::
84.01
Beilstein:
4153970
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
eCl@ss:
38020213
PubChem物質ID:
NACRES:
NA.21

等級

puriss.

品質等級

化驗

99.0-100.5%

形狀

powder

品質

meets analytical specification of Ph. Eur., BP, USP, FCC, E500

雜質

ammonia (NH3), in accordance
organic volatile impurities, complies
residual solvents, complies
water-insoluble matter, complies
≤0.002% ammonium (NH4), complies

損耗

≤0.2% loss on drying (silica gel)

pH值

≤8.6 (20 °C, 5%)

pKa (25 °C)

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

密度

2.16 g/mL at 25 °C (lit.)

負離子痕跡

carbonate (CO32-): in accordance
chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤100 mg/kg

正離子痕跡

Al: ≤0.5 mg/kg
As: ≤2 mg/kg
Ca: ≤100 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
K: ≤100 mg/kg
Pb: ≤2 mg/kg

適合性

complies for appearance of solution

SMILES 字串

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

InChI

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

InChI 密鑰

UIIMBOGNXHQVGW-UHFFFAOYSA-M

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應用

碳酸氢钠可能参与基于二氧化硅的整体柱的制造,可用于毛细管电色谱。也可用于通过离子交换置换色谱法维持色谱柱的 pH 值,用于蛋白质的分离。

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


分析證明 (COA)

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