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文件

S6014

碳酸氢钠

Name: 碳酸氢钠
Brand: SIGALD

ACS reagent, ≥99.7%

别名:

碳酸氢钠, 小苏打

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About This Item

线性分子式:

NaHCO₃

CAS号:

144-55-8

分子量:

84.01

Beilstein:

4153970

EC 号:

205-633-8

MDL编号:

MFCD00003528

UNSPSC代码:

12352302

PubChem化学物质编号:

329824559

NACRES:

NA.21

等级

ACS reagent

质量水平

300

Agency

suitable for EPA 1621
suitable for EPA 300

检测方案

≥99.7%
99.7-100.3%

形式

powder

杂质

≤0.015% Insoluble matter

pKa (25 °C)

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

密度

2.16 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl^-): ≤0.003%
phosphate (PO₄^3-): ≤0.001%
sulfur compounds (as SO₄^2-): ≤0.003%

痕量阳离子

Ca: ≤0.02%
Fe: ≤0.001%
K: ≤0.005%
Mg: ≤0.005%
NH₄⁺: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)

SMILES字符串

[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

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一般描述

碳酸氢钠，也被称为小苏打，通常被用作温和的碱来中和酸性溢出，调节pH值，并抵消体内某些酸性毒素的影响。当与醋或柠檬汁等酸性成分反应时，它还会产生CO_₂ ，从而起到发酵剂的作用。

应用

碳酸氢钠用作

：在合成1,2:5,6-二- o -环己基- d -甘露醇和2,3-环己基- d -甘油醛的过程中，作为温和碱来中和反应混合物。
沉淀剂，在共沉淀法中合成γ -氧化铝（γ-Al2O3）催化剂过程中甲醇脱水反应生成二甲醚。
为设计高性能薄膜复合正向渗透（TFC-FO）膜，研究了多孔聚醚砜支撑层形成过程中提高基质孔隙度的成孔剂和CO2源。

Contactless conductivity sensor employing moist paper as absorbent for in-situ detection of generated carbon dioxide gas.: This study utilizes sodium bicarbonate in a novel approach for the development of a contactless conductivity sensor. The sensor uses moist paper to absorb CO2 gas generated from sodium bicarbonate, demonstrating its potential for environmental monitoring and analytical applications (Sonsa-Ard et al., 2020).

其他说明

参见Redi-Dri^™ 产品列表792519

法律信息

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

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

分析证书(COA)

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Sodium bicarbonate: A review and its uses in dentistry

Sathyasree M, et al.

Indian Journal of Dental Research, 29, 672-677 (2018)

A publication of reliable methods for the preparation of organic compounds.

Hiroki A, et al.

Organic Syntheses, 157 (2011)

Investigation of different precipitating agents effects on performance of $\gamma$-Al2O3 nanocatalysts for methanol dehydration to dimethyl ether

Seyyed Yaghoob H, et al.

Journal of Industrial and Engineering Chemistry, 20, 4421-4428 (2014)

Reduction of the structure parameter of forward osmosis membranes by using sodium bicarbonate as pore-forming agent

Alireza S, et al.

Langmuir, 37, 7591-7599 (2021)

Effect of different bicarbonates as leavening agents in combination on product characteristics of cookies and cake

Savita S, et al.

Chemical Science Review and Letters, 6, 439-445 (2017)

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