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重要文件

S6014

Sigma-Aldrich

碳酸氢钠

Sodium bicarbonate

ACS reagent, ≥99.7%

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
PubChem物質ID:
NACRES:
NA.21
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等級

ACS reagent

agency

suitable for EPA 1621
suitable for EPA 300

化驗

≥99.7%
99.7-100.3%

形狀

powder

雜質

≤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.)

負離子痕跡

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

正離子痕跡

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

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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一般說明

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 ,从而起到发酵剂的作用。 [1] [2]

應用


  • 采用湿纸作为吸收剂的非接触式电导率传感器现场检测产生的二氧化碳气体。:研究利用碳酸氢钠开发新型非接触式电导率传感器。该传感器使用湿纸吸收碳酸氢钠产生的CO2气体,展示了其在环境监测和分析应用方面的潜力(Sonsa-Ard et al., 2020)。

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。[3]
  • 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。[4]
  • 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。 [5]

法律資訊

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

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


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分析證明 (COA)

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存取文件庫

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)
Sodium bicarbonate: A review and its uses in dentistry
Sathyasree M, et al.
Indian Journal of Dental Research, 29, 672-677 (2018)
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)

相關內容

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

Questions

1–3 of 3 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. 12kg 시약의 용기 크기가 궁금합니다. (가로, 세로, 높이)

    1 answer
    1. The 12 kg size of this product is packaged in a poly bag, which is placed in a 20 L HDPE drum. The drum has a height of 494 mm and a diameter of 285.75 mm.

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Reviews

Active Filters

  1. The Netherlands, Deventer
    • Reviews 2
    • Votes 0
    4 out of 5 stars.

    Order of 4x 5kg sodium carbonate

    Fast delivery. Maybe the 5 kg can put in a smaller container. This bucket needs a lot off space in our chemical cabinet.

    Helpful?

  2. 1 Ratings-Only Review

我們的科學家團隊在所有研究領域都有豐富的經驗,包括生命科學、材料科學、化學合成、色譜、分析等.

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