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223484

Sigma-Aldrich

无水碳酸钠

ACS reagent (primary standard), anhydrous, 99.95-100.05% dry basis

同義詞:

碳酸二钠盐, 纯碱, 苏打灰:

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About This Item

線性公式:
Na2CO3
CAS號碼:
分子量::
105.99
Beilstein:
4154566
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
eCl@ss:
38020205
PubChem物質ID:
NACRES:
NA.21
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等級

ACS reagent (primary standard)
anhydrous

品質等級

化驗

99.95-100.05% dry basis

形狀

powder

雜質

≤0.005% silica
≤0.01% insolubles

損耗

≤1.0% loss on heating

pH值

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

負離子痕跡

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

正離子痕跡

Ca: ≤0.02%
Fe: ≤5 ppm
K: ≤0.005%
Mg: ≤0.004%
heavy metals: ≤5 ppm (by ICP-OES)

SMILES 字串

O=C(O[Na])O[Na]

InChI

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

InChI 密鑰

CDBYLPFSWZWCQE-UHFFFAOYSA-L

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一般說明

碳酸钠是一种水溶性弱碱。[1]其水溶液具有摄取二氧化碳的能力。[2]它还能催化污泥转化为液体燃料。[3]
碳酸钠(苏打)是一种白色盐。它可以通过电解熔融氢氧化钠或氯化钠合成。[4]

應用

碳酸钠可用于以下研究:
  • Folin-Ciocalteu 法测定葡萄酿酒产品的总多酚指数。[5]
  • 配制 ELISA(酶联免疫吸附试验)包被缓冲液。[6]
  • 用于 IGF-I 激酶受体活化试验 (KIRA) 的抗体包被缓冲液的制备。[7]
碳酸钠可能作为还原剂用于氧化石墨烯分散体制备具有良好电性能的石墨烯片。[8]
也可用于以下合成程序:
  • 联二芳经钯催化的苯硼酸与卤代芳烃的交叉偶联反应。[9]
  • 在水介质中通过醛和酮的羟醛缩合反应合成查尔酮和氮杂查尔酮。[10]
  • 通过铜催化功能化炔烃的烯丙基化。[1]

生化/生理作用

缓冲液成分,可用于去除外周膜蛋白。

象形圖

Exclamation mark

訊號詞

Warning

危險聲明

危險分類

Eye Irrit. 2

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)

Lot/Batch Number

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存取文件庫

A green and efficient method to produce graphene for electrochemical capacitors from graphene oxide using sodium carbonate as a reducing agent.
Jin Y, et al.
Applied Surface Science, 268, 541-546 (2013)
Efficient and clean aldol condensation catalyzed by sodium carbonate in water.
Zhang Z, et al.
Chemistry Letters (Jpn), 32(10), 966-967 (2003)
Liquid fuel production from sewage sludge by catalytic conversion using sodium carbonate.
Yokoyama S-Y, et al.
Fuel: The Science and Technology of Fuel and Energy, 66(8), 1150-1155 (1987)
Copper catalyzed regioselective coupling of allylic halides and alkynes promoted by weak inorganic bases.
Bieber LW and da Silva MF
Tetrahedron Letters, 48(40) , 7088-7090 (2007)
The palladium-catalyzed cross-coupling reaction of phenylboronic acid with haloarenes in the presence of bases.
Miyaura N, et al.
Synthetic Communications, 11(7), 513-519 (1981)

Questions

1–2 of 2 Questions  
  1. 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

      Helpful?

  2. 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

      Helpful?

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