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Merck

75688

Sigma-Aldrich

草酸

puriss. p.a., anhydrous, ≥99.0% (RT)

别名:

Ethanedioic acid

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About This Item

线性分子式:
HO2CCO2H
CAS号:
分子量:
90.03
Beilstein:
385686
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.21
价格与库存信息目前不能提供

等级

anhydrous
puriss. p.a.

质量水平

蒸汽密度

4.4 (vs air)

蒸汽压

<0.01 mmHg ( 20 °C)

方案

≥99.0% (RT)

表单

crystals

杂质

≤0.001% total nitrogen (N)
≤1% water

灼烧残渣

≤0.01% (as SO4)

mp

189.5 °C (dec.) (lit.)

痕量阴离子

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤350 mg/kg

痕量阳离子

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤35 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

官能团

carboxylic acid

SMILES字符串

OC(=O)C(O)=O

InChI

1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)

InChI key

MUBZPKHOEPUJKR-UHFFFAOYSA-N

基因信息

human ... SRC(6714)

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相关类别

一般描述

草酸是二羧酸。它与铁(II)盐水溶液反应,生成草酸铁(III)。[1]

应用

草酸可用于制备以下物质:
  • 草酸铵[2]
  • 草酸钙[3]
  • 二氧化氯(ClO2[4]
  • 草酸氢钾[5]

象形图

CorrosionExclamation mark

警示用语:

Danger

危险声明

危险分类

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1

储存分类代码

11 - Combustible Solids

WGK

WGK 1

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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访问文档库

Eagleson M.
Concise Encyclopedia Chemistry, 555-555 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 66-66 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 164-164 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 889-889 (1994)
Xianlai Zeng et al.
Journal of hazardous materials, 295, 112-118 (2015-04-22)
With the booming of consumer electronics (CE) and electric vehicle (EV), a large number of spent lithium-ion battery (LIBs) have been generated worldwide. Resource depletion and environmental concern driven from the sustainable industry of CE and EV have motivated spent

Questions

1–2 of 2 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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