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Merck
CN

33506

Sigma-Aldrich

草酸 二水合物

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5% (manganometric)

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别名:
乙二酸
线性分子式:
HO2CCO2H · 2H2O
CAS号:
分子量:
126.07
Beilstein:
3679436
EC 号:
MDL编号:
UNSPSC代码:
12352100
eCl@ss:
39021701
PubChem化学物质编号:
NACRES:
NA.21

等级

ACS reagent
puriss. p.a.

质量水平

Agency

USP/NF
reag. ISO
reag. Ph. Eur.

蒸汽密度

4.4 (vs air)

蒸汽压

<0.01 mmHg ( 20 °C)

检测方案

≥99.5% (manganometric)

形式

crystals

杂质

foreign organic matter, in accordance
≤0.001% total nitrogen (N)

灼烧残渣

≤0.01% (as SO4)

mp

104-106 °C (lit.)

痕量阴离子

chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤20 mg/kg

痕量阳离子

Ca: ≤5 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤2 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
heavy metals: ≤5 ppm (by ICP-OES)

SMILES字符串

[H]O[H].[H]O[H].OC(=O)C(O)=O

InChI

1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2

InChI key

GEVPUGOOGXGPIO-UHFFFAOYSA-N

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相关类别

一般描述

草酸二水合物晶体是单斜晶体,并显示出空间群 P21/n。每个晶胞包含两个分子。已评估了草酸二水合物中的 13C 化学位移屏蔽张量。

应用

草酸二水合物已用于制备草酸酯前体,其=可用于合成氧化锌纳米粉。它可用于制备液相色谱流动相中的 0.01M 草酸溶液。

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

WGK

WGK 1

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves


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