草酸二水合物，Oxalic acid dihydrate [OAD]；ACS reagent, ≥99%

等级

ACS reagent

质量水平

200

蒸汽密度

4.4 (vs air)

蒸汽压

<0.01 mmHg ( 20 °C)

测定

≥99%
99.5-102.5% (ACS specification)

形式

solid

杂质

H₂SO₄, passes test (darkened)
≤0.001% N compounds
≤0.005% insolubles

灼烧残渣

≤0.01%

mp

104-106 °C (lit.)

痕量阴离子

chloride (Cl^-): ≤0.002%
sulfate (SO₄^2-): ≤0.005%

痕量阳离子

Ca: ≤0.001%
Fe: ≤2 ppm
heavy metals: ≤5 ppm (by ICP-OES)

SMILES string

[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

象形图

GHS05,GHS07

警示用语：

Danger

危险声明

H302 + H312 - H318

预防措施声明

P264 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338 - P362 + P364

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