草酸二水合物，Oxalic acid dihydrate [OAD]；for analysis EMSURE® ACS,ISO,Reag. Ph Eur, 99.5-102.0% (manganometric)

等级

ACS reagent

质量水平

300

Agency

reag. ISO
reag. Ph. Eur.

蒸汽压

0.000312 hPa ( 25 °C)

产品线

EMSURE^®

测定

99.5-102.0% (manganometric)

形式

solid

效能

375 mg/kg LD₅₀, oral (Rat)

杂质

≤50 ppm Insoluble matter

灼烧残渣

≤100 ppm (as sulfate)

pH值（酸碱度）

1.5 (10 g/L in H₂O)

bp

149-160 °C/1013 hPa (decomposition)

mp

98-100 °C

转变温度

flash point 157 °C (decomposition)

溶解性

>100 g/L

密度

1.65 g/cm³ at 20 °C

堆积密度

813 kg/m³

痕量阴离子

chloride (Cl^-): ≤5 ppm
sulfate (SO₄^2-): ≤50 ppm

痕量阳离子

Ca: ≤10 ppm
Fe: ≤2 ppm
N: ≤10 ppm
heavy metals: ≤5 ppm
heavy metals (as Pb): ≤5 ppm

储存温度

2-30°C

InChI

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

InChI key

GEVPUGOOGXGPIO-UHFFFAOYSA-N