草酸二水合物，Oxalic acid dihydrate [OAD]；Suprapur®, ≥99.5% (calculated as dihydrate, alkalimetric)

等级

for inorganic trace analysis

质量水平

100

蒸汽压

0.000312 hPa ( 25 °C)

测定

≥99.5% (calculated as dihydrate, alkalimetric)

形式

solid

效能

375 mg/kg LD₅₀, oral (Rat)

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

water: >100 g/L at 25 °C

密度

1.65 g/cm³ at 20 °C

堆积密度

813 kg/m³

痕量阴离子

chloride (Cl^-): ≤5000 ppb
phosphate (PO₄^3-): ≤500 ppb
sulfate (SO₄^2-): ≤2000 ppb

痕量阳离子

Ag: ≤10 ppb
Al: ≤20 ppb
As: ≤1.0 ppb
Au: ≤1.0 ppb
Ba: ≤100 ppb
Be: ≤1.0 ppb
Bi: ≤1.0 ppb
Ca: ≤100 ppb
Cd: ≤50 ppb
Co: ≤5 ppb
Cr: ≤10 ppb
Cu: ≤5 ppb
Fe: ≤50 ppb
Ga: ≤1.0 ppb
Ge: ≤1.0 ppb
In: ≤1.0 ppb
K: ≤200 ppb
Li: ≤5 ppb
Mg: ≤20 ppb
Mn: ≤5 ppb
Mo: ≤5 ppb
Na: ≤100 ppb
Ni: ≤10 ppb
Pb: ≤10 ppb
Pt: ≤1.0 ppb
Sb: ≤1.0 ppb
Sn: ≤5 ppb
Sr: ≤100 ppb
Ti: ≤5 ppb
Tl: ≤1.0 ppb
U: ≤1.0 ppb
V: ≤10 ppb
Zn: ≤20 ppb

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