Items
|
Specification
|
Specification
|
Specification
|
Appearance
|
White powder
|
Colorless translucent crystals
|
colorless liquid
|
Purity
|
95%; 98%
|
≥98%
|
20%;25%;50%
|
Density(20ºC)
|
1.039~1.046g/cm3
|
1.039~1.046g/cm3
|
1.039~1.046g/cm3
|
PH value(20ºC)
|
4.0~6.0
|
4.0~6.0
|
4.0~6.0
|
Absorbance(237nm)
|
≥400
|
≥400
|
≥400
|
Absorbance(237nm/222nm)
|
1.2~1.6
|
1.2~1.6
|
1.2~1.6
|
Absorbance 1% 236nm
|
≥400
|
|
|
Absorbance (236/220nm)
|
1.2-1.6
|
|
|