HYDROQUINONE
HYDROQUINONE AR
Short Name: HYDROQUINONE
Synonym: Quinol
Basic Details
Article No.
LG2474
Grade
AR
Purity
99%
CAS No.
123-31-9
HS Code
2907.2200
Shelf Life
36 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
White powder
pH value
3.7
Melting point/ Freezing point [°C]
172 - 175 °C
Auto-ignition temperature [°C]
499 °C
Flash point [°C]
165 °C
Boiling point [°C]
285 °C
Vapour pressure mm/Hg
1 mmHg at 132 °C
Vapour density
3.8
Density [g/cm3]
1.332
Solubility in water [% weight]
Soluble in water
Partition coefficient Log Pow octanol /water at 20°C
0.59
Chemical Specifications
Appearance
White crystalline powder
Assay
Min 99%
Melting point
170 - 174 deg C
Insoluble matter
Max 0.005%
Sulphated ash
Max 0.02%
Sulphate (SO4)
Max 0.02%
Copper (Cu)
Max 0.01%
Iron (Fe)
Max 0.001%
Lead (Pb)
Max 0.001%
Catechol
Max 0.02%
Safety Information & Hazard Symbols
Symbol
GHS05, GHS07, GHS08, GHS09
Signal Word
Danger
UN No.
3077
IMCO Class No.
9
Packing Group
III
Hazardous Statement
H302-H317-H318-H341-H351-H400
Precaution Statement
P273-P280-P305 + P351 + P338