THIOUREA
THIOUREA AR
Masking and colorimetric reagent for various metal ions precipitation reagent for lead,cadmium, selenium and tellurium.
Short Name: THIOUREA
Synonym: Sulfourea; Thiocarbamide
Basic Details
Article No.
LG4544
Grade
AR
Purity
99%
CAS No.
62-56-6
HS Code
2930.9010
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
White crystalline
Odour
Odorless
pH value
5 - 7
Melting point/ Freezing point [°C]
170 - 176 °C
Density [g/cm3]
1.045
Solubility in water [% weight]
137 g/l at 20 °C
Partition coefficient Log Pow octanol /water at 20°C
-0.92
Chemical Specifications
Appearance
White crystalline powder
Assay
Min 99%
Melting point
174 - 178 deg C
Insoluble matter in water
Max 0.005%
Sulphated ash
Max 0.05%
Sulphate (SO4)
Max 0.01%
Iron (Fe)
Max 0.0005%
Loss on drying (at 105°C)
Max 0.5%
Sensitivity for Bismuth
Passes test
Safety Information & Hazard Symbols
Symbol
GHS07, GHS08, GHS09
Signal Word
Warning
UN No.
3077
IMCO Class No.
9
Packing Group
III
Hazardous Statement
H302-H351-H361d-H411
Precaution Statement
P273-P281