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Ammonium Purpurate AR
C.I.No. 56085 5,5-Nitrilodibarbituric acid monoammonium salt, Murexide

Product Code.
00236
Grade
AR
Purity
CAS No.
3051-09-0
Molecular Formula
C8H8N6O6
Molecular Weight
284.19
H.S.Code
2933.59900
Shelf Life
60 Months

Physical Properties

Physical state at 20 °C
Solid
Colour
Red powder
Odour
Odorless
Melting point/ Freezing point [°C]
> 300 °C
Solubility in water [% weight]
Slight (0.1-1%)

Packaging

Specification

Appearance
Dark Red to Purple Powder
Identity (IR)
Conforms to structure
suitability (as indicator in complexometric titration)
Passes test
Absorption maxima (0.001% in water)
About 521nm
Specific absorptivity A1%/1cm (water; 521nm)
Min 300
Sulphated ash
Max 1.0%
Loss on drying (at 105°C)
Max 2.0%

Safety Information and Hazard Symbols