Par indicator AR
4-(2-Pyridylazo)-resorcinol monosodium salt

Product Code.
01923
Grade
AR
Purity
99%
CAS No.
16593-81-0
Molecular Formula
C11H8N3NaO2.H2O
Molecular Weight
255.21
H.S.Code
2933.39900
Shelf Life
60 Months

Physical Properties

Physical state at 20 °C
Solid
Colour
Orange crystalline
Odour
Odorless
Solubility in water [% weight]
Soluble in water

Packaging

Specification

Appearance
An orange to brown crystalline powder
Assay
Min 99.0%
Water (by KF)
7 - 8%
Suitability (as indicator)
Passes test

Safety Information and Hazard Symbols

Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338