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Lab Chemicals
Complexometric Indicators
PAR INDICATOR
PAR INDICATOR AR
4-(2-Pyridylazo)-resorcinol monosodium salt
Article No.
05115
Grade
AR
Purity
99%
CAS No.
16593-81-0
Molecular Formula
C
1
1
H
8
N
3
NaO
2
.H
2
O
Molecular Weight
255.21
H.S. Code
2933.3990
Shelf Life
60 Months
MSDS
DE
EN
FR
KO
PT
ES
TH
TR
Certificate of Analysis (COAs)
Physical Properties
Physical state at 20 °C
Solid
Colour
Orange crystalline
Odour
Odorless
Solubility in water [% weight]
Soluble in water
Packings
1 g
(00001)
5 g
(00005)
Specifications
Appearance
An orange to brown crystalline powder
Assay
Min 99%
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
Revision Date :
07-Nov-2017