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PAR INDICATOR AR/ACS
4-(2-Pyridylazo)-resorcinol monosodium salt
MSDS
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COAs
Packings
1 g
(00001)
5 g
(00005)
Print friendly version
Article No.
05115
Grade
AR/ACS
Purity
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
Physical Properties
Physical state at 20 °C
Solid
Colour
Orange crystalline
Odour
Odorless
Solubility in water [% weight]
Soluble in water
Specifications
Appearance
An orange to brown crystalline powder
Clarity of Solution ( 0.1 g/100 ml; water
Not more than a trace of turbidity or insoluble matter should remain
Suitability (as complexometric indicator)
Passes test
Absorption maxima
411 – 415 nm (in distilled water)
Absorptivity
Min 1300 ( 1%/1cm ;distilled water)
Loss on drying (at 110°C; 1 hr)
Max 8.0
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338
Revision Date:
15-Mar-2024
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