SPADNS
SPADNS AR
Short Name: SPADNS
Synonym: 2(p-Sulphophenylazo)1,8-dihydroxynaphthalene- 3,6- disulphonic acid trisodium salt
Basic Details
Article No.
LG4321
Grade
AR
Purity
CAS No.
23647-14-5
HS Code
2927.0090
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
Brownish crystalline
Solubility in water [% weight]
Soluble in water
Chemical Specifications
Appearance
Brownish crystalline powder
Absorption maxima at pH 7.0
505 - 510 nm
Absorptivity (A 1%/1cm; at λmax)
Min 380
Loss on drying (at 105°C)
Max 10%
Suitability (as metal indicator)
Passes test
Safety Information & Hazard Symbols
Symbol
GHS07
Signal Word
Warning
Hazardous Statement
H315-H319-H335
Precaution Statement
P261-P305 + P351 + P338