send us an inquiry
LC1801 Diphenylamine-4-sulfonic acid barium salt
redox indicator


Order number Packaging Quantity Price €
AC28801 Glass bottle 5 g 55.35


Product information
Synonyms 4-Anilinobenzene sulfonic acid barium salt, Barium diphenylaminesulfonate
Hill Formula C24H20BaN2O6S2
HS Code 2921 44 00
EC number 228-278-0
Molar mass 633.88 g/mol
EC index number 056-002-00-7
CAS number 6211-24-1


Chemical and physical data
Solubility (20 °C) soluble
Melting point 300 °C
Molar mass 633.88 g/mol
Bulk density 220 kg/m3
pH value ca.5.9 (10 g/l, H2O, 20 °C) (slurry)


Safety information according to GHS
Hazard Statement(s) H332: Harmful if inhaled.
H302: Harmful if swallowed.
Signal Word Warning
Hazard Pictogram(s)
Storage class 10 – 13 Other liquids and solids
WGK WGK 3 highly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.


Safety information
R Phrase R 20/22
Harmful by inhalation and if swallowed.
S Phrase S 28
After contact with skin, wash immediately with plenty of soap and water.
Categories of danger harmful
Hazard Symbol Harmful


Transport information
Declaration (transport by sea) IMDG-Code UN 1564 BARIUM COMPOUND, N.O.S., 6.1, III
Declaration (transport by air) IATA-DGR UN 1564 BARIUM COMPOUND, N.O.S., 6.1, III



Identity (IR-spectrum) passes test
Absorption maximum λ max (water) 290 – 295 nm
Spec. Absorptivity A 1%/1cm (λ7m7ax; 0.001 %; water; calculated on dried substance) 600 – 700
Loss on drying (105 °C) ≤ 5 %
Suitability as redox indicator passes test