S P E C I F I C A T I O N S

ACID BLUE 29

Synonyms:				Mordant Blue 82, C.I.20460

CAS No:				5850-35-1

Chemical Formula:			C22H14N6O9S2Na2

Formula Weight:			616.50

Appearance:				Dark brown to navy blue or black powder

Identification:			Conforms to structure and standard

UV-VIS				E@ 599-605nm	NLT 15,000
(0.015 -0.024 g/l, H2O)		E@ 388-394nm	NLT   3,000
					E@ 308-314nm	NLT   8,000
					E@ 230-236nm	NLT   9,000

Solubility:				Opaque, dark blue solution
(0.1-0.14% in H2O)

Effective: 07/15/11