ChemicalBook CAS DataBase List 6992-11-6

6992-11-6

Name	Pigment Brown 25
CAS	6992-11-6
EINECS(EC#)	230-258-1
Molecular Formula	C24H15Cl2N5O3
MDL Number	MFCD19442857
Molecular Weight	492.31
MOL File	6992-11-6.mol

Chemical Properties

Boiling point	597.6±50.0 °C(Predicted)
density	1.58
pka	11.41±0.30(Predicted)
Water Solubility	17μg/L at 23℃
LogP	1.15 at 23℃
EPA Substance Registry System	2-Naphthalenecarboxamide, 4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy- (6992-11-6)

Safety Data

TSCA	TSCA listed
REACH Registrations	Active

Hazard Information

Uses

C.I. Pigment brown 25 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.

Flammability and Explosibility

Notclassified

Properties and Applications

TEST ITEMS	SPECIFICATION
APPEARANCE	BROWN POWDER
SHADE	BLUISH
HEAT RESISTANCE	300 °C min
LIGHT FASTNESS	8
ACID RESISTANCE	5
ALKALI RESISTANCE	5
FASTNESS TO BLEEDING	5
OIL ABSORPTION	40-50%
SPECIFIC SURFACE	27 m ² /g
DENSITY	1.60 g/cm ³
RESIDUE ON 80 MESH	5.0% max
WATER SOLUBLE	1.0% max
VOLATITE 105 °C	1.0% max
TINTING STRENGTH	100-105 %

References

[1] Gürses A, A??ky?ld?z M, Güne? K, et al. Dyes and pigments: their structure and properties[J]. Dyes and pigments, 2016: 13-29.

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