Pigment Red 81

CAS NO.：12224-98-5
Empirical Formula: C28H31N2O3.xUnspecified
Molecular Weight: 2261.98
MDL number: MFCD00281165
EINECS: 235-424-7
SAFETY DATA SHEET (SDS)
Update Date: 2023-05-04 17:34:32

What is Pigment Red 81?

Definition

ChEBI: Rhodamine 6G(1+) is a cationic fluorescent dye derived from 9-phenylxanthene. It has a role as a fluorochrome. It is a xanthene dye and an organic cation.

General Description

Dark pink powder.

Air & Water Reactions

Slightly soluble in water.

Fire Hazard

Flash point data for Pigment Red 81 are not available. Pigment Red 81 is probably combustible.

Flammability and Explosibility

Not classified

Properties and Applications

TEST ITEMS	SPECIFICATION
APPEARANCE	ROSE POWDER
SHADE	BLUISH
HEAT RESISTANCE	180 °C min
LIGHT FASTNESS	7
ACID RESISTANCE	5
ALKALI RESISTANCE	4
FASTNESS TO BLEEDING	5
OIL ABSORPTION	40-50%
SPECIFIC SURFACE	28 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 %

Properties of Pigment Red 81

Boiling point:	594.02℃[at 101 325 Pa]
Density	1.18[at 20℃]
vapor pressure	0Pa at 25℃
Water Solubility	1g/L at 18.5℃
CAS DataBase Reference	12224-98-5(CAS DataBase Reference)
EPA Substance Registry System	C.I. Pigment Red 81 (12224-98-5)