| No. |
Characteristic |
Requirement |
| |
Class |
Fluoran |
| |
Total color |
90% min. |
| 1) |
Chemical Name |
Tetrachlorotetrabromofluroscein |
| 2) |
Sum of volatile matter (at 135C) and halides and sulfates (calculated
as sodium salts) |
<10% |
| 3) |
Insoluble matter (alkaline solution) |
<0.5% |
| 4) |
a) Tetrachlorophthalic acid |
<1.2% |
| b) Brominated resorcinol |
<0.4% |
| c) 2,3,4,5 - Tetrachloro-6-(3, 5-dibromo-2, 4-dihydroxybenzoyl)
benzoic acid |
<0.7% |
| d) 2',4',5',7' -Tetrabromo-4,5,6,7- tetrachlorofluorscein,
ethyl ester |
<2% |
| e) Lower halogenated subsidiary colors |
<4% |
| 5) |
Lead (as Pb) |
<20 ppm |
| 6) |
Arsenic (as As) |
<3 ppm |
| 7) |
Mercury (as Hg) |
<1 ppm |
| 8) |
Chemical Formula |
C20H4O5Cl4Br4 |
| 9) |
Uses |
In Ester & Hydrocarbon Solvents Cellulose and ester Varnishes |
| 10) |
Hue |
Pink (In Acetone) |
