|
4-NAPSA (Free Acid)
(4-Nitro-2-Aminophenol-2- Sulfonic Acid) |
|
|
|
Molecular Formula |
C6H6O6N2S |
|
Molecular Weight |
234=N |
|
Description |
Pinkish Brown Colorful |
|
Nature of Material |
Centrifuged Material |
|
Solubility |
Soluble in Di-Alkaline |
|
Strength by U.V. |
85% Min. |
|
Insoluble |
Less than 0.2 |
|
Chlorination |
Absent |
|
PMCB |
Absent |
|
Purity by HPLC |
98% Min |
|
|
PNAOSA
(Para Nitro Aniline Ortho Sulphonic Acid) |
|
 |
|
Molecular Formula |
C6H6O5N2S |
|
Molecular Weight |
218 |
| Purity
By MV |
80% Min. |
| Purity
By HPLC |
98% Min. |
|
Insolubility |
Less than 0.2 % |
| PNCB |
NIL |
| Fe |
Less than 15 PPM |
|
Packing |
50 Kg
Net in HPE Woven Bag |
|
|
4-NAPSA (Na-Salt) (4-Nitro-2-Aminophenol-2- Sulfonic Acid) |
|
|
|
Molecular Formula |
C6H6O6N2S |
|
Molecular Weight |
234 |
| Purity
by MV |
65%
Min. |
| Purity
by HPLC |
98%
Min |
|
Insoluble |
less
than 0.2% |
| Di
Amino |
Nil |
|
Appearance |
Reddish Brown |
|
Packing |
25 Kg
net in HDPE Woven Bag with inside liner |
| Fe |
Less
than 15 PPM |
|
|
PNCB0SA (4-Nitro 4'-Amino Diphenyl Amine 2-Sulfonic
Acid (Pre. F.C. Acid) |
|
Chemical Name |
4-Nitro 4'-Amino Diphenyl Amine 2-Sulfonic Acid
(Pre. F.C. Acid) (91-29-2) |
|
Chemical Formula |
C12H11N3O5S |
|
Molecular Formula |
 |
| CAS No |
91-29-2 |
|
Specification |
Isomer
by HPLC : 0.5 % max. PPDA 1.0% Max. PNCBOSA |
|
Molecular Weight |
309 |
|
Typical Imourity |
Insoluble in Caustic : 0.5 % Max. |
| Purity
by DIAZO |
60.00% |
| End
Use |
DYESTUFF & DYESTUFF INTERMEDIATES |
|
