Ortho-Nitro-Aniline-Para-Sulfonic Acid (ONAPSA)
| PRODUCT NAME |
ONAPSA FREE ACID |
| CHEMICAL NAME |
2 NITRO ANILINE 4 SULPHONIC ACID OR 3 NITRO 4 AMINO BENZENE SULPHONIC ACID |
| CAS NO. |
82324-60-5 |
| EMPIRICAL FORMULA |
C 6 H6O5N2S |
| MOLECULAR WEIGHT |
218 |
| STRUCTURAL FORMULA |
 |
Physical Properties
| FORM SUPPLIED |
DRY POWDER / WET CAKE |
| SALES BASIS |
REAL CONTENT ON 100% BASIS |
| APPEARANCE |
LIGHT YELLOW TO REDDISH YELLOW |
Chemical Properties
| ASSAY |
85% (MIN) / 70 % WET |
| INSOLUBLES |
0.3 % MAX |
| SALT CONTENT [NaCl] |
4 % MAX |
| Na2SO4 CONTENT |
1% MAX |
| SOLUBILITY IN WATER |
180 GPL MIN |
| IRON CONTENT |
100 PPM MAX |
| MOISTURE CONTENT |
1.0 % MAX |
