It is used primarily in the manufacture of pigments for printing ink, textiles, paper, paint, rubber, and plastics and as a curing agent for�isocyanate-containing polymers and solid�urethane�plastics.
Synthesis of Organic pigments likePigment Yellow 12 (CIN 21090)Pigment Orange 13 (CIN 21110) etc
| Synonym : 3�3 Dichloro Benzidine Di Hydrochloride | Molecular Formula� :�� C12H12Cl4N2 |
| CAS No.� : 612-83-9 | Molecular Weight :�253.1 of free base / 326.1 of Hydrochloride |
| Sr. No. | PARTICULARS | SPECIFICATION |
| 1. | Appearance @ 25�C | White Crestline Moist powder |
| 2. | % Strength by N.V. w/w | 70% to 73% on MW 253.1 / 90% to 93% on MW 326.1 |
| 3. | % Strength of dry material Nitrite Value w/w | 98% on MW 326.1 |
| 4. | Insoluble in dilute HCl solution | 0.08% max. |
| 5. | Insoluble in Tretrazo solution | 0.08% max. |
| 6. | Acidity | Positive pH 2 to 3 |
| 7. | MoistureContent%(ByK.F) | Max 0.1 |
| 8. | Color(APHA) | Max 25 |
| 9. | pH(1:1 with water) | 5-9 |
