HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phosphoric Acid → Quinacridone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phosphoric Acid | HCID 1004 | — |
| Reactant | Quino[2,3-b]acridine-7,14-dione, 2,9-dichloro-5,12-dihydro- | HCID 76530 | — |
| Solvent | Water | HCID 962 | — |
| Product | Quinacridone | HCID 13976 | — |
Reaction Steps
was cyclized in phosphoric acid to form 2,9-dichloroquinacridone. The phosphoric acid containing the thus-formed 2,9-dichloroquinacridone was dispersed in water, and the 2,9-dichloroquinacridone (crude C.I. Pigment Red 202) was then sufficiently washed, dried and pulverized to obtain Quinacridone pigment composition (2-5).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06667140B2 |
| Source dataset | uspto-grants-2003_12 |
| ORD ID | ord-88ae6df139d942e3b992d262bda4d07a |
| Source note | uspto-grants-2003_12 |