HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sulfuric Acid → Quinacridone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | 5,12-Dihydro-2,9-dimethylquino(2,3-b)acridine-7,14-dione | HCID 70423 | — |
| Reactant | HCID 131717156 | HCID 131717156 | — |
| Product | Quinacridone | HCID 13976 | — |
Reaction Steps
A suitable vessel is charged with 8182 kg of 1.5% sulfuric acid, 68.2 kg of isopropylammoniumdodecylbenzene sulfonate and 4909 kg of mill powder from above. The mixture is heated near its boiling point for 3 hours after which the pigmentary solid solution of 2,9-dimethylquinacridone and quinacridone is isolated in a suitable filtration device and washed free of acid and salts. The resulting water wet pigment may be either dried as such or further treated depending on the desired end use.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05084100 |
| Source dataset | uspto-grants-1992_01 |
| ORD ID | ord-9abcc5969f7a4e5ab9effd71caf55501 |
| Source note | uspto-grants-1992_01 |