Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanesulfonic Acid | HCID 6395 | — |
| Reactant | 5,12-Dihydro-2,9-dimethylquino(2,3-b)acridine-7,14-dione | HCID 70423 | — |
| Product | Quinacridone | HCID 13976 | — |
Reaction Steps
In the present example, 2,9-dimethylquinacridone is used as a pigment. A total of 10 parts by weight of 2,9-dimethylquinacridone is placed in a pear-shaped flask with a capacity of 300 mL, and 80 parts by weight of methanesulfonic acid is added thereto under normal temperature. The pear-shaped flask is immersed in oil bath heated to 80° C., and heating and stirring are performed for 10 min under an argon gas atmosphere. The 2,9-dimethylquinacridone is dissolved and a quinacridone pigment solution of a blue-violet color is prepared.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07794536B2 |
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| Source dataset | uspto-grants-2010_09 |
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| ORD ID | ord-ffb16d322c754179a8df20d1ec30ebc0 |
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| Source note | uspto-grants-2010_09 |
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