Oplas Red 338
Solvent Red 179
CAS: 6829-22-7
Molecular Formula: C22H12N2O
Oplas Red 338 - Names and Identifiers
Oplas Red 338 - Physico-chemical Properties
| Molecular Formula | C22H12N2O |
| Molar Mass | 320.35 |
| Density | 1.40±0.1 g/cm3(Predicted) |
| Melting Point | 253 °C |
| Boling Point | 611.6±38.0 °C(Predicted) |
| Storage Condition | Room Temprature |
| Use | Use can be used for plastic, a variety of resin and fiber spinning before coloring, transparent red E2G for all kinds of plastic and resin coloring, yellow red. Sun-resistant to grade 8. |
Oplas Red 338 - Method for synthesizing Solvent Red 179 with low pollution
from Baidu Library
patent type:
invention patent
Application (patent) number:
CN202011528072.5
application date:
20201222
Public/Announcement Number:
CN112592604A
Public/announcement date:
20210402
applicant (patent):
Anhui qingke Ruijie New Material Co., Ltd.
inventor:
Zhou Lixia , Liu Xie , Li Cheng , He Lei , Wu Xiang , Chen Zihui , Wang Jie , Xu Yong
National and provincial code:
CN340702
Abstract:
The present invention provides a method for the synthesis of Solvent Red 179 with low contamination. The preparation method comprises the following steps: Heating up to 40 ℃ and 60 ℃, sequentially adding 1,8 diaminonaphthalene, 1,8 naphthalene anhydride, SA catalyst to NMP, after stirring evenly, the temperature is raised to 110125 ℃ for 5 hours and 10 hours; The temperature is lowered to 60 ℃ and 75 ℃, the temperature is stirred for 1 hour and 3 hours, the temperature is lowered to 20 ℃ and 35 ℃, and the filter cake and filtrate are obtained by Suction filtration; the filter cake was washed with hot water, the washing liquid and the filtrate were collected, and subjected to distillation recovery; The filter cake was washed with hot water until neutral, and dried to obtain a Solvent Red 179 dye. The solvent red 179 dye prepared by the above preparation method of the present invention has a delta E<1.0, a Delta C of 0.5, and a pressure value of <0.3, product quality can meet the application needs of high-end customers.
Last Update：2024-01-02 23:10:35
Oplas Red 338 - Production process of Solvent Red 179
from Baidu Library
patent type:
invention patent
Application (patent) number:
CN200610088487.9
application date:
20060825
Public/Announcement Number:
CN1919931A
Public/announcement date:
20070228
applicant (patent):
Nantong Longxiang Chemical Co., Ltd.
inventor:
Yang Lianfei , Mao Zhihong Wang Siyuan
National and provincial code:
CN320684
Abstract:
The invention relates to a production process of Solvent Red 179, and belongs to the field of chemical industry. In this process, the reaction is sufficient, the yield is high, and the production cost is saved. Its process steps include synthesis, filtration, washing, distillation, the production process of glacial acetic acid as a solvent, the filtrate can be recycled after distillation, can reduce the cost. And the glacial acetic acid boiling point is 118 ℃, the reaction process to produce a small amount of water, the boiling point of 110-116 ℃, to meet the best reaction temperature. A small amount of by-products produced in the reaction process are all soluble in glacial acetic acid, while the product is insoluble in glacial acetic acid, thus improving the purity of the product, the yield is more than 95.5%, and the emission of process pollutants is less.Last Update：2023-08-16 22:09:50
Oplas Red 338 - Suction filter for preparation of Solvent Red 179 dye
Application (patent) number:
202023314401
applicant (patent):
Anhui qingke Ruijie New Material Co., Ltd.
inventor:
Li Cheng , Wang Jie , Wu Xiang , Li Chen Tao Aiqing , Pei Ying
Last Update：2023-08-16 22:09:50
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CAS: 6829-22-7
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Product Name: Solvent Red 179 Request for quotation
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Tel: +86-571-88162785
Email: Lucy@verypharm.com
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