Azoic Diazo Component 34
Azoic Diazo Component 34
CAS: 16047-24-8
Molecular Formula: C7H6N3O2+
Azoic Diazo Component 34 - Names and Identifiers
Azoic Diazo Component 34 - Physico-chemical Properties
| Molecular Formula | C7H6N3O2+ |
| Molar Mass | 164.14 |
| Melting Point | 112-115°C |
| Solubility | DMF, DMSO |
| Appearance | Solid |
| Color | Brown Crystalline |
| Storage Condition | −20°C |
| Physical and Chemical Properties | Yellow needle crystal (industrial product is yellow powder). Melting point 129 ℃. Easily soluble in ethanol, soluble in ether, benzene, glacial acetic acid, slightly soluble in water. This product is toxic and easy to be absorbed by the skin. |
Azoic Diazo Component 34 - Risk and Safety
| WGK Germany | 3 |
| RTECS | XT0565000 |
Azoic Diazo Component 34 - References
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | the melting point of ice-dyed diazo component 34 is 129 ℃, which is easily soluble in ethanol, soluble in ether, benzene, glacial acetic acid, slightly soluble in water. This product is toxic, easy to be absorbed by the skin. It is mainly used for cotton, viscose fiber, silk dyeing and fabric printing. AS-OL with the color phenol coupling red, coupling ability, coupling speed is medium. |
| Use | red base RL is mainly used for dyeing cotton, viscose fiber, silk and printing of fabrics. AS-OL with the color phenol coupling red, coupling ability, coupling speed is medium. |
| production method | with o-toluidine as raw material, first with benzenesulfonyl chloride (or p-Toluenesulfonyl chloride) the reaction yields N-benzenesulfonyl-o-toluidine (or N-p-Toluenesulfonyl-o-toluidine), which is then nitrated and hydrolyzed to give the product.. 10.5kg of chlorobenzene, 100 of nitric acid (63) and 6kg of water were added to the nitrifier. Heat to 30 °c. 0.5kg of sodium nitrite was added, and then 225kg of N-benzenesulfonyl-o-toluidine and 48.5kg of 100 nitric acid (63%) were added at the same time within 2-H, and nitric acid was added slightly. The reaction temperature was gradually increased to about 40 °c, heated to 50 °c, incubated for 1H, and then cooled to 15 °c. The feed liquid was rapidly filtered under reduced pressure, and the filter cake was washed twice with 100L of chlorobenzene each time, and then washed with water until neutral (the filtrate and the water wash were combined and the Chlorobenzene was recovered). The filter cake was dried until use. Add 450kg% sulfuric acid and 10kg of water to the hydrolysis pan, and add 450kg of the above nitrated product within 2H, keep the hydrolysis temperature not to exceed 60 ℃ (cooling is required), and finish the feeding, incubation at 60 °c was continued for 1H until a clear solution was obtained. Hydraulic into the sedimentation tank, tank has been placed with 6600L of water and 228kg of sodium hydroxide (100%), stirring 5H, 4-nitro-o-toluidine precipitation, filtration, washing to neutral, vacuum drying was carried out at 95 ° C. And the product was pulverized to a size of 2mm. |
Last Update：2024-04-09 20:49:11
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Azoic Diazo Component 34
4-甲基-1,2-噻吩-4-羧酸
1-Pyrrolidinecarboxylic acid, 4-hydroxy-2-(3-thiazolidinylcarbonyl)-, 1,1-dimethylethyl ester, (2S,4R)-
Benzo[b]thiophen-3(2H)-one, 2-[amino(4-fluorophenyl)methylene]-, (E)- (9CI)
5-AMINOBENZENE-1,3-DIOL HYDROCHLORIDE
1H-Pyrazole, 1-methyl-3,5-diphenyl-4-propoxy-
Silodosin Impurity 47
Cholest-5-en-3-ol (3β)-, 3-[2-(2-ethoxyethoxy)ethyl carbonate]
4-(4-chlorophenyl)piperidin-2-one
4-羟基-6-溴嘧啶
4-甲基-1,2-噻吩-4-羧酸
1-Pyrrolidinecarboxylic acid, 4-hydroxy-2-(3-thiazolidinylcarbonyl)-, 1,1-dimethylethyl ester, (2S,4R)-
Benzo[b]thiophen-3(2H)-one, 2-[amino(4-fluorophenyl)methylene]-, (E)- (9CI)
5-AMINOBENZENE-1,3-DIOL HYDROCHLORIDE
1H-Pyrazole, 1-methyl-3,5-diphenyl-4-propoxy-
Silodosin Impurity 47
Cholest-5-en-3-ol (3β)-, 3-[2-(2-ethoxyethoxy)ethyl carbonate]
4-(4-chlorophenyl)piperidin-2-one
4-羟基-6-溴嘧啶