redsaltnbgl
4-Chloro-2-nitroaniline
CAS: 89-63-4
Molecular Formula: C6H5ClN2O2
redsaltnbgl - Names and Identifiers
redsaltnbgl - Physico-chemical Properties
| Molecular Formula | C6H5ClN2O2 |
| Molar Mass | 172.57 |
| Density | 1.37 |
| Melting Point | 117-119°C(lit.) |
| Boling Point | 200°C (rough estimate) |
| Flash Point | 191 °C |
| Water Solubility | INSOLUBLE |
| Solubility | 0.5g/l (anhydrous substance) |
| Vapor Presure | 0.000667mmHg at 25°C |
| Appearance | Crystalline Powder or Chunks |
| Color | Orange |
| BRN | 512436 |
| pKa | pK1: 1.10(+1) (25°C) |
| PH | 7 (0.5g/l, H2O, 20℃) |
| Storage Condition | room temp |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.6460 (estimate) |
| Physical and Chemical Properties | properties orange-red crystalline powder. |
| Use | For the production of pigment resistant yellow 10G, disperse Yellow 211, UV absorber UV-326 |
redsaltnbgl - Risk and Safety
| Risk Codes | R26/27/28 - Very toxic by inhalation, in contact with skin and if swallowed. R33 - Danger of cumulative effects R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S28A - |
| UN IDs | UN 2237 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | BX1575000 |
| TSCA | Yes |
| HS Code | 29214210 |
| Hazard Note | Very Toxic |
| Hazard Class | 6.1 |
| Packing Group | III |
redsaltnbgl - Nature
Open Data Verified Data
orange-red crystalline powder. The melting point was 116-117 °c. Insoluble in water, soluble in ethanol, ether and acetic acid, micro-soluble gasoline.
Last Update：2024-01-02 23:10:35
redsaltnbgl - Preparation Method
Open Data Verified Data
2,5 dichloronitrobenzene and ammonia ammonia solution, crystallization, Suction filtration, to the finished product.
Last Update：2022-01-01 10:51:51
redsaltnbgl - Use
Open Data Verified Data
ice dye base, used in the preparation of Red Lake, yellow 10g Lake and other organic pigments and dyes.
Last Update：2022-01-01 10:51:51
redsaltnbgl - Safety
Open Data Verified Data
- This product is highly toxic. Its toxicity is similar to that of P-nitroaniline. Its toxicity and protection methods see P-nitroaniline.
- It is packed in plastic bags lined with plywood or cardboard barrels, 35kg or 50kg per barrel. Store in a cool, ventilated place. During storage and transportation to prevent sun exposure, rain. According to the provisions of the storage and transportation of toxic chemicals.
Last Update：2022-01-01 10:51:52
redsaltnbgl - Reference Information
| Color index | 37040 |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | for the production of pigment yellow 10G, disperse Yellow 211, UV absorber UV-326 and so on red base 3GL is mainly used for cotton dyeing and cotton printing, also used for viscose fiber, silk, polyester dyeing. The compound was stained jujube red by coupling with phenol AS-OL. The coupling ability is strong, and the coupling speed is fast. It is also used as an intermediate in the manufacture of organic pigments. p-chloro-o-Nitroaniline is an intermediate of the herbicide quetiapine and a dye intermediate. ice dye base, used in the preparation of Red Lake, yellow 10g Lake and other organic pigments and dyes. It can be used as a color developing agent for cotton and viscose fabrics, and can also be used for printing and dyeing of silk and polyester fabrics. |
| production method | with 2, 5-dichloronitrobenzene and liquid ammonia as raw materials, pressurized ammonolysis, crystallization, and then filtration, dried. Raw material consumption quota: 2, 5-dichloronitrobenzene (industrial) 1167kg/t, liquid ammonia (industrial) 230kg/t, ammonia (industrial) 2420kg/t. in the preparation method, 2, 5-dichloronitrobenzene is used as a raw material and subjected to high-pressure ammonolysis with 28% aqueous ammonia to obtain a finished product. 1, 4-dichloro-2-nitrobenzene was prepared by ammoniation. The ammonification reaction can be carried out intermittently in an autoclave, that is, 27% ammonia water is used, the temperature is 170-175 ° C., the pressure is 32-35PA, and the reaction is completed in about H, and the finished product is obtained after refining. The ammoniation reaction can also be carried out continuously in a tubular reactor, I .e., with 27% aqueous ammonia, at a temperature of -208 °c, and at a pressure.. 1, 4-dichloro-2-nitrobenzene 28L/h and 27% ammonia water 140L/h (the molar ratio of the two is 1:10) and 80 deg C water 50L/h respectively through the metering tank with the pump to the mixing nozzle, after mixing the preheater is heated to 180 deg C, and then added to the snake pipe area, pipe temperature is 205-208 deg C. The reaction was carried out in two columns with an internal diameter of 90mm and a length of 4m and an internal pressure of 200PA. The pressure was regulated by means of a pressure-reducing valve in front of the expander. 4-chloro-2-nitroaniline, water, ammonium chloride and excess ammonia are discharged through the pressure reducing valve, enter the expander along the tangential direction and then reduce to normal pressure, and the temperature in the expander is about 85 ℃, by spraying hot condensate water at the top of the expander is controlled. Most of the excess ammonia is recovered by the cooler to the ammonia absorber. The viscosity in the expander was heated to 80-90 °c to evaporate more ammonia. The viscous material contained finely divided 4-chloro-2-nitroaniline, ammonium chloride solution and 3% free ammonia. The viscous substance was taken out through a spiral feeder, and then Suction filtration was performed to obtain 4-chloro-2-nitroaniline having a melting point of 114-114.5 °c. If other conditions are unchanged, when the pressure is reduced to 150Pa, 120Pa, the melting point of the product is unchanged, if it is reduced to 100Pa, the melting point of the product is decreased by 0.5. |
| category | toxic substances |
| toxicity grade | high toxicity |
| Acute toxicity | oral-rat LD50: 400 mg/kg; Oral-mouse LD50: 800 mg/kg |
| flammability hazard characteristics | toxic aniline, nitrogen oxides and chloride gases emitted by thermal decomposition |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from food raw materials |
| fire extinguishing agent | carbon dioxide, sand, foam, water mist |
| spontaneous combustion temperature | 964 ° F. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:12
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Product Name: 4-Chloro-2-nitroaniline Request for quotation
CAS: 89-63-4
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Tel: 0086-551-65418684
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