97-02-9
2,4-Dinitroaniline
CAS: 97-02-9
Molecular Formula: C6H5N3O4
97-02-9 - Names and Identifiers
| Name | 2,4-Dinitroaniline |
| Synonyms | 2,4-Dinitroanilin 2,4-Dinitroaniline 2,4-DINITROANILINE Dinitroaniline, 2,4- 2,4-Dinitrobenzeneamine benzenamine, 2,4-dinitro- 1-Amino-2,4-dinitrobenzene 2,4-DINITROANILINE OEKANAL, 250 MG |
| CAS | 97-02-9 |
| EINECS | 202-553-5 |
| InChI | InChI=1/C6H5N3O4/c7-5-2-1-4(8(10)11)3-6(5)9(12)13/h1-3H,7H2 |
97-02-9 - Physico-chemical Properties
| Molecular Formula | C6H5N3O4 |
| Molar Mass | 183.12 |
| Density | 1,61 g/cm3 |
| Melting Point | 177 °C |
| Boling Point | 316.77°C (rough estimate) |
| Flash Point | 224 °C |
| Water Solubility | 0.06 g/L (20 ºC) |
| Vapor Presure | 1.25E-06mmHg at 25°C |
| Appearance | Crystalline Powder |
| Color | Yellow to yellow-green or yellow-brown |
| Merck | 14,3270 |
| BRN | 982999 |
| pKa | pK1:-14.25(+1) (25°C) |
| Storage Condition | Flammables area |
| Stability | Stable. Incompatible with oxidizing agents. May decompose violently at elevated temperatures. |
| Refractive Index | 1.6910 (estimate) |
| Physical and Chemical Properties | Yellow crystal. melting point 188 ℃ relative density 1.615 flash point 223.9 ℃ solubility: slightly soluble in ethanol, insoluble in water, soluble in acid solution. |
| Use | For the manufacture of azo dyes |
97-02-9 - 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 1596 6.1/PG 2 |
| WGK Germany | 2 |
| RTECS | BX9100000 |
| TSCA | Yes |
| HS Code | 29214210 |
| Hazard Class | 6.1 |
| Packing Group | II |
97-02-9 - Nature
Open Data Verified Data
yellow crystals. Flammable. The relative density was 1. 615. Melting point 188 °c. Flash point 223.9 °c. Slightly soluble in ethanol, insoluble in water, soluble in acid solution.
Last Update：2024-01-02 23:10:35
97-02-9 - Preparation Method
Open Data Verified Data
from 2,4-= nitrochlorobenzene at 108~110 deg C and 0.3 ~ MPa pressure, the reaction product is filtered, washed to neutral, and dried to obtain a finished product.
Last Update：2022-01-01 10:51:44
97-02-9 - Use
Open Data Verified Data
dye intermediates, mainly used in the manufacture of azo dyes and disperse dyes, also used as printing ink toner and preparation of preservatives.
Last Update：2022-01-01 10:51:43
97-02-9 - Safety
Open Data Verified Data
- This product is highly toxic. It is strongly irritating to the skin and mucous membranes. Can be absorbed through the skin caused by poisoning, more severe than nitroaniline toxicity. See meta-nitroaniline.
- the iron drum is lined with plastic bags or cardboard barrels, 40kg or 50kg per barrel. Drying was maintained during storage. Hazardous materials shall be stored and transported according to regulations.
Last Update：2022-01-01 10:51:44
97-02-9 - Reference Information
| 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 manufacture of azo dyes and disperse dyes, also can be used as printing ink toner and preparation of preservatives, etc. The product is Disperse dyes, neutral dyes, sulfur dyes, organic pigment intermediates. For the production of sulfide blue 3R, disperse Red B, disperse Violet 2R dyes. Also used in other organic synthesis, production of pesticides such as two nitrate powder, as well as used as printing ink toner and preparation of preservatives. |
| production method | is obtained by pressurized aminolysis of 2, 4-dinitrochlorobenzene. In the aminolysis reaction pot, add 15kg of pull-open powder (1, 2-dibutylnaphthalene-6-sodium sulfonate), 300 kg2, 4-dinitrochlorobenzene and 1350L ammonia water (containing 150kg ammonia), heat, the temperature was raised to 80 °c in about 1H, and the heating was stopped. The reaction temperature was controlled to 108-110 ° C. And the pressure was 0.35-0.4MPa. Heat preservation reaction 4h after pressure relief. The released ammonia gas is absorbed and reused with water. The reaction solution was cooled to below 35 ° C. And filtered, and the filter cake was washed with cold water to near neutrality to obtain a finished product. The yield was 90-95%. |
| category | toxic substances |
| toxicity grade | high toxicity |
| Acute toxicity | oral-rat LD50: 285 mg/kg; Oral-mouse LD50: 370 mg/kg |
| stimulation data | eyes-rabbits 500 mg/24 h mild |
| flammability hazard characteristics | open flame flammable; High thermal decomposition of toxic nitrogen oxide smoke; reaction with oxidant |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; With oxidant, food additives, separate storage of acids |
| extinguishing agent | water mist, foam, carbon dioxide, dry powder, sand. |
| Occupational Standard | SEL 0.3 mg/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
