2,6-dimethylnitrobenzene
2-Nitro-m-xylene
CAS: 81-20-9
Molecular Formula: C8H9NO2
2,6-dimethylnitrobenzene - Names and Identifiers
| Name | 2-Nitro-m-xylene |
| Synonyms | 2-nitro-m-xylen 2-Nitro-m-xylene 2-NITRO-M-XYLENE 2,6-dimethylnitrobenzene 2,6-DIMETHYLNITROBENZENE 1,3-DIMETHYL-2-NITROBENZENE 1,3-dimethyl-2-nitrobenzene 2-Nitro-1,3-dimethylbenzene 1,3-dimethyl-2-nitro-benzen 2,6-Dimethyl-1-nitrobenzene 2-NITRO-1,3-DIMETHYLBENZENE Benzene,1,3-dimethyl-2-nitro- |
| CAS | 81-20-9 |
| EINECS | 201-333-6 |
| InChI | InChI=1/C8H9NO2/c1-6-4-3-5-7(2)8(6)9(10)11/h3-5H,1-2H3 |
| InChIKey | HDFQKJQEWGVKCQ-UHFFFAOYSA-N |
2,6-dimethylnitrobenzene - Physico-chemical Properties
| Molecular Formula | C8H9NO2 |
| Molar Mass | 151.16 |
| Density | 1.112g/mLat 25°C(lit.) |
| Melting Point | 14-16°C(lit.) |
| Boling Point | 225°C744mm Hg(lit.) |
| Flash Point | 190°F |
| Water Solubility | insoluble |
| Vapor Presure | 0.136mmHg at 25°C |
| Appearance | neat |
| Color | White or Colorless to Yellow |
| BRN | 2046066 |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | n20/D 1.521(lit.) |
| Physical and Chemical Properties | Colorless liquid. Melting point 13 °c. Boiling point 225 ℃(99kPa),128 ℃(5.85Kpa),84.6 ℃(6.65 × 10-3Kpa), Flash Point 87 ℃, relative density 1.112(15/4 ℃), refractive index 1.5202. Soluble in ethanol. |
| Use | Used as pharmaceutical intermediates, for the synthesis of direct purple 7, Solvent Red 26, can also be used as intermediate raw materials for other chemical products |
2,6-dimethylnitrobenzene - Risk and Safety
| Risk Codes | R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R20/21 - Harmful by inhalation and in contact with skin. R40 - Limited evidence of a carcinogenic effect R36/37/38 - Irritating to eyes, respiratory system and skin. R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R38 - Irritating to the skin R11 - Highly Flammable |
| Safety Description | S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37 - Wear suitable protective clothing and gloves. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S16 - Keep away from sources of ignition. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S13 - Keep away from food, drink and animal foodstuffs. S24 - Avoid contact with skin. S9 - Keep container in a well-ventilated place. |
| UN IDs | UN 1665 6.1/PG 2 |
| WGK Germany | 2 |
| RTECS | ZE4686000 |
| TSCA | Yes |
| HS Code | 29042000 |
| Hazard Class | 6.1 |
| Packing Group | II |
| Toxicity | LD50 ivn-mus: 45 mg/kg CSLNX* NX#00236 |
2,6-dimethylnitrobenzene - Upstream Downstream Industry
| Raw Materials | m-Xylene |
| Downstream Products | 2,6-Dimethylaniline |
2,6-dimethylnitrobenzene - 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 organic synthesis. used as pharmaceutical intermediates for the synthesis of direct Violet 7, Solvent Red 26, can also be used as intermediate raw materials for other chemical products |
| production method | is obtained by nitration of M-xylene. The M-xylene was cooled to below 10 °c and the pre-cooled mixed acid (56.5% sulfuric acid, 28.5% nitric acid, 15% water) was added in portions. The first batch of mixed acid was added at 15-17 °c for about 3H; The second batch of control temperature was 17-25 °c, added at 2H; The third batch was kept at 25-30 °c, added at 1H. After addition, the mixture was incubated at 30 ° C. And stirred for 2H. The mixture was allowed to stand and layered, and the nitrated oil in the upper layer was taken and washed with water until it was not acidic to Congo red test paper. The crude fraction at 105-145 ° C. (14.6kPa) was collected by distillation under reduced pressure, and then the crude fraction at 100-110 ° C. (13. 3kps fraction) was collected as 2-nitrom-xylene. |
| category | toxic substances |
| toxicity grade | high toxicity |
| Acute toxicity | intravenous injection-mouse LD50: 45 mg/kg |
| explosive hazard characteristics | explosive mixture with oxidant |
| flammability hazard characteristics | open flame flammable; Thermal decomposition of toxic nitrogen oxide gases |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Storage and transportation are separated from food raw materials and reducing agents |
| fire extinguishing agent | foam, water mist, carbon dioxide, sand |
Last Update：2024-04-09 02:00:12
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Raw Materials for 2,6-dimethylnitrobenzene
Downstream Products for 2,6-dimethylnitrobenzene