What is dinitrobenzene used for?
Dinitrobenzene is a pale yellow or white crystalline (sand- like) solid which is usually a mixture of three isomers. It is used in making dyes, other chemicals, and explosives. * Dinitrobenzene is on the Hazardous Substance List because it is regulated by OSHA and cited by ACGIH, DOT, NIOSH, DEP, IRIS, NFPA and EPA.
What is the smell of Meta-dinitrobenzene?
1,3-Dinitrobenzene
| PubChem CID | 7452 |
|---|---|
| Description | 1,3-dinitrobenzene is a dinitrobenzene that is benzene disubstituted at positions 1 and 3 with nitro groups. It has a role as a neurotoxin. ChEBI M-dinitrobenzene is a yellow solid with a slight odor. Sinks in water. (USCG, 1999) CAMEO Chemicals |
What is the formula of dinitrobenzene?
C6H4N2O4Dinitrobenzene / Formula
Is dinitrobenzene acidic or basic?
Structure for T3D0782: 1,3-Dinitrobenzene
| Property | Value | Source |
|---|---|---|
| logS | -3 | ALOGPS |
| pKa (Strongest Acidic) | 13.86 | ChemAxon |
| pKa (Strongest Basic) | -2.9 | ChemAxon |
| Physiological Charge | 0 | ChemAxon |
Is Dinitrobenzene soluble in water?
Nitrobenzene is an industrial chemical. It is an oily yellow liquid with an almond-like odor. It dissolves only slightly in water and will evaporate to air.
Is M Dinitrobenzene soluble in water?
nature : pale yellow crystal. Melting Point 90.02 ° C (89.57 ° C), the boiling point of 291 ° C (100.8kPa), 167 ° C (1.87), relative density of 1.571 (0 / 4 ° C). Soluble in benzene, chloroform, ethyl, alcohol-soluble slightly soluble in water. With the steam can be volatile.
Is dinitrobenzene soluble in water?
Is M-dinitrobenzene soluble in water?
How do you make Dinitrobenzene?
1,3 Dinitrobenzene (Metadinitrobenzene) Synthesis
Is nitrobenzene a hazardous substance?
* Nitrobenzene is on the Hazardous Substance List because it is regulated by OSHA and cited by ACGIH, DOT, NIOSH, DEP, IARC, IRIS, NFPA and EPA. * This chemical is on the Special Health Hazard Substance List because it is a CARCINOGEN.
How do you get rid of nitrobenzene?
Nitrobenzene from reaction mixture can be removed by extracting the reaction mixture with ether. But one must know from what type of reaction mixture you want to separate nitrobenzene(Acid/phenol/base). You can remove one component using qualitative analysis of the mixture containing two/three components.
Is M-dinitrobenzene soluble in alcohol?
Soluble in benzene, chloroform, ethyl, alcohol-soluble slightly soluble in water. With the steam can be volatile.
How do you make M-dinitrobenzene?
12.5 ml (15 g) of nitrobenzene in portions of about 3 ml is added slowly and after each addition the flask is shaken thoroughly. The mixture is heated on water bath for 30 min. with shaking. Then it is allowed to cool and poured into about 500 ml of cold water cautiously with vigorous stirring.
Which solvent is used for the recrystallization of m-dinitrobenzene?
The acetic acid ethyl dissolution liquid of the mix dinitrobenzene obtaining is down to 20 ℃, carries out suction filtration, and the crystal that suction filtration obtains, by 90ml moisture secondary washing, after vacuum-drying, obtains Meta-dinitrobenzene crystal 53.2g, Separation and Recovery rate 57.6%, and …
Which catalyst is used in the preparation of m-dinitrobenzene?
The results showed that Pt/ TiO2 (HT) catalyst had a higher yield (60%) toward m- phenylenediamine and conversion level (98.2%) of m-dinitrobenzene.
Is nitrobenzene a carcinogen?
The U.S. Environmental Protection Agency has classified nitrobenzene as a likely human carcinogen. The International Agency for Research on Cancer has determined that nitrobenzene is possibly carcinogenic in humans.
What does nitrobenzene smell like?
Nitrobenzene is a colourless to pale yellow, oily, highly toxic liquid with the odour of bitter almonds.
Is nitrobenzene hazardous?
* Nitrobenzene can cause reproductive damage. Handle with extreme caution. * Contact can irritate the skin and eyes. * High levels can interfere with the ability of the blood to carry Oxygen causing headache, fatigue, dizziness, and a blue color to the skin and lips (methemoglobinemia).
Is m-dinitrobenzene soluble in water?
What are the chemicals used for the preparation of m-dinitrobenzene from nitrobenzene?
Step 1: Preparation of m-dinitrobenzene from nitrobenzene
Place 37.5 g (21 ml) of concentrated sulphuric acid and 22.5 g (15 ml) of fuming nitric acid, in a round-bottomed flask; add few fragents of porcelain pieces.
Why nitrobenzene is used in soap?
Nitrobenzene is also used to mask unpleasant odors in shoe and floor polishes, leather dressings, paint solvents, and other materials. Redistilled, as oil of mirbane, nitrobenzene had been used as an inexpensive perfume for soaps. It has been replaced by less toxic chemicals for this purpose.
Is nitrobenzene a pesticide?
A small amount of nitrobenzene is used in the manufacture of dyes, drugs, pesticides, and synthetic rubber.
Which reagent is used for selective reduction of m-dinitrobenzene?
Note: It must be noted that Sn / HCl is known as the best reagent for reduction of m- dinitrobenzene to m- nitroaniline but here it can not be used because its use will reduce both the nitro groups to amino groups.
Is nitrobenzene harmful to humans?
How can nitrobenzene affect my health? Nitrobenzene causes many harmful health effects. Direct skin or eye contact may cause mild irritation. Repeated exposures to a high level of nitrobenzene can cause a blood problem called methemoglobinemia.
What is the reagent best required for preparation of m-dinitrobenzene from nitrobenzene?
Sulphuric acid (mixed acid agent). The role of Sulphuric acid is to convert nitric acid into highly reactive electrophilic, nitronium ion, which is effective nitrating agent.