o-Fluorotoluene
o-Fluorotoluene
CAS: 95-52-3
Molecular Formula: C7H7F
o-Fluorotoluene - Names and Identifiers
o-Fluorotoluene - Physico-chemical Properties
| Molecular Formula | C7H7F |
| Molar Mass | 110.13 |
| Density | 1.001 g/mL at 25 °C (lit.) |
| Melting Point | -62 °C (lit.) |
| Boling Point | 113-114 °C (lit.) |
| Flash Point | 55°F |
| Water Solubility | immiscible |
| Vapor Presure | 21 mm Hg ( 20 °C) |
| Vapor Density | 3.8 (vs air) |
| Appearance | Liquid |
| Specific Gravity | 1.001 |
| Color | Clear colorless to slightly yellow |
| Merck | 14,4180 |
| BRN | 1853362 |
| Storage Condition | Store below +30°C. |
| Explosive Limit | 1.3%(V) |
| Refractive Index | n20/D 1.473(lit.) |
| Physical and Chemical Properties | Density 1.001 melting point -62°C boiling point 113-114°C refractive index 1.472-1.474 flash point 8°C water-soluble immiscible |
| Use | Used as pharmaceutical, pesticide intermediates |
o-Fluorotoluene - Risk and Safety
| Risk Codes | R11 - Highly Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S33 - Take precautionary measures against static discharges. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
| UN IDs | UN 2388 3/PG 2 |
| WGK Germany | 3 |
| RTECS | XT2579000 |
| TSCA | Yes |
| HS Code | 29036990 |
| Hazard Note | Flammable/Irritant |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 2000 mg/kg |
o-Fluorotoluene - Reference Information
| introduction | 2-fluorotolene (2-fluorotoluene), also known as o-methyl (based) fluorobenzene and 2-methyl (based) fluorobenzene, is a flammable chemical with a flash point of 8 ℃ and is decomposed by heat to produce toxic fluoride gas. it is an intermediate for synthetic medicine, pesticide and other fine chemical products. |
| Synthesis method | Halogen exchange method uses alkali metal fluorides (such as CsF and KF, etc.) and substituents The aromatic compound reacts, allowing fluorine atoms to replace other halogen groups (such as chlorine). The reaction method of halogen exchange between inorganic halides and organic halides is called Finkelstein method. It is a method of synthesizing fluorinated aromatic compounds in industrial production, and it is also a more active field in the synthesis of fluorinated aromatic compounds in recent years. Halogen exchange method is the main method with industrial application value. It is characterized by low price of raw materials, easy availability and good selectivity, and can not use fluoroboric acid, hydrogen fluoride and other highly toxic reagents in the reaction process. Generally speaking, it is relatively environmentally friendly and safe, in line with the current trend of pharmaceutical pesticide development. The disadvantage is that its reaction conditions are more stringent, which requires the reaction at a higher temperature and excessive potassium fluoride. At the same time, it requires an aprotic inert reagent as a solvent, and it needs to be carried out under anhydrous conditions. |
| chemical properties | colorless transparent liquid, melting point -62 ℃, boiling point 113-114 ℃, refractive index 1.473, specific gravity 1.001, flash point 8 ℃. |
| use | used as an intermediate in medicine and pesticide |
| category | flammable liquid |
| toxicity classification | low toxicity |
| acute toxicity | oral-wild bird LD50: 100 mg/kg |
| flammability hazard characteristics | flammable; Thermal decomposition of toxic fluoride gas |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; store separately from oxidant |
| fire extinguishing agent | dry powder, carbon dioxide |
| NIST chemical information | The information is provided by: webbook.nist.gov (external link) |
| EPA chemical information | information provided by: ofmpub.epa.gov (external link) |
Last Update：2024-04-09 01:59:59
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