DIMETHYLZINC
Dimethylzinc
CAS: 544-97-8
Molecular Formula: C2H6Zn
DIMETHYLZINC - Names and Identifiers
| Name | Dimethylzinc |
| Synonyms | (CH3)2Zn Dimethylzinc Dimethylzince Dimethylzincmin Dimethylzinc solution Dimethylzincwtinhexane Dimethylzinc1.2M solution in tolueneAcroSeal§3 |
| CAS | 544-97-8 |
| EINECS | 208-884-1 |
| InChI | InChI=1/2CH3.Zn/h2*1H3;/rC2H6Zn/c1-3-2/h1-2H3 |
| InChIKey | AXAZMDOAUQTMOW-UHFFFAOYSA-N |
DIMETHYLZINC - Physico-chemical Properties
| Molecular Formula | C2H6Zn |
| Molar Mass | 95.46 |
| Density | 0.92g/mLat 20°C |
| Melting Point | -42°C |
| Boling Point | 44-46°C |
| Flash Point | 30°F |
| Appearance | liquid |
| Color | colorless |
| Merck | 14,3263 |
| BRN | 3587195 |
| Storage Condition | 0-6°C |
| Sensitive | Air & Moisture Sensitive |
DIMETHYLZINC - Risk and Safety
| Risk Codes | R11 - Highly Flammable R14 - Reacts violently with water R34 - Causes burns R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R65 - Harmful: May cause lung damage if swallowed R67 - Vapors may cause drowsiness and dizziness R63 - Possible risk of harm to the unborn child R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R48/20 - R17 - Spontaneously flammable in air R14/15 - R36/38 - Irritating to eyes and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 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. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. S60 - This material and its container must be disposed of as hazardous waste. S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S33 - Take precautionary measures against static discharges. S29 - Do not empty into drains. S16 - Keep away from sources of ignition. S46 - If swallowed, seek medical advice immediately and show this container or label. S43A - S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 3399 4.3/PG 2 |
| WGK Germany | 2 |
| FLUKA BRAND F CODES | 10-23 |
| TSCA | Yes |
| HS Code | 29319090 |
| Hazard Class | 4.2 |
| Packing Group | I |
DIMETHYLZINC - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| introduction | dimethyl zinc is a fluid liquid, stable in a sealed tube or under an inert atmosphere. Dimethyl zinc is miscible with hydrocarbons, soluble in ether, and can burn in the air to emit a blue flame, accompanied by a specific smell of garlic. Dimethyl zinc slowly automatically oxidizes in air to produce methyl methoxyzinc. It can be formed by the combination of methyl iodide and zinc on a zinc-sodium alloy. |
| Application | High purity dimethyl zinc and other metal organic compounds are metal organic chemical vapor deposition technology (MOCVD), chemical beam epitaxy (CBE) One of the most important sources of growth of photovoltaic material zinc oxide is also the most important raw material for semiconductor laser doping and thin film solar cells. |
| Use | Dimethyl zinc is an alkyl metal that can be used in organic synthesis, such as reacting with α-dimethylpropionyl chloride for the first time Synthesis of dimethyl butanone. |
| Synthesis | Dimethyl zinc is a volatile liquid, which can be formed by the combination of methyl iodide and zinc on a zinc-sodium alloy. 2Zn 2CH3I→Zn (CH3)2 ZnI2 Sodium is the catalyst for this reaction. In addition, this reaction will also produce zinc iodide. |
| Preparation | A method for preparing dimethyl zinc, comprising the following steps: adding zinc fluoride to a reaction kettle under the protection of nitrogen, and then dropping trimethyl aluminum under stirring conditions. The molar ratio of trimethyl aluminum to zinc fluoride is 1:2. The reaction speed is controlled by the dropping acceleration of trimethyl aluminum. After the dropping of trimethyl aluminum is completed, continue stirring for 4 hours, then adjust the temperature of the kettle to 75 ℃ and keep it for 2.5h to collect the steamed Zn(CH3)2; Then the molar ratio of diethyl zinc, trimethylaluminum and diethyl zinc is 1.2:1, and the temperature of the reaction kettle is controlled to 100 ℃, and the evaporated Zn(CH3)2 is collected and the diethyl zinc is added dropwise, keep the kettle temperature at 100 ℃ and continue to collect Zn(CH3) for 2 2 hours. The yield of dimethyl zinc in this method is 95% (calculated as methyl of trimethylaluminum). |
| Production method | Zinc and iodomethane or dimethylmercury can be produced. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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