75-16-1
methylmagnesium bromide
CAS: 75-16-1
Molecular Formula: CH3BrMg
75-16-1 - Names and Identifiers
| Name | methylmagnesium bromide |
| Synonyms | bromomethyl-magnesiu BROMOMETHYLMAGNESIUM METHYLMAGNESIUM BROMIDE methylmagnesium bromide methylmagnesium bromide sol. Methyl magnesium bromide(in ethyl ether) methyl-magnesiubromide(ethylethersolution)[qr] METHYLMAGNESIUM BROMIDE SOL., ~3 M IN DI ETHYL ETHER METHYLMAGNESIUM BROMIDE, 1.0M SOLUTION I N BUTYL ETHER |
| CAS | 75-16-1 |
| EINECS | 200-844-1 |
| InChI | InChI=1/CH3.BrH.Mg/h1H3;1H;/q;;+1/p-1/rCH3Mg.BrH/c1-2;/h1H3;1H/q+1;/p-1 |
| InChIKey | AVFUHBJCUUTGCD-UHFFFAOYSA-M |
75-16-1 - Physico-chemical Properties
| Molecular Formula | CH3BrMg |
| Molar Mass | 119.24 |
| Density | 1.035g/mLat 25°C |
| Boling Point | 78-80℃ |
| Flash Point | 77°F |
| Water Solubility | Reacts with water. |
| Appearance | Solution, may develop some turbidity precipitate |
| Color | Pale brown |
| Exposure Limit | ACGIH: TWA 400 ppm; STEL 500 ppmOSHA: TWA 400 ppm(1200 mg/m3)NIOSH: IDLH 1900 ppm |
| BRN | 3535220 |
| Storage Condition | water-free area |
| Sensitive | Air & Moisture Sensitive |
75-16-1 - Risk and Safety
| Risk Codes | R12 - Extremely Flammable R14 - Reacts violently with water R19 - May form explosive peroxides R22 - Harmful if swallowed R34 - Causes burns R66 - Repeated exposure may cause skin dryness or cracking R67 - Vapors may cause drowsiness and dizziness R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R10 - Flammable R65 - Harmful: May cause lung damage if swallowed R63 - Possible risk of harm to the unborn child R48/20 - R14/15 - R11 - Highly Flammable R37 - Irritating to the respiratory system |
| Safety Description | S9 - Keep container in a well-ventilated place. S16 - Keep away from sources of ignition. 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. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.) S36/37 - Wear suitable protective clothing and gloves. S23 - Do not breathe vapour. |
| UN IDs | UN 3399 4.3/PG 1 |
| WGK Germany | 2 |
| RTECS | OM3700000 |
| FLUKA BRAND F CODES | 1-3-10 |
| TSCA | Yes |
| HS Code | 29319090 |
| Hazard Class | 4.3 |
| Packing Group | I |
75-16-1 - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | methyl magnesium bromide is an organometallic compound that can be used as a Grignard reagent. |
| preparation method | dimethyl mercury is prepared by reacting methyl magnesium bromide or methyl lithium with mercury chloride in tetrahydrofuran or diethyl ether. |
| Grignard reagent | The Grignard reagent is generally used in the form of a solution, typically appearing as a light gray to light brown transparent solution. They generally exist in the intermediate state of alkyl magnesium halides (RMgX) and dialkyl magnesium (R2Mg) and are an equilibrium mixture with complex components (referred to as "Schlenk equilibrium"). Some of these species may precipitate due to reduced solubility, but this does not affect their practical use. When the precipitate appears, use it after gently shaking the bottle so that the suspension is well dispersed (if the amount of the precipitate is very small, you can use the supernatant of the suspension). Especially in cold conditions such as winter, a large amount of precipitates may often be generated. In this case, use a dry glass rod after crushing. In addition, you can also put the bottle into a plastic bag and immerse it in a water bath at 40 ° C to dissolve the solid (heating requires a professional to operate, in case of safety hazards, note the evaporation of the organic solvent when the bottle is opened). |
| preparation of tetramethyl germanium | is prepared by reacting germanium tetrachloride with methyl magnesium bromide in dibutyl ether or with dimethyl zinc at low temperature. |
| category | flammable articles in water |
| explosive hazard characteristics | ether explosive |
| flammability hazard characteristics | spontaneous combustion without ether immersion; Ether flammability |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from the oxidant |
| extinguishing agent | dry powder, carbon dioxide |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 18:58:34
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