BroMoisopropylMagnesiuM
Isopropylmagnesium Bromide
CAS: 920-39-8
Molecular Formula: C3H7BrMg
BroMoisopropylMagnesiuM - Names and Identifiers
| Name | Isopropylmagnesium Bromide |
| Synonyms | BroMoisopropylMagnesiuM Isopropylbromomagnesium Isopropylmagnesium Bromide bromo(propan-2-yl)magnesium Bromo(1-methylethyl)magnesium Magnesium, bromo(1-methylethyl)- propan-2-ylmagnesium(1+) bromide IsopropylMagnesiuM broMide solution Isopropylmagnesium bromide [1M solution in THF] Isopropylmagnesium bromide,3M solution in 2-Methyltetrahydrofuran Isopropylmagnesium bromide solution 2.9 M in 2-methyltetrahydrofuran Isopropylmagnesium bromide, 3M solution in 2-Methyltetrahydrofuran, AcroSeal Isopropylmagnesium bromide, 3M solution in 2-Methyltetrahydrofuran, AcroSeal§3 |
| CAS | 920-39-8 |
| EINECS | 213-056-8 |
| InChI | InChI=1/C3H7.BrH.Mg/c1-3-2;;/h3H,1-2H3;1H;/q;;+1/p-1/rC3H7Mg.BrH/c1-3(2)4;/h3H,1-2H3;1H/q+1;/p-1 |
| InChIKey | UCJIVFREPMUZDC-UHFFFAOYSA-M |
BroMoisopropylMagnesiuM - Physico-chemical Properties
| Molecular Formula | C3H7BrMg |
| Molar Mass | 147.3 |
| Density | 0.982 g/mL at 25 °C |
| Melting Point | 114-116℃ |
| Boling Point | 148-154℃ |
| Flash Point | -17°C |
| Solubility | Miscible with tetrahydorfuran and diethyl ether. Immiscible with hydrocarbons. |
| Appearance | Solution |
| Color | Clear dark brown or dark gray |
| Storage Condition | 2-8°C |
| Sensitive | Air & Moisture Sensitive |
BroMoisopropylMagnesiuM - Risk and Safety
| Risk Codes | R11 - Highly Flammable R19 - May form explosive peroxides R34 - Causes burns R14/15 - R40 - Limited evidence of a carcinogenic effect R37 - Irritating to the respiratory system R17 - Spontaneously flammable in air R14 - Reacts violently with water |
| 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. S27 - Take off immediately all contaminated clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.) S39 - Wear eye / face protection. S37 - Wear suitable gloves. S36 - Wear suitable protective clothing. |
| UN IDs | 3399 |
| WGK Germany | 2 |
| TSCA | Yes |
| HS Code | 29319090 |
| Hazard Class | 4.3 |
| Packing Group | I |
BroMoisopropylMagnesiuM - Nature
| melting point | 114-116℃ |
| boiling point | 148-154℃ |
| density | 0.982 g/mL at 25 °C |
| flash point | -17°C |
| storage conditions | 2-8°C |
| solubility | Miscible with tetrahydorfuran and diethyl ether. Immiscible with hydrocarbons. |
| morphology | Solution |
| color | Clear dark brown or dark gray |
| sensitivity | Air & Moisture Sensitive |
| InChIKey | UCJIVFREPMUZDC-UHFFFAOYSA-M |
| EPA chemical information | Magnesium, bromo(1-methylethyl)- (920-39-8) |
Last Update：2024-04-10 22:29:15
BroMoisopropylMagnesiuM - Introduction
Magnesium isopropyl bromide is a commonly used Grignard reagent. Grignard reagent is an organomagnesy reagent formed by the reaction of organic halogen compounds (halogenated alkanes, active halogenated aromatic hydrocarbons) and metallic magnesium in an absolute anhydrous solvent. Commonly used halogenated hydrocarbons and magnesium powder are prepared by reacting in anhydrous ether or tetrahydrofuran (THF). The preparation process must be absolutely anhydrous, no carbon dioxide, no ethanol and other substances with active hydrogen (such as: water, alcohol, Ammonia NH3, hydrogen halide, terminal alkyne, etc.) under conditions.
Last Update：2024-04-10 22:29:15
BroMoisopropylMagnesiuM - Security information
| dangerous goods mark | F,C |
| hazard category code | 11-19-34-14/15-40-37-17-14 |
| safety instructions | 16-26-27-36/37/39-45-43-39-37-36 |
| dangerous goods transport number | 3399 |
| WGK Germany | 2 |
| TSCA | Yes |
| HazardClass | 4.3 |
| PackingGroup | I |
| customs code | 29319090 |
Last Update：2024-04-10 22:29:15
BroMoisopropylMagnesiuM - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | isopropyl magnesium bromide is a commonly used Grignard reagent. Grignard reagent is the organic halogen compounds (alkyl halides, active halogenated aromatic hydrocarbons) and magnesium metal in absolute anhydrous solvent reaction to form organic magnesium reagent. Commonly used halogenated hydrocarbons and magnesium powder in anhydrous ether or tetrahydrofuran (THF) reaction in the preparation of process must be absolutely anhydrous, no carbon dioxide, it is carried out without a substance having active hydrogen such as ethanol (e. G., water, alcohol, ammonia NH3, hydrogen halide, terminal alkyne, etc.). |
| preparation | replace 3 times with nitrogen in a 500L reactor, add 25.25kg of magnesium ball (0.8), add 100L of 2-methyltetrahydrofuran and 2kg of initiator (2-Bromopropane Grignard reagent), heat to 60-65 degrees reflux, slowly drop a mixture of 123kg 2-Bromopropane and 120L 2-methyltetrahydrofuran at 50-60 degrees to make a clear, clear, light brown to light gray liquid, reflux 2 hours after completion of dropping , acid-base titration concentration is 3.02mol, cooling to about 10 degrees, static sedimentation 24 hours, a small amount of black suspended solids and sediment deposition at the bottom of the reactor, no other solid was precipitated, and the supernatant was pressed into the cylinder. |
Last Update：2024-04-10 22:29:15
BroMoisopropylMagnesiuM - Preparation
replace nitrogen three times in a 500L reaction kettle, add 25.25kg of magnesium balls (0.8cm), add 100L 2-methyltetrahydrofuran and 2kg of initiator (2-bromopropane Grignard reagent), heat to 60-65 degrees for reflux, slowly add 123kg 2-bromopropane and 120L 2-methyltetrahydrofuran dropwise at 50-60 degrees to prepare clear and transparent light brown to light gray, the acid-base titration concentration is 3.02mol, the temperature is reduced to about 10 degrees, and the static settlement is 24 hours. A small amount of black suspended matter and precipitate are deposited on the bottom of the reaction kettle, and no other solids are precipitated. The supernatant is pressed into the steel cylinder.
Last Update：2024-04-10 22:29:15
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