CAS RN: 1826-67-1 | Product Number: V0053
Vinylmagnesium Bromide (14% in Tetrahydrofuran, ca. 1mol/L)
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Grignard reagents are organometallic compounds discovered by a French chemist, Victor Grignard in 1900. These compounds can be obtained as a formula “RMgX” by the reaction of halogenated hydrocarbons with magnesium metal in anhydrous solvents such as diethyl ether,1) and have been widely used in organic synthesis.
Grignard reagents are usually used as solutions, and they are typically grayish white ~ light brown clear solutions. They generally exist in an equilibrium between alkyl magnesium halides (RMgX) and dialkyl magnesium (R2Mg), which form equilibrium mixtures with complicated compositions (called “Schlenk equilibrium”).2) Furthermore, some of these species may cause precipitation due to their lower solubility. However, there is no problem in actual use.
In the case of precipitation being formed:
Please use it after gently shaking the bottle to fully disperse the suspension (If the amount of precipitation is very small, you can use the top clear layer of the suspension). Especially in cold conditions such as in winter, a large amount of precipitate may frequently form. In this case, please use it after crushing the solid with a dried glass stick. Alternatively, you can also use it the following. The bottle is put into a plastic bag and soaking in a water bath with warming at 40 degree C to dissolve the solid. Please be careful of volatilization of the organic solvent when the bottle is unsealing.
1) Kagaku Daijiten (Encyclopaedia Chimica), Kyoritsu Shuppan, Tokyo, 1963, Vol. 3, p. 123.
2) Yuki Kinzoku no Kagaku to Oyo, ed. by Kinki Kagaku Kogyokai Yuki Kinzoku Bukai, Asakura Publishing, Tokyo, 1962, p. 160.
|Concentration(sec Butanol method)||13.5 to 16.0 w/w%|
|Specific Gravity (20/20)||0.96|
|Hazard Statements||H302 : Harmful if swallowed.
H314 : Causes severe skin burns and eye damage.
H371 : May cause damage to organs.
H372 : Causes damage to organs through prolonged or repeated exposure.
H351 : Suspected of causing cancer.
H335 : May cause respiratory irritation.
H225 : Highly flammable liquid and vapour.
H260 : In contact with water releases flammable gases which may ignite spontaneously.
|Precautionary Statements||P260 : Do not breathe dust/ fume/ gas/ mist/ vapours/ spray.
P231 + P232 : Handle and store contents under inert gas. Protect from moisture.
P210 : Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
P302 + P335 + P334 : IF ON SKIN: Brush off loose particles from skin. Immerse in cool water.
P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.
P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor.
|Class||4.3 / 3|
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