MSDS of 3-Bromobenzaldehyde

Product name: 3-Bromobenzaldehyde 

Synonyms: m-Bromobenzaldehyde, Benzaldehyde, 3-bromo-Benzaldehyde
Appearance: 3-Bromobenzaldehyde is white or light yellow liquid
Package：1kg/drum;20Kg/drum;200Kg/drum
Storage: sealed storage in shady and cool warehouse
Formula: C7H5BrO
Molecular Weight: 185.02
EINECS: 221-526-9
CAS NO.: 3132-99-8
Density: 1.577 g/cm3
Melting Point: 18-21 °C(lit.)
Boiling Point: 235.3 °C at 760 mmHg
Flash Point: 96.1 °C
Solubility: decomposes in water
Risk Codes: 22-36/37/38
Safety: 26-36

3-Bromobenzaldehyde is a white to pale yellow crystal. It is insoluble in water, soluble in ethanol and ether. 3-Bromobenzaldehyde mainly used for spices, dyes and organic synthesis intermediates.Preparation of 3-Bromobenzaldehyde is a bromine toluene as raw material, in the light bromide to generate bromobenzyl bromide compound is hydrolyzed under alkaline conditions, the last steam distillation, cooling and crystallization, washed with cold water and recrystallized from ether derived.

FIRST AID MEASURES
Description of first aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
In case of skin contact
Wash off with soap and plenty of water. Consult a physician.
In case of eye contact
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
Most important symptoms and effects, both acute and delayed
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.

FIREFIGHTING MEASURES
Extinguishing media
Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, hydrogen bromide gas
Advice for firefighters
Wear self contained breathing apparatus for fire fighting if necessary.

ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid breathing vapors, mist or gas. Ensure adequate ventilation.Evacuate personnel to safe areas.
Environmental precautions
Do not let product enter drains.
Methods and materials for containment and cleaning up
Soak up with inert absorbent material and dispose of as hazardous waste. Keep in suitable, closed containers for disposal.

EXPOSURE CONTROLS/PERSONAL PROTECTION
Control parameters
Components with workplace control parameters
Exposure controls
Appropriate engineering controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.
Personal protective equipment
Eye/face protection
Face shield and safety glasses Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove’s outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
Body Protection
Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection
Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).

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Where to buy 3-Bromobenzaldehyde?

Product name: 3-Bromobenzaldehyde 

Synonyms: m-Bromobenzaldehyde, Benzaldehyde, 3-bromo-Benzaldehyde

Appearance: 3-Bromobenzaldehyde is white or light yellow liquid

Package：1kg/drum;20Kg/drum;200Kg/drum 

Storage: sealed storage in shady and cool warehouse

Formula: C7H5BrO

Molecular Weight: 185.02

EINECS: 221-526-9

CAS NO.: 3132-99-8

Density: 1.577 g/cm3

Melting Point: 18-21 °C(lit.)

Boiling Point: 235.3 °C at 760 mmHg

Flash Point: 96.1 °C

Solubility: decomposes in water

Risk Codes: 22-36/37/38

Safety: 26-36

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How to prepare 3-Bromobenzaldehyde

English name: 3-Bromobenzaldehyde

Molecular formula: C7H5BrO

Molecular weight or atomic weight: 185.03

Density: 1.587

Boiling Point (℃): 233 ~ 236

Flash point (℃): 96

CAS No.: 3132 -99-8

3-Bromobenzaldehyde is a white to pale yellow crystal. It is insoluble in water, soluble in ethanol and ether. 3-Bromobenzaldehyde mainly used for spices, dyes and organic synthesis intermediates.

Preparation of 3-Bromobenzaldehyde is a bromine toluene as raw material, in the light bromide to generate bromobenzyl bromide compound is hydrolyzed under alkaline conditions, the last steam distillation, cooling and crystallization, washed with cold water and recrystallized from ether derived. Here are 3 examples for the preparation of 3-Bromobenzaldehyde:

 

EXAMPLE 1
A 500 ml water-cooled glass vessel was fitted with a reflux condenser cooled with a mixture of acetone and solid carbon dioxide, an inlet and an outlet for nitrogen, a propeller stirrer, baffles and a dropping funnel. 200 ml of 1,2 -dichloroethane and 1.3 moles of aluminum chloride were placed in the vessel. Then, 1 mole of benzaldehyde was added slowly from the dropping funnel with stirring. The benzaldehyde formed a complex with aluminum chloride, which complex partly dissolved in the 1,2 -dichloroethane.

In another vessel 0.5 mole of bromine was added to 20 ml of 1,2 -dichloroethane, the vessel being cooled in a mixture of acetone and solid carbon dioxide. 0.5 mole of chlorine was added to the mixture thus formed and subsequently so much 1,2 -dichloroethane was added until the total volume was 100 ml.

The solution of bromine chlorine thus obtained was added over a period of 2 hours and 20 minutes through the dropping funnel to the mixture containing the complex of benzaldehyde and aluminum chloride and the reaction mixture was stirred for a further hour. During the reaction hydrogen chloride escaped from the reflux condenser. The temperature of the reaction mixture was kept between 23 discontinued and the reaction mixture was analyzed by means of gas-liquid chromatography. The conversion of the benzaldehyde was 89 % and the selectivity to 3-bromobenzaldehyde was higher than 99 %.

So much water was mixed with the reaction mixture that the precipitated aluminum hydroxide dissolved. The mixture thus obtained settled into an aqueous layer and an organic layer. The organic layer was separated, washed with 100 ml of water and dried over anhydrous magnesium sulphate. The dried organic layer was boiled down and the residue obtained was separated by distillation into benzaldehyde and a residue of 3 -bromobenzaldehyde, boiling at a temperature of 80 pressure of 1.5 Torr.

EXAMPLE 2
The experiment described in Example 1 was repeated with 1.1 moles of aluminum chloride instead of 1.3 moles. Bromination of benzaldehyde to 3 -bromobenzaldehyde did occur, but less than 2 % of it was converted after 1 hour and less than 5 % after 4 hours’ reaction time.

EXAMPLE 3
The experiment described in Example 1 was repeated with 1.2 moles of aluminum chloride instead of 1.3 moles. After 4 hours’ reaction time about 70 % of the benzaldehyde was converted into 3-bromobenzaldehyde.

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