Benzyl alcohol is one of the simplest aromatic alcohols and can be regarded as phenyl-substituted methanol. In nature, most of it exists in the form of esters in essential oils, such as jasmine oil, hyacinth oil and Peruvian balm.
Basic information
Chinese name benzyl alcohol
CAS NO. 100-51-6
Chinese alias benzyl alcohol; Natural benzyl alcohol; Benzyl alcohol
The English name is Benzyl alcohol
Phenylmethanol; Benzyl alcohol 98+%; Benzyl Alcohol BP; Poly(4-hydroxymethyl)styrene; alpha-Hydroxytoluene; alpha-toluenol; Benzenecarbinol; Benzenemethanol; (hydroxymethyl)benzene; Hydroxytoluene; Phenylcarbinol; Phenylmethyl alcohol; Natural benzyl alcohol
EINECS 202-859-9
Molecular formula C7H8O
InChI = 1 / C7H8O/c8-6-7-4-6-7-4-5-7 / h1-5, 8 H, 6 h2
Physical and chemical properties
Folding physical properties
Appearance and properties: colorless liquid, aromatic.
Melting point (ºC):-15.3
Relative density (water =1):1.04(25ºC)
Boiling point (ºC):205.7
Relative vapor density (air =1):3.72
Relative density (water =1):1.0419
Molecular formula :C7H8O
Molecular weight :108.13
Saturated vapor pressure (kPa):0.13(58ºC)
Flash point (° C):100
Ignition temperature (ºC):436
Solubility: slightly soluble in water, easily soluble in alcohol, ether, aromatics.
Solubility :4^17g/100ml(in water)
Refractive index :1.5396
CAS number :100-51-6
Folding chemistry
It is oxidized or dehydrogenated to form benzaldehyde. Toluene, bibenzyl or methylcyclohexane, cyclohexyl carbinol can be produced by hydrogenation. The corresponding ester is produced by esterification reaction with carboxylic acid. Condensed into resin in the presence of zinc chloride, boron trifluoride, anhydrous boric acid or phosphoric acid and sulfuric acid
Function and use
Benzyl alcohol is a very useful flavor fixing agent, and is an indispensable spice in the preparation of jasmine, moonlit incense, Elam and other flavors. Used for preparing soap; Cosmetics essence for daily use. However, benzyl alcohol can slowly oxidize naturally, and a part of it generates benzaldehyde and benzyl ether, which makes commercially available products often with almond flavor, so it is not suitable for long storage. Benzyl alcohol is widely used in the production of industrial chemicals. Used as coating solvent; Photographic developer; Polyvinyl chloride stabilizer; Medicine; Synthetic resin solvent; Vitamin b injection solvent; A preservative for ointment or liquid medicine. Can be used as nylon wire; Desiccant, dyes for fiber and plastic film; Cellulose ester; Casein solvent for the preparation of benzyl ester or ether intermediates. At the same time, it is widely used in pen making (ballpoint pen oil); Paint solvent, etc.
Benzyl alcohol is a limited preservative in cosmetic components, with a maximum dosage of 1%.
GB 2760--1996 specifies that the use of edible spices is temporarily permitted. It is also a fixing agent and oil solvent. As a spice, it is mainly used to prepare flavors such as berries and nuts. Used for the preparation of flower oil and medicine, and also used as a solvent and fixed fragrance agent for spices; Used as a solvent, plasticizer, preservative, and used in the manufacture of spices, soaps, medicines, dyes, etc.
Risk profile
Health hazards: It has an anesthetic effect and irritates the eyes, upper respiratory tract and skin. Ingestion causes headache, nausea, vomiting, gastrointestinal irritation, convulsions, and coma.
Explosion hazard: The product is flammable, toxic and irritating.
urgent
Security terminology
S26In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Risk terminology R20/22Harmful by inhalation and if swallowed.
Harmful by inhalation and if swallowed.
Rescue measures
Skin contact: Remove contaminated clothing and rinse with plenty of running water.
Eye contact: Lift eyelids and rinse with running water or saline. Seek medical attention.
Inhalation: Remove from site to fresh air. Administer oxygen if breathing is difficult. Seek medical attention.
Ingestion: Drink enough warm water to induce vomiting. Gastric lavage, drainage. Seek medical attention.
Collapsible edit this paragraph fire measures
Dangerous characteristics: flammable in case of open fire, high heat.
Harmful combustion products: carbon monoxide, carbon dioxide.
Fire extinguishing method: Fire fighters should wear gas masks and full-body fire suits to extinguish the fire in the upwind direction. If possible, move the container from the fire to an open area. Spray water to keep the fire container cool until the fire is over. Containers in the fire site must be evacuated immediately if they are discolored or produce sound from the safety relief device.
Fire extinguishing agent: mist water, foam, dry powder, carbon dioxide, sand.
Collapse edit this paragraph for emergency handling
Emergency treatment: quickly evacuate the contaminated area to the safety zone, and isolation, strictly restrict access. Cut off the fire. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and wear protective clothing. Cut off the source of leakage as much as possible. Prevent flowing into sewers, flood drains and other restricted Spaces.
Small leakage: Mix with sand, dry lime or soda ash. It can also be washed with a lot of water and diluted into the waste water system.
Large leakage: build a embankment or dig a pit to contain it. Transfer by pump to tank or special collector, recycling or transport to waste disposal site disposal.
Collapse edit this paragraph action disposal
Operation precautions: closed operation, full ventilation. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that operators wear a self-priming filter gas mask (half mask), chemical safety protective glasses, protective work clothes, and rubber oil-resistant gloves. Keep away from fire and heat. No smoking in the workplace. Use explosion-proof ventilation systems and equipment. Prevents steam from leaking into the workplace air. Avoid contact with oxidants. When handling, light loading and unloading should be done to prevent damage to packaging and containers. Equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment. Empty containers may have harmful residues.
Collapse edit this paragraph to save
Storage precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat. It should be stored separately from oxidants and edible chemicals, and should not be mixed. Equipped with the corresponding variety and quantity of fire equipment. The storage area should be equipped with leak emergency treatment equipment and suitable containment materials.
Fold and edit toxicology data in this paragraph.
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