99% Composite Synthesis Dimethyl Phthalate

1. Introduction of Dimethyl Phthalate

Dimethyl phthalate (Dimethyl phthalate), is a kind of organic matter, molecular formula is C10H10O4, molecular weight is 194.19, colorless transparent yellow oily liquid, slightly aromatic taste, can be miscible with ethanol, ether and other general organic solvents, insoluble in water and petroleum ether.

Used as gas chromatographic fixing solution; This product is a kind of plasticizer with strong dissolving power in many kinds of resin, and can be dissolved in many kinds of cellulose resin, rubber, vinyl resin, and has good film forming, adhesion and waterproof property. It is often used with diethyl phthalate in the production of cellulose acetate film, varnish, transparent paper and molding powder. A small amount is used in the production of nitrocellulose. It can also be used as a plasticizer for nitrile rubber. The product can also be used as mosquito repellent oil (crude oil), polyvinyl fluoride coating, methyl ethyl ketone peroxide and DDT solvent.

2. Properties of Dimethyl Phthalate

Security term

S53Avoid exposure - obtain special instructions before use.

S45In case of accident or if you feel unwell， seek medical advice immediately (show the label whenever possible.)

S61Avoid release to the environment. Refer to special instructions / safety data sheets.

S36/37 Wear suitable protective clothing and gloves.

S16 Keep away from sources of ignition.

Risk term

R61May cause harm to the unborn child.

R50Very toxic to aquatic organisms.

R62Risk of impaired fertility.

R11 Highly flammable.

R23/24/25 Toxic by inhalation， in contact with skin and if swallowed.

Emergency response editor broadcast

Leaking disposal

Cut off the fire. Emergency personnel wear self-contained breathing apparatus and overalls. Stop leakage as long as safety is ensured. It is mixed with sand or other non-combustible adsorbent and then collected and transported to the waste disposal site or, where safety is ensured, incinerated on site. If a large number of leakage, the use of embankment reception, and then collect, transfer, recycling or harmless treatment after the waste.

Protective measures

Provide good natural ventilation conditions. In general, no protection is required, but in special cases, wear a gas mask. If necessary, wear safety glasses and overalls. Hands generally do not need special protection. Wear an industrial Type A gas mask when there is A high concentration of the product in the air, and use A filter when fog is present. Use filter type A gas mask. When synthesizing and applying the product, especially when heating the product or plastics containing the product, seal to prevent steam and mist from escaping. No smoking at work site, keep good hygiene habits.

First aid measures

Skin contact, take off contaminated clothing, rinse with running water.

Eye contact, immediately open upper and lower eyelids, rinse with running water. Inhaler is removed from site to fresh air. Give oxygen when breathing is difficult. When breathing stops, give artificial respiration immediately. Take it by mistake to drink enough warm water, urge Boston, medical treatment.

Waste disposal: incineration is recommended.

Fire extinguishing method: spray water, foam, carbon dioxide, dry powder, sand.

Storage conditions editor broadcast

Dimethyl phthalate is sensitive to light and not easy to see light for a long time. This product should be stored in a cool, dry and ventilated place to prevent physical deterioration. It should be stored separately from incompatibable substances. The empty container may contain its residual steam and liquid, and there is a possibility of danger. When the product is heated and the temperature reaches above the flash point, it is easy to cause fire risk and can form an explosive air mixture. Dimethyl phthalate is thermally degraded to carbon monoxide and carbon dioxide. Acetone, dimethyl sulfoxide, ethanol (95%) and aqueous solution were stable within 24 hours under normal laboratory conditions.