Molecular Formula | C9H5Br3O2 |
Molar Mass | 384.85 |
Density | 2.055±0.06 g/cm3(Predicted) |
Melting Point | 76.0 to 80.0 °C |
Boling Point | 380.8±42.0 °C(Predicted) |
Storage Condition | 2-8°C |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
use | is a new type of reactive flame retardant, which can be used for plastics, adhesives, coatings, fiber plasticizers, etc. | Production method | (1) Synthesis of acryloyl chloride In a four-port bottle equipped with a reflux condenser and a stirrer, acrylic acid and phosphorus trichloride with a molar ratio of 3:1 are added, and then slowly It is heated to boiling and refluxed for acylation and chlorination. The reaction time is about 15min and the reaction temperature is (75±5)℃. After the reaction, the reactants are slowly cooled to 60~70 ℃, then reacted for 15min, cooled to room temperature and let stand for 2h. The reactants are divided into upper and lower layers. The upper product is separated, about 1g of cuprous chloride is added, and the cuprous chloride is distilled under reduced pressure at 18.7kPa, and the fraction at 30~40 ℃ is collected to obtain acryloyl chloride with a yield of 66%. (2) Synthesis of 2,4, 6-Tribromophenyl acrylate 40g of tribromophenol was added to a four-mouth flask equipped with a reflux condenser and a stirrer, then 40mL of pyridine was added, and tribromophenol was dissolved in pyridine by starting stirring. Then take 45mL of acryloyl chloride prepared in the first step of reaction and put it into a dropping funnel. During the reaction, acryloyl chloride is dropped for 1h, the reaction temperature is controlled at (45±3)℃, and the reaction time is about 12h. After the reaction is over, the reaction product is first rinsed with water, and then recrystallized and purified in acetone to obtain a refined finished product with a yield of 51%. The reaction formula is as follows: |
EPA chemical information | information provided by: ofmpub.epa.gov (external link) |