Methacrylic acid, dodecyl ester
dodecyl methacrylate
CAS: 142-90-5
Molecular Formula: C16H30O2
Methacrylic acid, dodecyl ester - Names and Identifiers
Methacrylic acid, dodecyl ester - Physico-chemical Properties
| Molecular Formula | C16H30O2 |
| Molar Mass | 254.41 |
| Density | 0.868 g/mL at 25 °C (lit.) |
| Melting Point | -7 °C (lit.) |
| Boling Point | 142 °C/4 mmHg (lit.) |
| Flash Point | >230°F |
| Water Solubility | insoluble |
| Vapor Presure | 0.06Pa at 20℃ |
| Appearance | Liquid |
| Color | Clear light yellow |
| BRN | 1708160 |
| Storage Condition | Inert atmosphere,2-8°C |
| Refractive Index | n20/D 1.445(lit.) |
Methacrylic acid, dodecyl ester - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S28 - After contact with skin, wash immediately with plenty of soap-suds. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S28B - |
| UN IDs | UN 3082 9/PG 3 |
| WGK Germany | 2 |
| RTECS | OZ4300000 |
| HS Code | 29161490 |
| Hazard Class | 9 |
| Packing Group | III |
Methacrylic acid, dodecyl ester - Nature
Open Data Verified Data
lauryl methacrylate is a colorless liquid; Its relative density is 0. 872; Boiling point (0.93kPa)160 °c; Flash Point (open) 150 °c; Melting point 22 °c; Refractive index 1. 4550; Solubility parameter 16. 8J/cm3.
Last Update：2024-01-02 23:10:35
Methacrylic acid, dodecyl ester - Preparation Method
Open Data Verified Data
prepared by esterification of a mixture of methacrylic acid and a higher alcohol mainly containing lauryl alcohol or by transesterification of methyl methacrylate with lauryl alcohol.
Last Update：2022-01-01 11:08:01
Methacrylic acid, dodecyl ester - Use
Open Data Verified Data
A monomer, a deodorant (monomer itself), a lubricating oil additive, a finishing agent for leather and fibers, a paper finishing agent, an adhesive, an internal plasticizer, and the like for producing an acrylic resin.
Last Update：2022-01-01 11:08:02
Methacrylic acid, dodecyl ester - Safety
Open Data Verified Data
can be used in plastic barrels, can also be used in oil.
Last Update：2022-01-01 11:08:02
Methacrylic acid, dodecyl ester - Reference Information
| LogP | 6.68 at 20℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | monomer for acrylic resin, deodorant, lubricant additive, leather and fiber finishing agent, paper finishing agent, adhesive, internal plasticizer. crude oil pour point depressant, fabric finishing agent, leather additive, internal plasticizer, oil absorbing resin, smart material with "temperature switch" characteristics, thickener, retanning fatliquor, leveling agent adhesive, deodorant, lubricant additives, leather and fiber finishing agents, paper finishing agents, inks, coatings, pharmaceutical and other additives. |
| production method | 1. Preparation: In the reaction flask equipped with Wechsler column, add methyl methacrylate (2)120.2g(1.2mol), lauryl alcohol 74.6g(0.4mol), hydroquinone 5.5g, P-toluenesulfonic acid 2G (or concentrated sulfuric acid 0.5), inert gas replacement 3 times. Under magnetic stirring, the mixture was heated and refluxed for 6-10H, during which an azeotrope of methanol and methyl methacrylate was continuously distilled, with a boiling point of 55-65 ° C. Until there was no distillate. The remaining small amount of methyl methacrylate was distilled off by the water pump under reduced pressure. It was cooled, washed with saturated sodium bicarbonate solution and water successively, and dried over anhydrous sodium sulfate. A small amount of phenothiazine was added and fractionated under reduced pressure to obtain 140g of compound (1) in a yield of 145 by collecting a fraction of 92% ° C./532Pa. [1] |
| category | flammable liquid |
| toxicity grade | low toxicity |
| Acute toxicity | intraperitoneal-rat LD50: 12000 mg/kg; Intraperitoneal-mouse LD50: 25000 mg/kg |
| stimulation data | Skin-rabbits 500 mg/24 h mild; eye-rabbit 500 mg/24 h mild |
| flammability hazard characteristics | flammable; Spicy and irritating smoke emitted from fire scene |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from the oxidant |
| extinguishing agent | dry powder, carbon dioxide; 1211; Foam |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-07-11 12:57:06
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