Allyl methacrylate

admin 5月 11th, 2024 News

Allyl methacrylate structural formula

Structural formula

Business number	02AB
Molecular formula	C7H10O2
Molecular weight	126.15
label	Allyl methacrylate, Allyl methacrylate, Thacrylic acid allyl ester

Numbering system

CAS number:96-05-9

MDL number:MFCD00008592

EINECS number:202-473-0

RTECS number:UD3483000

BRN number:1747406

PubChem number:24882664

Physical property data

1. Properties: slightly yellow liquid.

2. Density (g/mL, 20?): 0.938

3. Relative vapor density (g/mL, air=1): Undetermined

4. Melting point (ºC): -65

5. Boiling point (ºC, normal pressure): 144

6. Boiling point (ºC, 43mmHg): 59-61

7. Refractive index (n²⁰): 1.436

8. Flash point (ºC): 37

9. Specific rotation ( º): Undetermined

10. Autoignition point or ignition temperature (ºC): Undetermined

11. Vapor pressure (mmHg, 20ºC): 4.6

12. Saturated vapor pressure (kPa, ºC): Undetermined

13. Heat of combustion (KJ/mol): Undetermined

14. Critical temperature (ºC): Undetermined

15. Critical pressure (KPa): Undetermined

16. Log value of oil-water (octanol/water) partition coefficient: Undetermined

17. Explosion upper limit (%, V/V): Undetermined

18. Explosion lower limit (%, V/V): Undetermined

19. Solubility: Easily soluble in most organic matter Solvent, almost insoluble in water.

Toxicological data

1. Skin/eye irritation

Standard Draize test: rabbit, skin contact: 20mg/24H, severity of reaction: moderate.

Standard Draize test: Rabbit, eye contact: 500mg/24H, severity of reaction: mild.

2. Acute toxicity: Rat oral LD50: 70mg/kg; Rat inhalation LC50: 1800mg/m³; Mouse oral LD50: 57mg/kg; Mouse inhalation LC50: 5500mg/m³; rabbit skin contact LD50: 500?g/kg;

Ecological data

This substance is slightly hazardous to water.

Molecular structure data

1. Molar refractive index: 35.54

2. Molar volume (cm³/mol): 137.5

3. Isotonic specific volume (90.2K ): 309.5

4. Surface tension (dyne/cm): 25.6

5. Polarizability (10-24cm3): 14.09

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 1.7

2. Number of hydrogen bond donors???0

3. Number of hydrogen bond acceptors: 2

4. Number of rotatable chemical bonds: 4

5. Number of tautomers:

6. Topological molecular polar surface area (TPSA): 26.3

7. Number of heavy atoms: 9

8. Surface charge: 0

9. Complexity: 136

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. No Determine the number of atomic stereocenters: 0

13. Determine the number of chemical bond stereocenters: 0

14. Uncertain number of chemical bond stereocenters: 0

15. Number of covalent bond units: 1

Properties and stability

1. Avoid contact with oxidants.

2. Flammable, harmful when taken orally or in contact with skin, and irritating to eyes, respiratory system and skin.

Storage method

1. Store in a cool, ventilated warehouse. Keep away from fire, heat sources and anti-static. The packaging is sealed. should be kept away from oxidizer, do not store together. Equipped with the appropriate variety and quantity of fire equipment. Suitable materials should be available in the storage area to contain spills.

Synthesis method

It can be obtained from the reaction of acrylamide and allyl alcohol under the action of concentrated acid and H₂O₂, or it can be obtained from allyl acetate and methyl methacrylate. Derived from transesterification. It can also be produced by reacting methacrylic acid with allyl alcohol, using p-toluenesulfonic acid as a catalyst and refluxing in the presence of the polymerization inhibitor hydroquinone. During the reaction, the generated water is continuously removed. After the reaction is completed, the excess is recovered by fractionation. Allyl alcohol, the product was purified by distillation under reduced pressure.

Purpose

1. Widely used as comonomer, grafting monomer and cross-linking agent for tooth repair in the preparation of organic glass.

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