| Melting point |
12-16 °C (lit.) |
| Boiling point |
163 °C (lit.) |
| Density |
1.015 g/mL at 25 °C (lit.) |
| vapor density |
>3 (vs air) |
| vapor pressure |
1 mm Hg ( 20 °C) |
| refractive index |
n20/D 1.431(lit.) |
| Flash point |
170 °F |
| storage temp. |
Store at +15°C to +25°C. |
| solubility |
Chloroform, Methanol (Slightly) |
| pka |
pK1:4.66 (25°C) |
| form |
Liquid |
| color |
Clear |
| Odor |
Repulsive |
| PH |
2.0-2.2 (100g/l, H2O, 20℃) |
| explosive limit |
1.6-8.7%(V) |
| Water Solubility |
9.7 g/100 mL (20 ºC) |
| Sensitive |
Moisture & Light Sensitive |
| Merck |
14,5941 |
| BRN |
1719937 |
| Exposure limits |
TLV-TWA 20 ppm (～70 mg/m3) (ACGIH). |
| Stability |
May be stabilized by the addition of MEHQ (Hydroquinone methyl ether, ca. 250 ppm) or hydroquinone. In the absence of a stabilizer this material will readily polymerize. Combustible. Incompatible with strong oxidizing agents, hydrochloric acid. |
| Cosmetics Ingredients Functions |
FILM FORMING |
| Cosmetic Ingredient Review (CIR) |
Methacrylic acid (79-41-4) |
| InChI |
1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6) |
| InChIKey |
CERQOIWHTDAKMF-UHFFFAOYSA-N |
| SMILES |
C=C(C)C(O)=O |
| LogP |
0.93 at 22℃ |
| CAS DataBase Reference |
79-41-4(CAS DataBase Reference) |
| NIST Chemistry Reference |
2-Propenoic acid, 2-methyl-(79-41-4) |
| EPA Substance Registry System |
Methacrylic acid (79-41-4) |
| ECETOC JACC REPORT |
Methacrylic acid (79-41-4) |
