| Product Identification | Back to Contents | 【Product Name】
4-Methoxyphenol | 【Synonyms】
Hydroxyquinone, monomethyl ether
Mequinol
p-Hydroxyanisole
p-Methoxyphenol | 【CAS】
150-76-5 | 【Formula】
C7H8O2 | 【Molecular Weight】
124.14 | 【EINECS】
205-769-8 | 【RTECS】
SL7700000 | 【RTECS Class】
Mutagen; Primary Irritant | 【Beilstein/Gmelin】
507924 | 【Beilstein Reference】
4-06-00-05717 | 【EC Index Number】
604-044-00-7 | 【EC Class】
Harmful; Irritant; Sensitising |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
White to off-white waxy solid or flaky, crystalline material. Odor of caramel and phenol. | 【Solubility in water】
40 g/L | 【Melting Point】
55 - 57 | 【Boiling Point】
243 | 【Vapor Pressure】
0.02 (25 C) | 【Density】
1.55 g/cm3 (20 C) | 【pKa/pKb】
10.40 (pKa) | 【Partition Coefficient】
1.58 | 【Heat Of Vaporization】
49.9 kJ/mol | 【Usage】
Manufacture of antioxidants, pharmaceuticals, plasticizers, dyestuffs, uv inhibitor, stabilizer for chlorinated hydrocarbons & ethyl cellulose, inhibitor for acrylic monomers & acrylonitriles. | 【Vapor Density】
4.2 | 【Saturation Concentration】
<13 ppm at 25 C (calculated) |
| First Aid Measures | Back to Contents | 【Ingestion】
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid. | 【Inhalation】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. | 【Skin】
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | 【Eyes】
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. |
| Handling and Storage | Back to Contents | 【Storage】
Store in a cool, dry place. Store in a tightly closed container. | 【Handling】
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Inhalation】
May cause respiratory tract irritation. | 【Skin】
Causes skin irritation. May cause depigmentation of the skin. | 【Eyes】
Causes eye irritation. May cause eye burns. | 【Ingestion】
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. May be harmful if swallowed. | 【Hazards】
Combustible | 【EC Risk Phrase】
R 22 36 43 | 【EC Safety Phrase】
S 24/25 26 37/39 46 | 【UN (DOT)】
3335 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. | 【Respirators】
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. | 【Exposure Effects】
Chronic exposure may cause visual disturbances. Prolonged contact may cause severe eye irritation or burns. | 【Exposure limit(s)】
NIOSH REL: TWA 5 mg/m3 | 【Poison Class】
4 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
121 | 【Autoignition】
445 | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular foam. | 【Upper exp. limit】
9.6 | 【Lower exp. limit】
1.3 | 【Fire Potential】
Combustible. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
3 | 【Incompatibilities】
Acid anhydrides, acid chlorides, bases, oxidizing agents. | 【Stability】
Stable under normal temperatures and pressures. | 【Decomposition】
Carbon monoxide, carbon dioxide. |
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