| [Flash Point] 60 | |
| [Fire Fighting] Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Will burn if involved in a fire. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water. | |
| [Fire Potential] HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. | |
| [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. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. | |
| [Eyes] Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. | |
| [Storage] Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area. | |
| [Handling] Wash thoroughly after handling. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Use only in a chemical fume hood. Wash clothing before reuse. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. | |
| [Inhalation] The toxicological properties of this substance have not been fully investigated. Vapors may cause dizziness or suffocation. Causes upper respiratory tract irritation. Causes irritation of the mucous membrane. | |
| [Skin] Causes skin irritation. | |
| [Eyes] Causes eye irritation. | |
| [Ingestion] May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated. | |
| [Hazards] Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. | |
| [EC Risk Phrase] R 23/25 36/37/38 | |
| [EC Safety Phrase] S 23 26 36/37 45 | |
| [UN (DOT)] 1993 | |
| [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] A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. | |
| [Exposure Effects] The toxological properties of this substance have not been fully investigated. | |
| [Appearance] Liquid with a stench | |
| [Solubility in water] Soluble | |
| [Melting Point] -60 | |
| [Boiling Point] 54 | |
| [Density] 1.085 g/cm3 (20 C) | |
| [pKa/pKb] 9.16 (pKa) | |
| [Partition Coefficient] .38 | |
| [Vapor Density] 4.14 | |
| [Refractive Index] 1.4640 (20 C) | |
| [Product Name] 3-Mercaptopropionic acid methyl ester | |
| [Synonyms] 3-Mercaptopropionic acid methyl ester Methyl 3-sulfanylpropanoate Propanoic acid, 3-mercapto-, methyl ester | |
| [CAS] "CASEN_2935-90-2.htm">2935-90-2 | |
| [Formula] C4H8O2S | |
| [Molecular Weight] 120.18 | |
| [EINECS] 220-912-4 | |
| [RTECS] UA2465980 | |
| [RTECS Class] Other | |
| [Beilstein/Gmelin] 1742952 | |
| [Beilstein Reference] 3-03-00-00553 | |
| [Small spills/leaks] Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors. | |
| [Stability] Stable under normal temperatures and pressures. | |
| [Incompatibilities] Strong oxidizing agents, strong bases. | |
| [Decomposition] Carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide. | |
| [Combustion Products] Fire may produce irritating, corrosive and/or toxic gases. | |
| [UN Number] 1993 | |
| [Hazard Class] 3 | |
| [Packing Group] I; II; III |
Print