Other grades of this product :
| 2-Propanethiol Basic information |
| Product Name: | 2-Propanethiol | | Synonyms: | 2-PROPANETHIOL;2-PROPYLMERCAPTAN;iso-C3H7SH;Isopropylthiol;mercaptanisopropylique;Propanethiol-(2);FEMA 3897;IPM(TM) | | CAS: | 75-33-2 | | MF: | C3H8S | | MW: | 76.16 | | EINECS: | 200-861-4 | | Product Categories: | thiol Flavor | | Mol File: | 75-33-2.mol |
| 2-Propanethiol Chemical Properties |
| Melting point | −131 °C(lit.) | | Boiling point | 57-60 °C(lit.) | | density | 0.82 g/mL at 25 °C(lit.) | | vapor density | 2.6 (vs air) | | vapor pressure | 455 mm Hg ( 37.8 °C) | | refractive index | n20/D 1.426(lit.) | | FEMA | 3897 | 2-PROPANETHIOL | | Fp | <−30 °F | | storage temp. | Store below +30°C. | | form | Liquid | | pka | pK1:10.86 (25°C,μ=0.1) | | color | Colorless | | Odor | Powerful skunk. | | Odor Threshold | 0.000006ppm | | Water Solubility | Slightly soluble in water | | Sensitive | Air Sensitive | | JECFA Number | 510 | | BRN | 605260 | | Stability: | Stable. Highly flammable - note low flashpoint. May form explosive mixtures with air. | | CAS DataBase Reference | 75-33-2(CAS DataBase Reference) | | NIST Chemistry Reference | 2-Propanethiol(75-33-2) | | EPA Substance Registry System | Isopropyl mercaptan (75-33-2) |
| 2-Propanethiol Usage And Synthesis |
| Chemical Properties | liquid with an exceedingly unpleasant smell | | Occurrence | 2-Propanethiol is a volatile sulfur compound that is reported to occur in irradiated beef. | | Uses | 2-Propanethiol is used in preparation of polyol block copolymer. It is also used as standard for petroleum analysis; as intermediate; as natural gas odorant. | | Definition | ChEBI: 2-Propanethiol is an alkanethiol that is propane substituted by a sulfanyl group at position 2. | | Preparation | 2-Propanethiol is synthesised by the reaction of sodium hydrosulfide and brominated isopropane. | | General Description | Isopropyl mercaptan is a white liquid with a strong skunk-like odor. (USCG, 1999) | | Air & Water Reactions | Highly flammable. Soluble in water. | | Reactivity Profile | 2-Propanethiol is incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials generate heat and in many cases hydrogen gas. May liberate hydrogen sulfide when mixed with an acid. | | Hazard | Highly flammable, dangerous fire hazard. | | Health Hazard | Inhalation causes loss of sense of smell, muscular weakness, convulsions, respiratory paralysis. Ingestion causes nausea and vomiting. Contact with eyes or skin causes irritation. | | Purification Methods | Purify it as for propane-1-thiol above. [Beilstein 1 IV 1498.] |
| 2-Propanethiol Preparation Products And Raw materials |
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