Isopropylthiol
2-Propanethiol
CAS: 75-33-2
Molecular Formula: C3H8S
Isopropylthiol - Names and Identifiers
| Name | 2-Propanethiol |
| Synonyms | IPM(TM) FEMA 3897 iso-C3H7SH Propanethiol 2-PROPANETHIOL 2-Propanethiol Isopropylthiol propane-2-thiol Propanethiol-(2) 2-PROPYLMERCAPTAN Isopropyl mecaptan Isopropyl mercaptan mercaptanisopropylique |
| CAS | 75-33-2 |
| EINECS | 200-861-4 |
| InChI | InChI=1/C3H8S/c1-3(2)4/h3-4H,1-2H3 |
Isopropylthiol - Physico-chemical Properties
| Molecular Formula | C3H8S |
| Molar Mass | 76.16 |
| Density | 0.82g/mLat 25°C(lit.) |
| Melting Point | −131°C(lit.) |
| Boling Point | 57-60°C(lit.) |
| Flash Point | <−30°F |
| JECFA Number | 510 |
| Water Solubility | Slightly soluble in water |
| Vapor Presure | 455 mm Hg ( 37.8 °C) |
| Vapor Density | 2.6 (vs air) |
| Appearance | Liquid |
| Color | Colorless |
| Odor | Powerful skunk. |
| BRN | 605260 |
| pKa | pK1:10.86 (25°C,μ=0.1) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Highly flammable - note low flashpoint. May form explosive mixtures with air. |
| Sensitive | Air Sensitive |
| Refractive Index | n20/D 1.426(lit.) |
Isopropylthiol - Risk and Safety
| Risk Codes | R11 - Highly Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. R36/38 - Irritating to eyes and skin. |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S9 - Keep container in a well-ventilated place. S37/39 - Wear suitable gloves and eye/face protection S33 - Take precautionary measures against static discharges. |
| UN IDs | UN 2402 3/PG 2 |
| WGK Germany | 3 |
| RTECS | TZ7302000 |
| FLUKA BRAND F CODES | 13 |
| TSCA | Yes |
| HS Code | 2930 90 98 |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |
Isopropylthiol - Reference Information
| FEMA | 3897 | 2-PROPANETHIOL |
| olfactory Threshold | 0.000006ppm |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| toxicity | GRAS(FEMA). |
| usage limit | FEMA(mg/kg): baked goods, non-alcoholic beverages, breakfast cereals, cold drinks, sauces, meat products, dairy products, soft candy, soup, sweet sauce, 0.1~5.0; Flavoring 20~200. |
| category | flammable liquid |
| toxicity grade | poisoning |
| Acute toxicity | inhalation-mouse LC50: 130000 mg/m3/1 h |
| flammability hazard characteristics | in case of open flame, high temperature, flammable oxidant; In case of acid, production of toxic sulfur oxide gas from water |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Stored separately from oxidants and acids |
| extinguishing agent | dry powder, dry sand, carbon dioxide, foam |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:04:16
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