1639-09-4
1-Heptanethiol
CAS: 1639-09-4
Molecular Formula: C7H16S
1639-09-4 - Names and Identifiers
| Name | 1-Heptanethiol |
| Synonyms | MERCAPTAN C7 Heptanethiol n-heptylthiol 1-heptanthiol 1-HEPTANETHIOL 1-Heptanethiol heptane-1-thiol HEPTYL MERCAPTAN 1-HEPTYL MERCAPTAN N-HEPTYL MERCAPTAN n-Heptyl mercaptan Normal-heptyl mercaptan |
| CAS | 1639-09-4 |
| EINECS | 216-678-8 |
| InChI | InChI=1/C7H16S/c1-2-3-4-5-6-7-8/h8H,2-7H2,1H3 |
1639-09-4 - Physico-chemical Properties
| Molecular Formula | C7H16S |
| Molar Mass | 132.27 |
| Density | 0.844 g/mL at 25 °C (lit.) |
| Melting Point | -43°C |
| Boling Point | 173-176 °C/765 mmHg (lit.) |
| Flash Point | 115°F |
| JECFA Number | 1663 |
| Solubility | 0.009g/l |
| Vapor Presure | 1.47mmHg at 25°C |
| Appearance | clear liquid |
| Color | Colorless to Almost colorless |
| Exposure Limit | NIOSH: Ceiling 0.5 ppm(2.7 mg/m3) |
| BRN | 1731687 |
| pKa | 10.76±0.25(Predicted) |
| Storage Condition | Store below +30°C. |
| Sensitive | Air Sensitive |
| Explosive Limit | 0.9%(V) |
| Refractive Index | n20/D 1.4505(lit.) |
1639-09-4 - Risk and Safety
| Risk Codes | 10 - Flammable |
| Safety Description | S23 - Do not breathe vapour. S16 - Keep away from sources of ignition. |
| UN IDs | UN 3336 3/PG 3 |
| WGK Germany | 3 |
| RTECS | MJ1400000 |
| FLUKA BRAND F CODES | 9-13-23 |
| TSCA | Yes |
| HS Code | 29309070 |
| Hazard Class | 6.1 |
| Packing Group | II |
1639-09-4 - Reference Information
| FEMA | 4259 | HEPTANE-1-THIOL |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| category | flammable liquid |
| toxicity grade | poisoning |
| Acute toxicity | intraperitoneal-mouse LD50: 200 mg/kg |
| flammability hazard characteristics | in case of open flame, high temperature, flammable oxidant; Toxic sulfur oxide smoke produced by combustion; In case of acid, toxic sulfide 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 |
| Occupational Standard | CL AIR 0.5 ppm/15 min |
Last Update：2024-04-10 22:29:15
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