A6665312
2-Propanethiol , 96% , 75-33-2
Synonym(s):
1-Methylethanethiol;2-Propanethiol;Isopropyl mercaptan
CAS NO.：75-33-2
Empirical Formula: C3H8S
Molecular Weight: 76.16
MDL number: MFCD00004863
EINECS: 200-861-4
Update time: 2022-07-08
PRODUCT 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 | n |
| FEMA | 3897 | 2-PROPANETHIOL |
| Flash point: | <−30 °F |
| storage temp. | Store below +30°C. |
| pka | pK1:10.86 (25°C,μ=0.1) |
| form | Liquid |
| color | Colorless |
| Odor | Powerful skunk. |
| Odor Threshold | 0.000006ppm |
| Odor Type | alliaceous |
| biological source | synthetic |
| Water Solubility | Slightly soluble in water |
| Specific Heat Capacity | Cp(liquid): 145.3 J/(g·K), at 25℃ |
| Sensitive | Air Sensitive |
| JECFA Number | 510 |
| BRN | 605260 |
| Henry's Law Constant | 1.3×10-3 mol/(m3Pa) at 25℃, Brockbank (2013) |
| Stability: | Stable. Highly flammable - note low flashpoint. May form explosive mixtures with air. |
| InChI | 1S/C3H8S/c1-3(2)4/h3-4H,1-2H3 |
| InChIKey | KJRCEJOSASVSRA-UHFFFAOYSA-N |
| SMILES | CC(C)S |
| LogP | 1.60 |
| 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) |
Description and 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.
Safety
| Symbol(GHS) |    GHS02,GHS07,GHS09 |
| Signal word | Danger |
| Hazard statements | H315+H320-H317-H336-H410-H225 |
| Precautionary statements | P501-P261-P273-P272-P240-P210-P233-P243-P241-P242-P271-P264-P280-P370+P378-P391-P337+P313-P305+P351+P338-P362+P364-P303+P361+P353-P333+P313-P304+P340+P312-P403+P233-P403+P235-P405 |
| PPE | Eyeshields, Faceshields, Gloves |
| Hazard Codes | F,Xi |
| Risk Statements | 11-36/37/38-36/38 |
| Safety Statements | 16-26-9-37/39-33 |
| RIDADR | UN 2402 3/PG 2 |
| WGK Germany | 3 |
| RTECS | TZ7302000 |
| F | 13 |
| TSCA | TSCA listed |
| HS Code | 2930 90 98 |
| HazardClass | 3 |
| PackingGroup | II |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Aquatic Acute 1 Aquatic Chronic 1 Flam. Liq. 2 Skin Sens. 1 |
| Hazardous Substances Data | 75-33-2(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |
| REACH Registrations | Active |
| Limited Quantities | 1.0 L (0.3 gallon) (liquid) |
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) |
