742805

Methanethiol

≥98.0%

• Synonym(s): Mercaptan C₁, Methyl mercaptan
• Linear Formula: CH₃SH
• CAS Number: 74-93-1
• Molecular Weight: 48.11
• Beilstein: 1696840
• EC Number: 200-822-1
• MDL number: MFCD00004866
• UNSPSC Code: 12142100
• PubChem Substance ID: 329765592
• NACRES: NA.22

Properties

• vapor density: 1.66 (vs air)
• vapor pressure: 1536 mmHg ( 20 °C)
• Assay: ≥98.0%
• form: gas
• expl. lim.: 21.8 %
• bp: 6 °C (lit.)
• mp: −123 °C (lit.)
• SMILES string: CS
• InChI: 1S/CH4S/c1-2/h2H,1H3
• InChI key: LSDPWZHWYPCBBB-UHFFFAOYSA-N

Description

Application

Methanethiol may be used in the synthesis of 1,3-bis(methylthio)-2-propanol from epichlorohydrin. It can undergo steam reforming over cerium oxide to form hydrogen-rich gases (hydrogen, carbon monoxide and carbon dioxide).

Packaging

500ml high pressure aluminum cylinder equipped with a stainless steel valve according to DIN 477-1.

Other Notes

For 742805-400G-EU packaging: 1000 mL of aluminium cylinder equipped with stainless steel valve.

Recommended products

For 742805-400G-EU: outlet fitting: DIN 477-1 no. 1, Z742162 or Z742164 are the recommended regulators.

Safety Information

• Pictograms: GHS02,GHS04,GHS06,GHS09
• Signal Word: Danger
• Hazard Statements: H220,H280,H331,H410
• Precautionary Statements: P210 - P261 - P273 - P304 + P340 + P311 - P403 + P233 - P410 + P403
• Hazard Classifications: Acute Tox. 3 Inhalation - Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Gas 1A - Press. Gas Liquefied gas
• Storage Class Code: 2A - Gases
• WGK: WGK 3
• Flash Point(F): -0.4 °F - closed cup
• Flash Point(C): -18 °C - closed cup