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methanethiol

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Origem: China

Cas No: 74-93-1

Especificação: 99%Min

Quantidade de ordem min: 1 /kg

Capacidade de fornecimento: 50 mt/month

Tempo de espera: 7 dias para OEM, 3 dias para produtos prontos

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  • Descrição do produto

  • Property

    CAS No.: 74-93-1 Formula: CH4S Molecular Weight: 48.10750

    Description

    Methanethiol (also known as methyl mercaptan) is an organosulfur compound with the chemical formula CH 3SH. It is a colorless gas with a distinctive putrid smell. It is a natural substance found in the blood and brain of humans and other animals as well as plant tissues. It is disposed of through animal feces. It occurs naturally in certain foods, such as some nuts and cheese. It is also one of the main compounds responsible for bad breath and the smell of flatus. Methanethiol is classified as a thiol and is sometimes abbreviated as MeSH. It is very flammable.

    Basic Info

    Chemical Name methanethiol
    Synonyms

    METHYL MERCAPTAN;
    Methanthiol;
    MERCAPTOMETHYLE;
    Methaanthiol;
    methylmercaptan;
    Methanethiol;
    FEMA 2716;
    methylenethiol;
    methyl mercaptane;
    CH3SH;
    THIOMETHANOL;
    MERCAPTAN C1;
    4Q 1998;
    Methvtiolo;

    CAS No. 74-93-1
    Molecular Formula CH4S
    Molecular Weight 48.10750
    PSA 38.80000
    LogP 0.54600

    Properties

    Appearance & Physical State colourless gas with a garlic-like or rotten cabbage-like smell
    Density 0.8665
    Boiling Point 6ºC
    Melting Point 2ºC
    Flash Point <71ºC
    Stability Stable. Highly flammable - note low flash point. Reacts vigorously or explosively with a wide variety of materials - consult a full MSDS data sheet before using. Incompatible with strong oxidizing agents, alkali and alkaline earth metals, epoxides, hydrazi
    Vapor Density 1.66 (vs air)
    Vapor Pressure 1536 mm Hg ( 20 °C)

    Safety Info

    RTECS PB4375000
    Hazard Class 2.3
    Safety Statements S16; S25; S60; S61
    HS Code 2931909090
    WGK Germany 3
    RIDADR UN 2037 2.3
    Risk Statements R12
    Hazard Codes F+; T; N
    Caution Statement P210; P261; P273; P311; P410 + P403; P501
    Signal Word Danger
    Symbol GHS02, GHS06, GHS09
    Hazard Declaration H220; H280; H331; H410

    Synthesis Route

    Dimethyl trisulfide+potassium cyanide→methanethiol+potassium thiocyanate
    acetic acid-(β,β'-bis-methylsulfanyl-isopropyl ester)→methanethiol+1,3-bis(methylsulfanyl)propan-2-ol
    acetic acid-(2,3-bis-methylsulfanyl-propyl ester)→methanethiol+2,3-bis(methylsulfanyl)propan-1-ol

    Precursor

    Dimethyl sulfide
    S-methyl N-methylcarbamothioate
    S-methyl N-ethylcarbamothioate
    carbon monoxide

    Downstream Product

    3-CHLOROTHIOANISOLE
    METHYL PROPYL SULFIDE
    trimethyl(methylsulfanyl)silane
    1,3-Bis(methylthio)benzene

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