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821258 2-Metil-1,3-butadiena

2-Methyl-1,3-butadiene (stabilised) for synthesis. CAS 78-79-5, chemical formula CH₂=CHC(CH₃)=CH₂.

2-Metil-1,3-butadiena MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

Synonyms: Isoprene

CAS #: 78-79-5 EC Number: 201-143-3 Molar Mass: 68.12 g/mol Chemical Formula: CH₂=CHC(CH₃)=CH₂ Hill Formula: C₅H₈
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Overview

Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar Mass
78-79-5201-143-3C₅H₈CH₂=CHC(CH₃)=CH₂68.12 g/mol

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          Description
          Catalogue Number821258
          SynonymsIsoprene
          Description2-Methyl-1,3-butadiene
          References
          Product Information
          CAS number78-79-5
          EC index number601-014-00-5
          EC number201-143-3
          Hill FormulaC₅H₈
          Chemical formulaCH₂=CHC(CH₃)=CH₂
          Molar Mass68.12 g/mol
          HS Code2901 24 20
          Structure formula ImageStructure formula Image
          Quality LevelMQ200
          Applications
          Application2-Methyl-1,3-butadiene (stabilised) for synthesis. CAS 78-79-5, chemical formula CH₂=CHC(CH₃)=CH₂.
          Biological Information
          Physicochemical Information
          Boiling point34 °C (1013 hPa)
          Density0.68 g/cm3 (20 °C)
          Explosion limit1 - 9.7 %(V)
          Flash point-54 °C
          Ignition temperature220 °C
          Melting Point-145.95 °C
          Vapor pressure1710 hPa (50 °C)
          Solubility0.7 g/l
          Dimensions
          Materials Information
          Toxicological Information
          LD 50 oralLD50 Rat > 2000 mg/kg
          Safety Information according to GHS
          Hazard Pictogram(s) Hazard Pictogram(s)
          Hazard Pictogram(s)
          Hazard Statement(s)H224: Lichid şi vapori extrem de inflamabili.
          H341: Susceptibil de a provoca anomalii genetice.
          H350: Poate provoca cancer.
          H412: Nociv pentru mediul acvatic cu efecte pe termen lung.
          Precautionary Statement(s)P202: A nu se manipula decât după ce au fost citite şi înţelese toate măsurile de securitate.
          P210: A se păstra departe de surse de căldură, suprafețe fierbinți, scântei, flăcări și alte surse de aprindere. Fumatul interzis.
          P233: Păstraţi recipientul închis etanş.
          P273: Evitaţi dispersarea în mediu.
          P308 + P313: ÎN CAZ DE expunere sau de posibilă expunere: consultaţi medicul.
          P403 + P233: A se depozita într-un spaţiu bine ventilat. Păstraţi recipientul închis etanş.
          Signal WordPericol
          Storage class3 Lichide inflamabile
          WGKWGK 3 puternică poluare a apei
          Disposal9
          Compusii cancerigeni si compusii inflamabili marcati ca "toxici" sau "foarte toxici": container F. Alchili-sulfatii sunt cancerigeni. Luati masuri speciale pentru a evita inhalarea sau contactul cu pielea. Pentru neutralizarea alchil-sulfatilor, acestia se adauga in picaturi (cu o palnie de picurare) in solutie concentrata de amoniac racita cu gheata (Cod Merck 105426) agitand puternic. Inainte de colectarea in containerul D, verificati pH-ul cu strip-uri indicatoare pH, universale (Cod Merck 109535).
          Safety Information
          Categories of dangercarcinogen, extrem de inflamabil, mutagen, periculos pentru mediu
          Product Usage Statements
          Storage and Shipping Information
          StoragePastrare la <= 20°C.
          Packaging Information
          Transport Information
          Declaration (railroad and road) ADR, RIDUN 1218 , 3, I
          Declaration (transport by air) IATA-DGRUN 1218 , 3, I
          Declaration (transport by sea) IMDG-CodeUN 1218 , 3, I
          Supplemental Information
          Specifications
          Assay (GC, area%)≥ 98.0 % (a/a)
          Density (d 20 °C/ 4 °C)0.681 - 0.683
          Identity (IR)passes test
          The material is stabilised with 4-tert-Butylpyrocatechol (TBC). At time of analytical testing a content of >100 ppm stabiliser was determined.
          Global Trade Item Number
          Catalogue Number GTIN
          8212580100 04022536476896
          8212581000 04022536476902