5.89592

m-Xylol

• Synonym(e): 1,3-Dimethylbenzen
• Lineare Formel: C₆H₄(CH₃)₂
• CAS-Nummer: 108-38-3
• Molekulargewicht: 106.17
• Beilstein: 605441
• MDL-Nummer: MFCD00008536
• UNSPSC-Code: 12191501
• NACRES: NA.22

Eigenschaften

• Qualität: anhydrous
• Qualitätsniveau: 200
• Dampfdichte: 3.7 (vs air)
• Assay: ≥99%
• Selbstzündungstemp.: 982 °F
• Expl.-Gr.: 7 %
• Brechungsindex: n20/D 1.497 (lit.)
• bp: 138-139 °C (lit.)
• mp (Schmelzpunkt): −48 °C (lit.)
• Dichte: 0.868 g/mL at 25 °C (lit.)
• SMILES String: Cc1cccc(C)c1
• InChI: 1S/C8H10/c1-7-4-3-5-8(2)6-7/h3-6H,1-2H3
• InChIKey: IVSZLXZYQVIEFR-UHFFFAOYSA-N

Beschreibung

Anwendung

m-Xylene may be used in the synthesis of 2,4-dimethylbenzophenone via Friedel–Craft acylation with benzoyl chloride over iron-modified tungstophosphoric acid supported on titania.citation It may also undergo chloromethylation in the presence of organic acids under organic-aqueous biphasic conditions to form a mixture of chloromethyl-2,4-dimethylbenzene and 1,3-bis(chloromethyl)-4,6-dimethylbenzene.

Sicherheitshinweise

• Piktogramme: GHS02,GHS07,GHS08
• Signalwort: Danger
• H-Sätze: H226 - H304 - H312 + H332 - H315 - H319 - H335 - H412
• P-Sätze: P210 - P273 - P280 - P301 + P310 - P303 + P361 + P353 - P331
• Gefahreneinstufungen: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 2
• Flammpunkt (°F): 80.6 °F - closed cup
• Flammpunkt (°C): 27 °C - closed cup