40296

Methanol

• Synonym(s): Methyl alcohol
• Linear Formula: CH₃OH
• CAS Number: 67-56-1
• Molecular Weight: 32.04
• Beilstein: 1098229
• EC Number: 200-659-6
• MDL number: MFCD00004595
• UNSPSC Code: 12352300
• PubChem Substance ID: 57649971

Properties

• vapor density: 1.11 (vs air)
• vapor pressure: 410 mmHg ( 50 °C); 97.68 mmHg ( 20 °C)
• form: liquid
• CofA: specification on request
• autoignition temp.: 725 °F
• expl. lim.: 36 %
• refractive index: n20/D 1.329 (lit.)
• bp: 64.7 °C (lit.)
• mp: −98 °C (lit.)
• density: 0.791 g/mL at 25 °C (lit.)
• SMILES string: CO
• InChI: 1S/CH4O/c1-2/h2H,1H3
• InChI key: OKKJLVBELUTLKV-UHFFFAOYSA-N

Description

Application

Semiconductor grade methanol may be used to degas indium antimonide wafers. Poly(amidoamine) (PAMAM) was coupled with carboxylic acid terminated Si surfaces by soaking the Si surfaces in methanol. Methanol may be used to degrease silicon ingots and ribbons. It may be used in the purification of surfactant (sodium diethylhexylsulfosuccinate) and to prepare a colloidal suspension of silicon.

Safety Information

• Pictograms: GHS02,GHS06,GHS08
• Signal Word: Danger
• Hazard Statements: H225,H301 + H311 + H331,H370
• Precautionary Statements: P210 - P280 - P301 + P310 + P330 - P302 + P352 + P312 - P304 + P340 + P311
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1
• Target Organs: Eyes
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 2
• Flash Point(F): 49.5 °F - closed cup
• Flash Point(C): 9.7 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves