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172.18.0.1 · Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatibl...methanol 67-56-1
- Source
- pubchem
- Confidence
- medium
- Source URL
- https://pubchem.ncbi.nlm.nih.gov/compound/887
- PubChem CID
- 887
- Fetched (UTC)
- 2026-06-06T08:30:49.688244+00:00
- Updated (UTC)
- 2026-06-06T08:30:49.688244+00:00
- TTL
- 180 days
- Content hash
b694b735188ba14b- Verified by
- —
Diff
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Synonyms
methanol methyl alcohol 67-56-1 wood alcohol Methylol Wood naphtha Methyl hydroxide Monohydroxymethane Methylalkohol Alcool methylique Methyl hydrate Alcohol, methyl Metanolo MeOH Alcool metilico Metylowy alkohol CH3OH Rcra waste number U154 Metanol Alcohol,methyl
Record content
These are the fields that get used when generating an SDS. Edit them via Recheck (PubChem) or Upload (your data) — direct editing is intentionally not supported; the audit trail is the cache row's data_source + updated_at.
GHS classification
- Signal
- —
- Pictograms
- GHS02 GHS06 GHS07 GHS08
- Classes
- Flam. Liq. 2 (> 99.9%)
- Acute Tox. 3 (99.9%)
- Acute Tox. 3 (99.4%)
- STOT SE 1 (> 99.9%)
- Carc. 2 (100%)
- Repr. 1B (100%)
- Flammable liquid - category 2
- Acute toxicity - category 3
- Specific target organ toxicity (single exposure) - category 1
- Flammable liquids - Category 2
- Acute toxicity (Oral) - Category 4
- Serious eye damage/eye irritation - Category 2
- Reproductive toxicity - Category 1B
- Specific target organ toxicity - Single exposure - Category 1 (central nervous system, visual organs, systemic toxicity), Category 3 (narcotic effects)
- Specific target organ toxicity - Repeated exposure - Category 1 (central nervous system, visual organs)
- Acute toxicity (Oral) - Category 5
- Serious eye damage/eye irritation - Category 2A-2B
- Specific target organ toxicity - Single exposure - Category 1 (central nervous system, visual organs, systemic toxicity), Category 3 (respiratory tract irritation, narcotic effects)
- Teratogens, Flammable agents - 3rd degree
- Flam. Liq. 2
- Acute Tox. 3 *
- STOT SE 1
- H-statements
- H225 Highly Flammable liquid and vapor
- H301 Toxic if swallowed
- H311 Toxic in contact with skin
- H331 Toxic if inhaled
- H370 **: Causes damage to organs
- H225 (> 99.9%): Highly Flammable liquid and vapor
- H301 (99.9%): Toxic if swallowed
- H311 (99.9%): Toxic in contact with skin
- H331 (99.4%): Toxic if inhaled
- H370 (> 99.9%): Causes damage to organs
- H351 (100%): Suspected of causing cancer
- H360FD (100%): May damage fertility; May damage the unborn child
- H302 Harmful if swallowed
- H319 Causes serious eye irritation
- H336 May cause drowsiness or dizziness
- H360 May damage fertility or the unborn child
- H370 Causes damage to organs
- H372 Causes damage to organs through prolonged or repeated exposure
- H303 May be harmful if swallowed
- H335 May cause respiratory irritation
Physical properties
- appearance
- Methanol appears as a colorless fairly volatile liquid with a faintly sweet pungent odor like that of ethyl alcohol. Completely mixes with water. The vapors are slightly heavier than air and may travel some distance to a source of ignition and flash back. Any accumulation of vapors in confined spaces, such as buildings or sewers, may explode if ignited. Used to make chemicals, to remove water from automotive and aviation fuels, as a solvent for paints and plastics, and as an ingredient in a wide variety of products.
- odour
- Slight alcoholic odor when pure; repulsive, pungent odor when crude
- boiling point
- 148.3 °F at 760 mmHg (NTP, 1992)
- melting point
- -144 °F (NTP, 1992)
- flash point
- 52 °F (NTP, 1992)
- water solubility
- greater than or equal to 100 mg/mL at 70 °F (NTP, 1992)
- density
- 0.792 at 68 °F (USCG, 1999) - Less dense than water; will float
- vapour density
- 1.11 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
- vapour pressure
- 100 mmHg at 70.2 °F ; 237.87 mmHg at 100 °F (NTP, 1992)
- log pow
- log Kow = -0.77
- henry constant
- Henry's Law constant = 4.55X10-6 atm-cu m/mol at 25 °C
- autoignition temperature
- 867 °F (USCG, 1999)
Transport
- un number
- —
- un psn
- —
- hazard class
- —
- packing group
- —
Exposure limits
- osha pel
- Vacated 1989 OSHA PEL TWA 200 ppm (260 mg/cu m); STEL 250 ppm (325 mg/cu m), skin designation, is still enforced in some states.
- niosh rel
- Recommended Exposure Limit: 15 Minute Short-Term Exposure Limit: 250 ppm (325 mg/cu m), skin.
- note
- Auto-sourced from PubChem. NZ WES must be confirmed against MBIE Workplace Exposure Standards table before use.
First aid
- inhalation
- INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.
- skin
- SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
- eye
- EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.
- ingestion
- INGESTION: DO NOT INDUCE VOMITING. Volatile chemicals have a high risk of being aspirated into the victim's lungs during vomiting which increases the medical problems. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. IMMEDIATELY transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)