At US Methanol we make sure that we handle our product with care and make sure we follow all guidelines, as well as make sure all of our employees are in a safe working environment.
First Aid Measures
200 ppm TWA, 250 STEL ACGIH & OSHA
EFFECTS OF SHORT-TERM (ACUTE) EXPOSURE:
Methanol is a mild to moderate eye irritant. High Vapor concentration or liquid contact with eyes causes irritation, tearing, and burning.
Methanol is moderately irritating to the skin. Methanol can be absorbed through the skin and harmful effects have been reported by this route of entry. Effects are similar to those described in “inhalation.”
Inhalation of high airborne concentrations can also irritate mucous membranes, cause headaches, sleepiness, nausea, confusion, loss of consciousness, digestive and visual disturbances and even death.
Swallowing even small amounts of methanol could potentially cause blindness or death. Effects of sub lethal doses may be nausea, headache, abdominal pain, vomiting, and visual disturbances ranging from blurred vision to light sensitivity.
EFFECTS OF LONG-TERM (CHRONIC) EXPOSURE:
Inhalation / Skin Contact
Repeated exposure by inhalation or absorption may cause systemic poisoning, brain disorders, impaired vision, and blindness. Inhalation may worsen conditions such as emphysema or bronchitis. Repeated skin contact may cause dermal irritation, dryness, and cracking.
Medical Conditions Aggravated By Exposure Inhalation
Emphysema or bronchitis can be aggravated with exposure. Methanol exposure may aggravate existing eye, skin, kidney and liver disorders.
EMERGENCY AND FIRST AID PROCEDURES
Induce vomiting of conscious patient immediately by giving two glasses of water and pressing finger down throat. Drink a large amount of water, milk or sodium bicarbonate to dilute materials in stomach. Contact a physician immediately.
Remove contaminated clothing. Wash skin with soap and large amounts of water. Obtain medical attention if irritation persists. Wash clothing before reuse.
Move to fresh air. Give artificial respiration if not breathing. If breathing is difficult, oxygen may be given by qualitied personnel. Obtain medication attention.
Flush eyes with water for at least 15 minutes. Contact a physician immediately.
Fire fighting & Explosions
Special Fire Fighting Means
Water will not cool methanol below its flashpoint. Use water spray to cool fire exposed containers and structures. Avoid water streams which may splash and spread the flammable liquid. Water spray can be used to reduce the intensity of the flames and dilute spills to a non-flammable mixture. Fire fighters should use self-contained breaking equipment and bunker gear.
Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. Isolate for 800 meters (1/2 mile) in all directions; also consider initial evacuation for 800 meters (1/2 mile) in all directions. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
Toxic gases and vapors; oxides; formaldehyde
Unusual Fire and Explosion
Stay upwind. Isolate and restrict access to area. Vapors from this product are heavier than air and may travel a long distance along the ground and flashback. Material can burn with little to no visible flame in the daylight. Methanol water mixtures will burn unless very dilute. Mixtures with 25% or more Methanol are OSHA Class I Flammable Liquids.
Apply alcohol-type or all purpose-type foam by manufacturer’s recommended techniques for large fires. Use carbon dioxide or dry chemical media for small fires.
Accidental Release Measures
Do not flush spill to sewer. Soak up spill with non-combustible absorbent material. Recover methanol and dilute with water to reduce fire hazard. Prevent spilled methanol from entering sewers, confined spaces, drains, or waterways. Restrict access to unprotected personnel. Put material in suitable, covered, labeled containers. Flush area with water.
Do not flush spill to sewer. If necessary, contain spill by diking. Fluorocarbon alcohol resistant foams may be applied to spill to diminish vapor and fire hazard. Maximize methanol recovery for recycling or reuse. Collect liquid with explosion proof pumps.
Methanol is 100% soluble in water. Concentrations of methanol greater than 25% in water are flammable. Methanol in fresh or salt water may have serious effects on aquatic life. A study on methanol’s toxic effects on sewage sludge bacteria reported little effect on digestion at 0.1% while 0.5% methanol retarded digestion. Methanol will be broken down to carbon dioxide and water.
Flammable liquid which can bum without a visible flame. Release can cause immediate risk of fire and explosion. Eliminate all ignition sources, stop leak and use absorbent materials. If necessary, contain spill by diking. Fluorocarbon alcohol resistant foams may be applied to spill to diminish vapor and fire hazard. Maximize methanol recovery for recycling or re-use. Restrict access to area until completion of cleanup. Ensure cleanup is conducted by trained personnel only. Wear adequate personal protection and remove all sources of ignition. Notify all governmental agencies as required by law.
Full-face, positive pressure, self-contained breathing apparatus or airline, and protective clothing must be worn. Protective firefighting clothing is not effective protection from methanol.
Flammable liquid. Release can cause an immediate fire/explosion hazard. Eliminate all sources of ignition, stop leak, and use absorbent materials. Collect liquid with explosion proof pumps. The material’s fire is invisible during day. Do not touch or walk through spilled product as it may be on fire and not visible. Stay upwind of the material which is heavier than air and can travel large distances.
Handling and Storage
Store in totally enclosed equipment designed to avoid ignition and human contact. Tanks must be grounded, vented, and should have vapor emission controls. Tanks must be diked. Anhydrous methanol is non-corrosive to most metals at ambient temperatures. Storage tanks should be designed and built in conformance with good engineering practice for the material being stored. While plastics can be used for short term storage, they are generally not recommended for long-term storage.
Lead, Aluminum, zinc, oxidizing agents, strong acids, strong bases, polyethylene, PVC (Polyvinyl chloride) and nitrile.
No smoking or open flame in storage, use, or handling areas. Use explosion proof electrical equipment. Ensure proper electrical grounding procedures are in place. Avoid contact with skin and eyes. Avoid inhalation of vapor or mist.
Exposure Control/Personal Protection
Provide adequate ventilation or exhaust to meet the TLV / PEL requirements. Supplied air or self-contained breathing equipment recommended for exposures above PEL. Organic vapor cartridge respirators not recommended for methanol vapor exposure.
Chemical resistant as a minimum.
Work / Hygiene Practices
A safety shower and eye wash is recommended in the area of use. Wash with soap and water immediately after skin contact. Monitoring of the air in the workplace is recommended to facilitate maintaining methanol vapors below recommended TLV.
Provide adequate ventilation or exhaust to meet the TLV / PEL requirements. Supplied air or self-contained breathing equipment recommended for exposures above PEL. Organic vapor cartridge respirators not recommended for methanol vapor exposures.
Have available and wear as appropriate chemical splash goggles or safety glasses (side shields preferred).
Rubber gloves and protective aprons or clothing should be used to prevent skin contact. For operators where spills or splashing can occur, use impervious body covering and boots.
Physical and Chemical Properties
Lower Explosive Limit : 5.5%
Upper Explosive Limit : 36.5%
Specific Gravity : 0.791
Vapor Density : 1.105 at 60° F (15° C)
Evaporation Rate : 4.1 (butyl acetate = 1)
Solubility in Water : Completely soluble
Solubility in Other Liquids : Soluble in all proportions in other alcohols, esters, ketones and most other organic solvents
Partition Coefficient Log : 0.82
Appearance : Clear, colorless liquid
Odor : Mild characteristic alcohol odor
Odor Threshold : 4.2 – 5960 ppm (recognition 53 – 840 ppm)
pH : Not Applicable
Melting / Freezing Point : -144° F (-97.6° C)
Boiling Point : 149° F ( 64.7° C)
Flash Point : 51.8° F ( 11° C)
Critical Temperature : 560° F (293.4° C)
Autoignition Temperature : 867° F ( 464° C)
Stability and Reactivity
Conditions of Reactivity
Presence of incompatible materials and ignition sources.
Formaldehyde, carbon dioxide, carbon monoxide and flammable gases
Will not occur.
Stable under normal conditions.
Avoid contact with bleach, strong oxidizers, strong mineral or organic acids, and strong bases. Contact with these materials may cause a violent or explosive reaction. Maybe corrosive to lead, aluminum, magnesium, and platinum. PVC
No component of this product present at levels greater than or equal to 0.1% is identified as a probable, possible or confirmed human carcinogen by IARC, ACGIH, NTP or OSHA.
This product is not anticipated to be a teratogen.
This product has been reported to cause birth defects in rats exposed to 20,000 ppm.
No available data.
Poison. May be fatal or risk of blindness if swallowed. Toxic if ingested, in contact with skin or inhaled.
Poison. May be fatal or risk of blindness if swallowed. Toxic if ingested, in contact with skin or inhaled.
200 ppm TWA
250 STEL ACGIH & OSHA
Dermal = 300 mg/kg
Inhalation – Vapor = 3 mg/l
Oral = 100 mg/kg
This product is not anticipated to be a sensitizer.
Chemical Fate Information
Persistence & Degradability – Readily biodegradable.
Any other adverse environmental effects, such as environmental fate (exposure), ozone depletion potential, photochemical ozone creation potential, endocrine disrupting potential, and global warming potential are indicated in this section if data exists. Otherwise, this data has not been established.
Methanol in fresh or salt water may have serious effects on aquatic life. A study on methanol’s toxic effects on sewage sludge bacteria reported little effect on digestion at 0.1% while 0.5% methanol hindered digestion. Methanol will be broken down into carbon dioxide and water.
Biodegrades easily in water.
Acute : Ecological data does not exist.
Chronic : Ecological data does not exist.
Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting as this material is highly flammable. Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed professional waste disposal service to dispose of this material.
Review federal, provincial, or state and local government requirements prior to disposal. Store material for disposal as indicated in Section 7 “Handling and Storage”. Disposal by controlled incineration or by secure land fill may be acceptable. Prevent entry into sewers, drains, ditches, underground or confined spaces and waterways.
Dispose of as unused product.