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SODIUM METHYLATE
ICSC: 0771
Peer-Review Status: 02.04.2009 Validated
Sodium methoxide
Sodium methanolate
Methanol, sodium salt
Methoxy sodium 
CAS #: 124-41-4 RTECS #: PC3570000
UN #: 1431
EC #: 603-040-00-2
EINECS #: 204-699-5
    Formula: CH3ONa
Molecular mass: 54.0

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Highly flammable. Many reactions may cause fire or explosion.  NO open flames, NO sparks and NO smoking. NO contact with water.  NO water. NO hydrous agents. Use dry powder, dry sand. 
EXPLOSION Risk of fire and explosion on contact with water, moist air or metals.    In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water. 
 
EXPOSURE   AVOID ALL CONTACT!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Sore throat. Cough. Burning sensation. Shortness of breath. Laboured breathing.  Use local exhaust and breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention. 
Skin Redness. Pain. Serious skin burns.  Protective gloves. Protective clothing.  First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer immediately for medical attention. 
Eyes Redness. Pain. Blurred vision. Severe deep burns.  Wear face shield or eye protection in combination with breathing protection.  Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately for medical attention. 
Ingestion Burns in mouth and throat. Burning sensation in the throat and chest. Shock or collapse.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Cover the spilled material with dry sand. Sweep spilled substance into covered dry plastic containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT wash away into sewer.  Airtight.
Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs. 
EC Classification
Symbol: F, C; R: 11-14-34; S: (1/2)-8-16-26-43-45 
UN Classification
UN Hazard Class: 4.2; UN Subsidiary Risks: 8; UN Pack Group: II 
GHS Classification
Signal: Danger
Self-heating; may catch fire
Causes severe skin burns and eye damage 
flam;flamecorr

EMERGENCY RESPONSE SAFE STORAGE
  Fireproof. Separated from strong oxidants, acids, metals and food and feedstuffs. Dry. Cool. Well closed. Store in an area having corrosion resistant concrete floor. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
WHITE HYGROSCOPIC POWDER. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
Heating may cause violent combustion or explosion. Reacts violently with water. This produces flammable methanol and corrosive sodium hydroxide. The substance may ignite spontaneously on contact with moist air. The substance is a strong reducing agent. The substance is a strong base. It reacts violently with acid and is corrosive. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001). 

Occupational exposure limits
TLV not established.
MAK (not established):. 

Routes of exposure
Serious local effects by all routes of exposure. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: No melting point; decomposes at >50°C
Density: 1.3 g/cm³
Solubility in water: reaction
Auto-ignition temperature: >50°C
Explosive limits, vol% in air: 7.3 - 36 
This substance may be hazardous to the environment. Special attention should be given to aquatic organisms. 

NOTES
Sodium methylate is a very reactive solid and is handled in solution in most cases. The solid is very hygroscopic and decomposes quickly. It is only stable under exclusion of air and moisture.
Reacts violently with fire extinguishing agents such as water.
Rinse contaminated clothing with plenty of water because of fire hazard.
Other UN number is UN1289 Sodium methylate solution in alcohol, hazard class: 3, subsidiary risk: 8, packing group II-III.
Card has been partially updated in April 2010: see Explosion; Physical Dangers. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
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    See Also:
       Toxicological Abbreviations