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SULFURIC ACID
ICSC: 0362
Peer-Review Status: 10.02.2000 Validated
Sulfuric acid 100%
Oil of vitriol 
CAS #: 7664-93-9 RTECS #: WS5600000
UN #: 1830
EC #: 016-020-00-8
EINECS #: 231-639-5
    Formula: H2SO4
Molecular mass: 98.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire.  NO contact with flammables. NO contact with combustible substances.  NO water. In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION Risk of fire and explosion on contact with bases, combustible substances, oxidizing agents, reducing agents or water.    In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water. 
 
EXPOSURE   PREVENT GENERATION OF MISTS! AVOID ALL CONTACT!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Burning sensation. Sore throat. Cough. Laboured breathing. Shortness of breath. Symptoms may be delayed. See Notes.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness. Pain. Blisters. Serious skin burns.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain. Severe deep burns.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Burning sensation. Shock or collapse.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Do NOT absorb in saw-dust or other combustible absorbents.  Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs. 
EC Classification
Symbol: C; R: 35; S: (1/2)-26-30-45; Note: B 
UN Classification
UN Hazard Class: 8; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-80S1830 or 80GC1-II+III.
NFPA Code: H3; F0; R2; W. 
Separated from combustible substances, reducing agents, strong oxidants, strong bases, food and feedstuffs and incompatible materials. See Chemical Dangers. Store in stainless steel containers. Store in an area having corrosion resistant concrete floor. 

IMPORTANT DATA
Physical State; Appearance
ODOURLESS COLOURLESS OILY HYGROSCOPIC LIQUID. 

Physical dangers
No data. 

Chemical dangers
The substance is a strong oxidant. It reacts with combustible and reducing materials. The substance is a strong acid. It reacts violently with bases and is corrosive to most common metals forming a flammable/explosive gas (hydrogen - see ICSC 0001). Reacts violently with water and organic materials. This generates heat. See Notes. Decomposes on heating. This produces irritating or toxic fumes (or gases) and sulfur oxides. 

Occupational exposure limits
MAK (inhalable fraction): 0.1 mg/m³; Carcinogen category: 4; Peak limitation category: I(1); Pregnancy risk group: C; (DFG 2004). 

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. 

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying. 

Effects of short-term exposure
Corrosive. The substance is very corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of of the aerosol may cause lung oedema. See Notes. 

Effects of long-term or repeated exposure
Repeated or prolonged inhalation may cause effects on the lungs and teeth. This may result in tooth erosion. Strong inorganic acid mists containing this substance are carcinogenic to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at 340°C
Melting point: 10°C
Relative density (water = 1): 1.8
Solubility in water: miscible
Vapour pressure, kPa at 146°C: 0.13
Relative vapour density (air = 1): 3.4  
The substance is harmful to aquatic organisms. 

NOTES
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation are therefore essential.
NEVER pour water into this substance; when dissolving or diluting always add it slowly to the water.
Other UN numbers: UN1831 Sulfuric acid, fuming, hazard class 8, subsidiary hazard 6.1, pack group I; UN1832 Sulfuric acid, spent, Hazard class 8, Pack group II.
Card has been partly updated in October 2005.
See sections Occupational Exposure Limits, Emergency Response.
Card has been partially updated in January 2008: see Fire fighting. 

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
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.
    See Also:
       Toxicological Abbreviations
       SULFURIC ACID (JECFA Evaluation)