Sulfuric acid 100%
Oil of vitriol
H2SO4
Molecular mass: 98.1
ICSC # 0362
CAS # 7664-93-9
RTECS # WS5600000
UN # 1830
EC # 016-020-00-8
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible.
Many reactions may cause fire or explosion.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO contact with flammable substances.
NO contact with
combustibles
.
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NO water.
In case of fire in the surroundings: powder, foam, carbon dioxide
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Explosion
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Risk of fire and explosion
on contact with
base(s)
,
combustible substances
,
oxidants
,
reducing agents
or
water
.
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In case of fire: keep drums, etc., cool by spraying with water but NO direct contact with water.
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Exposure
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PREVENT GENERATION OF MISTS!
AVOID ALL CONTACT!
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IN ALL CASES CONSULT A DOCTOR!
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•Inhalation
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Corrosive.
Burning sensation.
Sore throat.
Cough.
Laboured breathing.
Shortness of breath.
Symptoms may be delayed (see Notes).
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Half-upright position.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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Corrosive.
Redness.
Pain.
Blisters.
Serious
skin burns.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Corrosive.
Redness.
Pain.
Severe deep burns.
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Face shield
or
eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Corrosive.
Abdominal pain.
Burning sensation.
Shock or collapse.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Do NOT induce vomiting.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Consult an expert!
Evacuate danger area!
Do NOT absorb in saw-dust or other combustible absorbents.
Personal protection: complete protective clothing including self-contained breathing apparatus.
Do NOT let this chemical enter the environment.
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Separated from
combustible and reducing substances,
strong oxidants,
strong bases,
food and feedstuffs
,
incompatible materials
.
See Chemical Dangers.
May be stored in stainless steel containers.
Store in an area having corrosion resistant concrete floor.
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Unbreakable packaging; put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
Note: B
C symbol
R: 35
S: 1/2-26-30-45
UN Hazard Class: 8
UN Packing Group: II
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Important Data
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Physical State; Appearance:
COLOURLESS
,
OILY
,
HYGROSCOPIC LIQUID
, WITH NO ODOUR.
Physical Dangers:
Chemical Dangers:
The substance is a strong oxidant and reacts violently 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 with evolution of heat (see Notes).
Upon heating, irritating or toxic fumes (or gases) (sulfur oxides) are formed.
Occupational Exposure Limits:
TLV: 0.2 mg/m3
Thoracic fraction
A2 (suspected human carcinogen);
(sulfuric acid contained in strong inorganic acid mists)
(ACGIH 2005).
MAK: (Inhalable fraction) 0.1 mg/m3
Peak limitation category: I(1); Carcinogen category: 4; Pregnancy risk group: C;
(DFG 2004).
OSHA PEL: TWA 1 mg/m3
NIOSH REL: TWA 1 mg/m3
NIOSH IDLH: 15 mg/m3 See: 7664939
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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,
the skin
and
the respiratory tract.
Corrosive on ingestion.
Inhalation of an aerosol of this substance may cause lung oedema (see Notes).
Effects of Long-Term or Repeated Exposure:
Lungs may be affected by repeated or prolonged exposure to an aerosol of this substance.
Risk of tooth erosion upon repeated or prolonged exposure to an aerosol of this substance.
Strong inorganic acid mists containing this substance are carcinogenic to humans.
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Physical
Properties
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Boiling point (decomposes): 340°C
Melting point: 10°C
Relative density (water = 1): 1.8
Solubility in water:
miscible
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Vapour pressure, kPa at 146°C: 0.13
Relative vapour density (air = 1): 3.4
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Environmental
Data
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The substance is harmful to aquatic organisms.
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N O T E S
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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.
Transport Emergency Card: TEC (R)-80S1830 or 80GC1-II+III
NFPA Code: H 3; F 0; R 2; W
Card has been partially updated in January 2008: see Fire fighting.
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ADDITIONAL INFORMATION
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ICSC: 0362
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SULFURIC ACID
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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