MALEIC ANHYDRIDE
SYNONYMS:
ANHIDRIDO
MALEICO (Spanish); ANHYDRIDE MALEIQUE (French); BM 10; cis- BUTENEDIOIC
ANHYDRIDE; DIHYDRO-2,5- DIOXOFURAN; 25-DIHYDROFURAN-2,5-DIONE; EEC No.
607-096-00-9; EINECS No. 203-571-6; 25- FURANDIONE; 25-FURANEDIONE; MALEIC ACID
ANHYDRIDE; MALEINSAEUREANHYDRID (German); TOXILIC ANHYDRIDE; STCC 4941161
IDENTIFICATION:
CAS:
108-31-6
DOT ID:
UN2215
Hazard Class or Division:
8 (CORROSIVE MATERIAL)
ERG Guide:
156
Formula:
C4H2O3
RTECS No:
ON3675000
Properties:
Combustible
liquid or solid (solid difficult to ignite). Transported as a hot liquid.
Colorless liquid, or white solid as needles, crystals, lumps or pellets,
Irritating, acrid, choking odor. Mixes with water
forming
a strong acid.
Uses:
Making
lube oil additives, preservative for cutting oils; in corrosion inhibitors.
HEALTH & SAFETY INFORMATION
• IDLH:
10
mg/m3
• Odor threshold:
1.02–1.31 mg/m3 [inadequate warning properties]
•
OSHA Table Z-1 Air Contaminant
•
The substance irritates severely the eyes, skin, and respiratory tract.
Inhalation may cause asthmatic reactions; the effects may be delayed (persons
showing asthma symptoms due to exposure should be warned to avoid all further
contact with this chemical). Repeated or prolonged skin contact may cause
dermatitis. Chronic inhalation exposure may cause asthma.
Exposure Limits:
•
ACGIH TLV: 0.1 ppm TWA
•
OSHA PEL/NIOSH REL: 1 mg/m3/0.25 ppm TWA
•
DFG MAK: 0.1 ppm/0.41mg/m3
Respirator:
10
mg/m3:
SA:CF (any supplied-air
respirator operated in a continuous-flow mode) SCBAF (any self-contained
breathing apparatus with a full facepiece) SAF (any supplied-air respirator
with a full facepiece).
Emergency
or Planned Entry into Unknown Concentrations or IDLH Conditions
SCBAF:PD,PP (any self-contained breathing
apparatus that has a full facepiece and is operated in a pressuredemand or
other positive-pressure mode) SAF:PD,PP:ASCBA (any supplied-air respirator that
has a full facepiece and is operated in a pressuredemand or other
positive-pressure mode in combination with an auxiliary self-contained
breathing apparatus operated in a pressure-demand or other positive-pressure
mode).
Escape:
GMFOVHiE
[any air-purifying, full-facepiece respirator (gas mask) with a chin-style,
front- or back-mounted canister having a high efficiency particulate filter] or
SCBAE (any appropriate escape-type, self-contained breathing apparatus).
Note:
Substance causes eye irritation or damage;
eye protection needed.
Reactivity:
Reacts
(hydrolyses) slowly with cold water to form maleic acid. Contact with strong
oxidizers may cause fire and explosions. Contact with amines or alkali metals
(even in low concentrations of 200 ppm) cause polymerization if temperature is
> 150°F/66°C. Attacks some plastics, rubber, and coatings. Corrosive to
metals except in the presence of water.
FIRE INFORMATION:
If material or contaminated runoff enters waterways, notify
downstream users of potentially contaminated water.
Hazard Classifications:
Health Hazard (Blue)
. . . . . . . . . . . . . . 3
Flammability (Red)
. . . . . . . . . . . . . . . 1
Reactivity (Yellow)
. . . . . . . . . . . . . . . . 1
Flash
Point: 218°F (103°C)
Flammable
Limits in Air: LEL 1.4%; UEL 7.1%
Autoignition
Temperature: 878°F (470°C)
FIRST AID:
Move
victim to fresh air. Call emergency medical care. Apply artificial respiration
if victim is not breathing. Do not use mouth-to-mouth method if victim ingested
or inhaled the substance; induce artificial respiration with the aid of a
pocket mask equipped with a one-way valve or other proper respiratory medical
device. Administer oxygen if breathing is difficult. Remove and isolate
contaminated clothing and shoes. In case of contact with material, immediately
flush skin or eyes with running water for at least 20 minutes. For minor skin
contact, avoid spreading material on unaffected skin. Keep victim warm and
quiet. Effects of exposure (inhalation, ingestion or skin contact) may be
delayed. Ensure that medical personnel are aware of the material(s) involved,
and take precautions to protect themselves.
ENVIRONMENTAL REGULATIONS
•
Clean Air Act: Hazardous Air Pollutants (Title I, Part A, Section 112).
•
Clean Water Act: Section 311 Hazardous Substances/RQ (same as CERCLA); Section
313 Priority Chemicals.
•
EPA Hazardous Waste Number (RCRA No.): U147.
•
RCRA Section 261 Hazardous Constituents
•
EPCRA Section 304: Reportable Quantity (RQ): CERCLA, 5000 lb (2270 kg).
•
EPCRA Section 313: Form R
de
minimis
concentration
reporting level: 1.0%.
•
California LOL: DGIJMNOQ
•
WHMIS, Ingredients Disclosure List (Canada): 0.1%