**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 75-91-2 |Tert-butyl hydroperoxide | 70 | 200-915-7 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: O C
Risk Phrases: 20/21/22 34 8
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Harmful by inhalation, in contact with skin and if swallowed. Causes
burns. Contact with combustible material may cause fire.Corrosive.
Potential Health Effects
Eye:
Causes eye burns. May cause eye injury.
Skin:
Harmful if absorbed through the skin. Causes skin burns. May cause
allergic contact dermatitis.
Ingestion:
Harmful if swallowed. May cause severe gastrointestinal tract
irritation with nausea, vomiting and possible burns.
Inhalation:
May cause allergic respiratory reaction. May cause irritation of the
respiratory tract with burning pain in the nose and throat, coughing,
wheezing, shortness of breath and pulmonary edema. Causes chemical
burns to the respiratory tract. Inhalation may be fatal as a result
of spasm, inflammation, edema of the larynx and bronchi, chemical
pneumonitis and pulmonary edema.
Chronic:
None
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
soap and water for at least 15 minutes while removing contaminated
clothing and shoes. Wash clothing before reuse. Destroy contaminated
shoes.
Ingestion:
Do NOT induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Never give anything by mouth to an
unconscious person. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure to fresh air
immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen.
Notes to Physician:
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
Evacuate area and fight fire from a safe distance. As in any fire,
wear a self-contained breathing apparatus in pressure-demand,
MSHA/NIOSH (approved or equivalent), and full protective gear. Strong
oxidizer. Contact with combustible materials may cause a fire. During
a fire, irritating and highly toxic gases may be generated by thermal
decomposition or combustion. Containers may explode in the heat of a
fire. Flammable liquid and vapor. Vapors may be heavier than air.
They can spread along the ground and collect in low or confined
areas.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Use dry chemical,
carbon dioxide, or alcohol-resistant foam. Do NOT use halogenated
agents.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Scoop up with a nonsparking tool, then place into a suitable
container for disposal. Absorb spill using an absorbent,
non-combustible material such as earth, sand, or vermiculite. Do not
use combustible materials such as saw dust. Use a spark-proof tool.
Provide ventilation.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use only in a well-ventilated area. Use
spark-proof tools and explosion proof equipment. Do not get in eyes,
on skin, or on clothing. Empty containers retain product residue,
(liquid and/or vapor), and can be dangerous. Avoid contact with
clothing and other combustible materials. Do not ingest or inhale. Do
not pressurize, cut, weld, braze, solder, drill, grind, or expose
empty containers to heat, sparks or open flames.
Storage:
Keep away from sources of ignition. Do not store near combustible
materials. Store in a cool, dry place. Do not store in direct
sunlight. Store in a tightly closed container. Flammables-area. Keep
refrigerated. (Store below 4C/39F.)
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use process enclosure, local exhaust ventilation, or other
engineering controls to control airborne levels below recommended
exposure limits. Use explosion-proof ventilation equipment.
Personal Protective Equipment
Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
Follow the OSHA respirator regulations found in 29CFR
1910.134 or European Standard EN 149. Always use a
NIOSH or European Standard EN 149 approved respirator
when necessary.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Liquid
Appearance: clear
Odor: None reported.
pH: Not available.
Vapor Pressure: 174 mm Hg @ 20 C
Viscosity: Not available.
Boiling Point: 40 deg C @ 23mm
Freezing/Melting Point: -35 deg C
Autoignition Temperature: Not applicable.
Flash Point: 26.7 deg C ( 80.06 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Slightly soluble in water.
Specific Gravity/Density: 0.8960 @ 20 C
Molecular Formula: C4H10O2
Molecular Weight: 90.07
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions.
Conditions to Avoid:
Mechanical shock, ignition sources, combustible materials, reducing
agents, temperatures above 75C (167F).
Incompatibilities with Other Materials:
Strong reducing agents, finely powder metals, strong acids, strong
bases, molecular sieves, and 1,2-dichloroethane.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon
dioxide.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 75-91-2: EQ4900000
LD50/LC50:
CAS# 75-91-2: Draize test, rabbit, eye: 100 mg/24H Moderate; Draize
test, rabbit, eye: 70 uL Severe; Draize test, rabbit, skin: 500
mg/24H Severe; Inhalation, mouse: LC50 = 350 ppm/4H; Inhalation,
rat: LC50 = 500 ppm/4H; Oral, mouse: LD50 = 320 mg/kg; Oral, rat:
LD50 = 370 mg/kg; Skin, rabbit: LD50 = 460 uL/kg; Skin, rat: LD50 =
790 mg/kg.
Carcinogenicity:
Tert-butyl hydroperoxide -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Products which are considered hazardous for supply are classified as Special
Waste and the disposal of such chemicals is covered by regulations which may
vary according to location. Contact a specialist disposal company or the local
waste regulator for advice. Empty containers must be decontaminated before
returning for recycling.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: ORGANIC PEROXIDE, TYPE F, LIQUID
Hazard Class: 5.2
UN Number: 3109
Packing Group: II
IMO
Shipping Name: ORGANIC PEROXIDE, TYPE F, LIQUID
Hazard Class: 5.2
UN Number: 3109
Packing Group: II
RID/ADR
Shipping Name: ORGANIC PEROXIDE, TYPE F, LIQUID
Dangerous Goods Code: 5.2(02D)
UN Number: 3109
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: O C
Risk Phrases:
R 20/21/22 Harmful by inhalation, in contact with
skin and if swallowed.
R 34 Causes burns.
R 8 Contact with combustible material may cause
fire.
Safety Phrases:
S 3 Keep in a cool place.
S 28 After contact with skin, wash immediately
with...
WGK (Water Danger/Protection)
CAS# 75-91-2: No information available.
United Kingdom Occupational Exposure Limits
Canada
CAS# 75-91-2 is listed on Canada's DSL List.
CAS# 75-91-2 is listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 75-91-2: OEL-GERMANY
OEL-RUSSIA:STEL 5 mg/m3;Skin
US FEDERAL
TSCA
CAS# 75-91-2 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 12/12/1997 Revision #2 Date: 7/03/2001
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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