EMS CATALOG NO: 18550
EMS PRODUCT: 2-Methylbutane
DATE: 09/25/2001
PAGE NUMBER: One of 7
MATERIAL SAFETY DATA SHEET
The information contained herein is based on data considered
accurate. However, no warranty is expressed or implied
regarding the accuracy of these data or the results to be
obtained from the use thereof.
Electron Microscopy Sciences assumes no responsibility for
personal injury or property damage to vendees, users or
third parties caused by the material. Such vendees or users
assume all risks associated with the use of the material.
ELECTRON MICROSCOPY SCIENCES
321 MORRIS ROAD
P.O. BOX 251
FORT WASHINGTON, PA 19034 24 HOUR EMERGENCY PHONE NUMBER
(215) 646-1566 CHEMTREC: (800) 424-9300
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FOR PRODUCT AND SALES INFORMATION
_________________________________________________________________
CONTACT ELECTRON MICROSCOPY SCIENCES OFFICE ABOVE.
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PRODUCT IDENTIFICATION
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PRODUCT NAME: 2-Methylbutane
SYNONYM: Isopentane
CHEMICAL FORMULA: C5H12
CAS# 78-78-4
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COMPOSITION AND INFORMATION ON INGREDIENTS
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NAME: 2-Methylbutane
CAS#: 78-78-4
% BY WEIGHT: 100
TOXICOLOGICAL DATA ON INGREDIENTS:
LD50: Not available.
LC50: Not available.
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HAZARDS IDENTIFICATION
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POTENTIAL ACUTE HEALTH EFFECTS:
Slightly dangerous to dangerous in case of eye contact
(irritant), of ingestion, of inhalation. Very slightly to
slightly dangerous in case of skin contact (irritant,
permeator). This product may irritate eyes and skin upon
contact.
POTENTIAL CHRONIC HEALTH EFFECTS:
CARCINOGENIC EFFECTS: Not available.
MUTAGENIC EFFECTS: Not available.
TERATOGENIC EFFECTS: Not available.
Toxicity of the product to the reproductive system: Not
available. There is no known effect from chronic exposure
to this product. Repeated or prolonged exposure is not
known to aggravate medical condition.
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FIRST AID MEASURES
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EYE CONTACT:
Check for and remove any contact lenses. DO NOT use an eye
ointment. Seek medical attention.
SKIN CONTACT:
If the chemical got onto the clothed portion of the body,
remove the contaminated clothes as quickly as possible,
protecting your own hands and body. Place the victim under
a deluge shower. If the chemical touches the victim's
exposed skin, such as the hands: Gently and thoroughly wash
the contaminated skin with running water and non-abrasive
soap. Be particularly careful to clean folds, crevices,
creases and groin. Cover the irritated skin with an
emollient. If irritation persists, seek medical attention.
Wash contaminated clothing before reusing.
SERIOUS SKIN CONTACT: No additional information.
INHALATION:
Allow the victim to rest in a well ventilated area. Seek
immediate medical attention.
SERIOUS INHALATION:
Evacuate the victim to a safe area as soon as possible.
Loosen tight clothing such as a collar, tie, belt or
waistband. If breathing is difficult, administer oxygen.
If the victim is not breathing, perform mouth-to-mouth
resuscitation. Seek medical attention.
INGESTION:
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Remove dentures if any. Watch for an obstruction in the
victim's mouth. Remove if possible what is causing the
obstruction but do not force fingers or a hard object
between the victim's teeth. Have conscious person drink
several glasses of water or milk. INDUCE VOMITING by
sticking finger in throat. Seek immediate medical
attention.
SERIOUS INGESTION:
Remove dentures if any. Watch for an obstruction in the
victim's mouth. Remove if possible what is causing the
obstruction but do not force fingers or a hard object
between the victim's teeth. If a soft pad can be inserted
between the victim's teeth, it will protect the tongue from
being bitten. A badly bleeding tongue immensely complicates
the patient's problems. Have conscious person drink several
glasses of water or milk. INDUCE VOMITING by sticking
finger in throat. Lower the head so that the vomit will not
reenter the mouth and throat. If convulsions occur, do not
restrain the victim, but do not remove objects with which he
(she) might injure himself (herself) or orient the victim to
prevent him (her) from striking fixed heavy objects. If the
convulsions cease, turn the victim on the side or face down
so that any fluid in the mouth will drain. Seek medical
attention.
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FIRE AND EXPLOSION DATA
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FLAMMABILITY OF THE PRODUCT: Flammable.
AUTO-IGNITION TEMPERATURE: 420oC (788oF)
FLASH POINTS: Closed Cup:-51oC (-59.8oF)
FLAMMABLE LIMITS:
LOWER: 1.3%
UPPER: 8.3%
PRODUCTS OF COMBUSTION: These products are carbon oxides (CO,
CO2).
FIRE HAZARDS IN PRESENCE OF VARIOUS SUBSTANCES:
Slightly flammable to flammable in presence of open flames
and sparks. Very slightly to slightly flammable in presence
of oxidizing materials.
EXPLOSION HAZARDS IN PRESENCE OF VARIOUS SUBSTANCES:
RISKS OF EXPLOSION OF THE PRODUCT IN PRESENCE OF MECHANICAL
IMPACT: Not available.
RISKS OF EXPLOSION OF THE PRODUCT IN PRESENCE OF STATIC
DISCHARGE: Not available.
Very slightly to slightly explosive in presence of oxidizing
materials.
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FIRE FIGHTING MEDIA AND INSTRUCTIONS: Flammable liquid, insoluble
in water.
SMALL FIRE: Use DRY chemicals, CO2, alcohol foam or water
spray.
LARGE FIRE: Use water spray or fog. Cool containing vessels
with water jet in order to prevent pressure
build-up. autoignition or explosion.
SPECIAL REMARKS ON FIRE HAZARDS: No additional remark.
SPECIAL REMARKS ON EXPLOSION HAZARDS: No additional remark.
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ACCIDENTAL RELEASE MEASURES
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SMALL SPILL:
Absorb with an inert material and put the spilled material
in an appropriate waste disposal.
LARGE SPILL:
Flammable liquid, insoluble in water. Keep away from heat.
Keep away from sources of ignition. Stop leak if without
risk. Absorb with DRY earth, sand or other non-combustible
material DO NOT get wet inside container. DO NOT touch
spilled material. Prevent entry into sewers, basements or
confined areas; dike if needed. Eliminate all sources of
ignition. Call for assistance on disposal.
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HANDLING AND STORAGE
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PRECAUTIONS:
Keep away from heat. Keep away from sources of ignition.
Ground all equipment containing material. Do not breathe
gas, fumes, vapor or spray. Avoid contact with eyes. Wear
suitable protective clothing. In case of insufficient
ventilation, wear suitable respiratory equipment. If you
feel unwell, seek medical attention and show the label when
possible.
STORAGE:
Flammable materials should be stored in a separate safety
storage cabinet or room. Keep away from heat. Keep away
from sources of ignition. Keep container tightly closed.
Keep in a cool, well-ventilated place. Ground all equipment
containing material. A refrigerated room would be
preferable for materials with a flash point lower than
37.8oC (100oF).
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EXPOSURE CONTROLS/PERSONAL PROTECTION
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ENGINEERING CONTROLS:
Provide exhaust ventilation or other engineering controls to
keep the airborne concentrations of vapors below their
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respective threshold limit value. Ensure that eyewash
station and safety shower is proximal to the work-station
location.
PERSONAL PROTECTION:
Splash goggles. Lab coat. Vapor respirator. Be sure to use
a MSHA/NIOSH approved respirator or equivalent. Wear
appropriate respirator when ventilation is inadequate.
PERSONAL PROTECTION IN CASE OF A LARGE SPILL:
Splash goggles. Full suit. Vapor respirator. Boots.
Gloves. A self contained breathing apparatus should be used
to avoid inhalation of the product. Suggested protective
clothing might not be sufficient; consult a specialist
BEFORE handling this product.
EXPOSURE LIMITS: Not available.
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PHYSICAL AND CHEMICAL PROPERTIES
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PHYSICAL STATE AND APPEARANCE: Liquid.
ODOR: Not available.
TASTE: Not available.
COLOR: Not available.
MOLECULAR WEIGHT: 72.15
pH (1% SOLN/WATER): Not applicable.
BOILING POINT: 27.85oC (82.1oF)
MELTING POINT: -159.9oC (-255.8oF)
CRITICAL TEMPERATURE: Not available.
SPECIFIC GRAVITY: 0.6197 (Water=1)
VAPOR PRESSURE: 595 mm of Hg (@20oC)
VAPOR DENSITY: 2.48 (Air=1)
VOLATILITY: Not available.
ODOR THRESHOLD: Not available.
WATER/OIL DIST. COEFF.: Not available.
IONICITY (IN WATER): Not available.
DISPERSION PROPERTIES: Not available.
SOLUBILITY: Insoluble in cold water.
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STABILITY AND REACTIVITY DATA
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STABILITY: The product is stable.
INSTABILITY TEMPERATURE: Not available.
CONDITIONS OF INSTABILITY: No additional remark.
INCOMPATIBILITY WITH VARIOUS SUBSTANCES: No specific information
is available in our database regarding the reactivity of
this material in presence of various other materials.
CORROSIVITY: Non corrosive in presence of glass.
SPECIAL REMARKS ON REACTIVITY: No additional remark.
SPECIAL REMARKS ON CORROSIVITY: No additional remark.
POLYMERIZATION: No.
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TOXICOLOGICAL INFORMATION
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ROUTES OF ENTRY: Ingestion. Inhalation.
TOXICITY TO ANIMALS:
LD50: Not available.
LC50: Not available.
CHRONIC EFFECTS ON HUMANS: Toxicity of the product to the
reproductive system: Not available.
OTHER TOXIC EFFECTS ON HUMANS: Slightly dangerous to dangerous in
case of eye contact (irritant), of ingestion, of
inhalation. Very slightly to slightly dangerous in case of
skin contact (irritant, permeator).
SPECIAL REMARKS ON TOXICITY TO ANIMALS: No additional remark.
SPECIAL REMARKS ON CHRONIC EFFECTS ON HUMANS: No additional
remark.
SPECIAL REMARKS ON OTHER TOXIC EFFECTS ON HUMANS: No additional
remark.
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ECOLOGICAL INFORMATION
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ECOTOXICITY: Not available.
BOD5 AND COD: Not available.
PRODUCTS OF BIODEGRADATION: These products are carbon oxides
(CO, CO2).
TOXICITY OF THE PRODUCTS OF BIODEGRADATION: The products of
degradation are more toxic.
SPECIAL REMARKS ON THE PRODUCTS OF BIODEGRADATION: No additional
remark.
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DISPOSAL CONSIDERATIONS
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WASTE DISPOSAL: Recycle to process, if possible. Consult your
local or regional authorities.
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TRANSPORT INFORMATION
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DOT CLASSIFICATION: DOT CLASS 3: Flammable liquid.
IDENTIFICATION: Pentane UN1265 I
SPECIAL PROVISIONS FOR TRANSPORT: No additional remark.
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OTHER REGULATORY INFORMATION
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FEDERAL AND STATE REGULATIONS:
The following product(s) is (are) listed by the State of
Massachusetts: Isopentane
The following product(s) is (are) listed by the State of
Pennsylvania: Isopentane
The following product(s) is (are) listed on TSCA: Isopentane
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OTHER REGULATIONS:
OSHA: Hazardous by definition of Hazard Communications
Standard (29 CFR 1910.1200).
OTHER CLASSIFICATIONS:
WHMIS(CANADA): WHMIS CLASS B-2: Flammable liquid with a
flash point lower than 37.8oC (100oF).
DSCL (EEC): R12-Extremely flammable.
R18-In use, may form flammable/explosive
vapor-air mixture.
HMIS (U.S.A.):
HEALTH HAZARD: 2
FIRE HAZARD: 4
REACTIVITY: 0
PERSONAL PROTECTION: j
NATIONAL FIRE PROTECTION ASSOCIATION (U.S.A.)
HEALTH: 1
FLAMMABILITY: 4
REACTIVITY: 0
SPECIFIC HAZARD:
PROTECTIVE EQUIPMENT:
Lab coat.
Vapor respirator. Be sure to use a MSHA/NIOSH approved
respirator or equivalent. Wear
appropriate respirator when ventilation
is inadequate.
Splash goggles.
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