EMS CATALOG NO: 71000 
EMS PRODUCT: Freon
DATE:   05/13/96
PAGE NUMBER:  One of 5



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
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CONTACT ELECTRON MICROSCOPY SCIENCES OFFICE ABOVE.

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PRODUCT IDENTIFICATION
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PRODUCT NAME: Freon TF Solvent

CAS NUMBER: 76-13-1

CAS NAME: Trichlorotrifluoroethane

CHEMICAL FORMULA: CCl2FCClF2

CHEMICAL FAMILY: Halogenated Hydrocarbon

SYNONYMS: Trichlorotrifluoroethane; FC-113: Freon TF; Freon PCA
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PHYSICAL DATA
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BOILING POINT: 117.6oF
PERCENT VOLATILE BY VOLUME: 100
DENSITY: 1.57 g/cc at 77oF
VAPOR PRESSURE: 334 mm Hg at 77oF
VAPOR DENSITY (AIR=1): 6.5
SOLUBILITY IN H2O: 0.2% wt at 77oF
pH INFORMATION: Neutral
EVAPORATION RATE (CCl4=1): 0.1
FORM: Liquid
APPEARANCE: Clear
COLOR: Colorless
ODOR: Slight ethereal color
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HAZARDOUS COMPONENTS
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MATERIAL(S) APPROXIMATE %
Trichlorotrifluoroethane 100
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HAZARDOUS REACTIVITY
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STABILITY: Material is stable. However, avoid open flame and high
temperatures.

DECOMPOSITION:

This material can be decomposed by high temperatures (open flames,
glowing metal surfaces, etc.) forming hydrochloric acids and possible
carbonyl halides.

INCOMPATIBILITY: Alkali or alkaline earth metals - powdered Al, Zn,
Be, etc.

POLYMERIZATION: Will not occur.
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FIRE AND EXPLOSION DATA
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FLASH POINT: None
METHOD: TOC

AUTOIGNITION TEMPERATURE: Not determined

FLAMMABLE LIMITS IN 
AIR, % BY VOL.: LOWER: Non-flammable
UPPER: Non-flammable

AUTODECOMPOSITION TEMPERATURE: Not determined

FIRE AND EXPLOSION: Containers may rupture under fire conditions.

EXTINGUISHING MEDIA: Non-flammable

SPECIAL FIRE FIGHTING INSTRUCTIONS:

Self-contained breathing apparatus may be required if containers
rupture and contents are spilled under fire conditions.
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HEALTH HAZARD INFORMATION
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PRINCIPAL HEALTH HAZARDS:

INHALATION: 

Vapor is heavier than air and can cause suffocation by reducing
oxygen available for breathing. Breathing high concentrations of
vapor may cause light-headedness, giddiness, shortness of breath,
and may lead to narcosis, cardiac irregularities, unconsciousness
or death. Trichlorotrifluoroethane - LC50 Rats 52,000 ppm/4 hrs.

SKIN:

Not a corrosive or irritant after single contact; however, repeated
liquid contact can cause defatting of the skin resulting in irritation.
The material is poorly absorbed through the skin (Rabbit ALD > 11,000
mg/kg).

EYE: Liquid contact can cause discomfort, usually no extended effect.

ORAL: Although oral toxicity is low (LD50 Rat 43,000 mg/kg), ingestion
of Freon TF is to be avoided.

NOTE:

In screening studies with experimental animals, exposure at approximately
5,000 ppm (v/) and above, followed by a large intravenous epinephrine
challenge, has induced serious cardiac irregularities.

EXPOSURE LIMITS:

MATERIAL TLV (ACGIN) PEL (OSHA)

Trichlorotrifluoroethane 1000 ppm 1000 ppm

SAFETY PRECAUTIONS:

Avoid breathing vapors, ingestion, or contact of liquid with
skin or eyes. Use only in well ventilated areas.

FIRST AID:

INHALATION:

Remove to fresh air, call a physician. If not breathing, give 
artificial respiration, preferably mouth-to-mouth. If breathing 
is difficult, give oxygen. Do not give epinephrine or similar drugs.

EYES: In case of contact, immediately flush eyes with plenty of
water for at least 15 minutes. Call a physician.

SKIN: Flush with water. Get medical attention if irritation is
present.

ORAL: 

No specific intervention is indicated as the compound is not likely
to be hazardous by ingestion. However, consult a physician if necessary.
Do not induce vomiting as the hazard of aspirating the material
into the lungs is a greater hazard than allowing it to progress
through the intestinal tract.

NOTE TO PHYSICIAN:

Because of possible increased risk of eliciting cardiac drsrythmias,
catecholamine drugs, such as epinephrine, should be considered only
as a last resort in the threatening emergencies.

MEDICAL CONDITIONS POSSIBLY AGGRAVATED BY EXPOSURE:

CARDIOVASCULAR DISEASE: See PRINCIPAL HAZARDS:INHALATION SECTION.

OTHER HEALTH HAZARDS:

Freon TF is not listed as a carcinogen by IARC, NTP or OSHA. 
Based on animal studies and human experiences the fluorocarbon poses
no hazard to man relative to systemic toxicity, carcinogenicity,
mutagenicity, or teratogenicity when occupational exposures are
below its TLV.
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PROTECTION INFORMATION
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GENERALLY APPLICABLE CONTROL MEASURES:

Normal ventilation for standard manufacturing procedures is generally
adequate. Local exhaust should be used when large amounts are released.
Mechanical ventilation should be used in low places.

PERSONAL PROTECTIVE EQUIPMENT:

Butyl gloves should be used to avoid prolonged or repeated
exposure. Chemical splash goggles should be available for use as
needed to prevent eye contact. Under normal manufacturing conditions
no respiratory protection is required when using this product. 
Self-contained breathing apparatus (SCBA) is required if a large
spill occurs.
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DISPOSAL INFORMATION
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SPILL, LEAK OR RELEASE:

Ventilate area. Do not flush into sewers. Dike spill. Collect
on absorbent material and transfer to steel drums for recovery or
disposal. Comply with Federal, State, and local regulations on 
reporting releases.

WASTE DISPOSAL:

Comply with Federal, State, and local regulations. Remove to a
permitted waste disposal facility. EPA Hazardous Waste Nos. F001
and F002 may apply to waste materials.
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SHIPPING INFORMATION
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DOMESTIC - OTHER THAN AIR (DOT):

PROPER SHIPPING NAME: Not regulated

INTERNATIONAL WATER OR AIR (IMO/ICAO):

PROPER SHIPPING NAME: Not regulated

OTHER INFORMATION:

SHIPPING CONTAINERS: Quarts, gallons, 5 gallons, drums

STORAGE CONDITIONS:

Store in clean, dry area. Do not heat above 125oF. 
Rotate stock to a shelf life of one year.