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Date Effective
January 8, 2009
(most recent revision)
Chemical Name/Synonyms:
Methylphenylsiloxane solution
Chemical Family:
Silicone resin solution
Chemical Formula:
Mixture
Product Use:
Vacuum leak sealant
Emergencies
Contacting CHEMTREC 24 Hour Emergency
Use Only #'s
Worldwide phone : 1-(703)-527-3887
Worldwide FAX : 1-(703)-741-6090
Toll-free phone : 1-(800)-424-9300 USA only
Product or Trade Name
SPI # 05144-AB Celvaseal® High Vacuum Leak Sealant, Aerosol Form
Hazardous Components: CAS # Ingredient Name Concentration, % ACGIH TLV OSHA PEL 108-88-3 Toluene 10-30 100 100 ppm 1330-20-7 Xylene < 50 100 100 ppm 67-63-0 Isopropyl alcohol 3-5 400 400 ppm 71-43-2 Benzene (trace impurity) < 0.05 10 1 ppm 74-98-6 Propane 1-10 NA 1000 ppm 75-28-5 Isobutane 1-10 NA NA Nonhazardous Components: 68440-64-2 Diphenyldimethylsiloxane 30-60 NA NA NFPA Rating: Not known
Potential health effects (acute and chronic):
Routes of entry:
Eye: Direct contact irritates slightly with redness
and swelling.
Health Hazards
(acute and chronic): The degree of injury depends on the duration
of exposure.
Inhalation: Vapors may injure lungs, blood, liver, kidneys,
and nervous system. May also cause headache dizziness,
nausea and incoordination. Harmful if inhaled.
Skin: A single relatively short exposure irritates.
Repeated prolonged contact irritates seriously.
Over exposure may irritate internally. Product might
be absorbed through the skin.
Ingestion: Small amounts transferred to the mouth by fingers
should not injure. Swallowing large amounts will
injure seriously and causes vomiting, nausea, and
diarrhea.
Signs and symptoms of exposure:
Prolonged over exposure may injure lungs, kidneys,
liver, blood, and nervous system and aggravate
existing eye, skin and respiratory disorders.
Medical condition aggravated by exposure:
Short vapor exposure may cause drowsiness and
irritate throat.
Routes of entry: Inhalation, ingestion or skin contact.
Carcinogenicity:
Not determined
Emergency and first aid procedures: Take proper precautions to ensure your own health and safety before attempting to rescue and providing first aid. These practices include avoiding all unnecessary exposure and removal of the material from eye, skin and clothing. Inhalation: If symptoms are experienced, move victim to fresh air, if symptoms persist, obtain medical attention. Medical assistance should be obtained at once. Eye contact: Wash eyes with clean low pressure water for fifteen minutes. Seek medical assistance without delay. After all, this is a leak sealant and one should not have curing silicone in their eyes. Skin contact: If the polymer should contact the skin, wipe off and wash with plenty of water. Ingestion: This route of exposure is not anticipated. However, cured silicone resins are not perceived to be highly toxic in the body. Nevertheless, get medical attention immediately. Do not induce vomiting. Prevent aspiration of liquid into lungs. Never give anything by mouth to an unconscious person.
Fire Extinguishing Media: Dry Chemical, water fog, foam, carbon dioxide, other Special Firefighting Procedure: Wear self-contained breathing apparatus due to thermal decomposition of products and protective clothing should be worn. Unusual Fire and explosion hazards: Vapors are heavier than air and can travel along the ground to remote areas. Fire And Explosion Hazard Data Flash Point............... 1.7°C (35°F) Method Used: TCC Flammable Limits in Air... Flammable limit in air, % by vol. (trichloroethylene) LEL (Lower Explosive Limit) : Unknown UEL (Upper Explosive Limit) : Unknown Autoignition Temperature: 464°C (876°F) Extinguishing Media: All standard fire fighting media Special Fire Fighting Procedures: Flammable. Wear respiratory protection if in a confined area. Unusual Fire and Explosion Hazards: Sensitivity to static charge is expected; material has a flash point below 93.3°C (200°F).
Spill Response: Use absorbent material to collect and contain for salvage or disposal. Remove all sources of ignition and wear protective equipment. Use chemical worker goggles. use respiratory protection unless local exhaust ventilation is adequate or air sample data exposures are within TLV and PEL guidelines. Rubber or plastic gloves are recommended. Remove contaminated clothing and shoes as soon as practical and clean before reuse.
Precautions to be taken in handling and storing:
Keep container closed and away from heat. Store in a cool
place below 29°C (85°F). Avoid breathing vapors, if exposed
to high vapor concentrations, leave area at once. Avoid skin
or eye contact. Use only in well-ventilated area. WARNING!
FLAMMABLE! DO NOT INHALE VAPORS!
Other precautions:
When processing at elevated temperatures, provide ventilation to
control exposures within OSHA and ACGIL limits. Aerosol or spray
applications may require added precautions. Evolution rate is
highest during the first few hours, then subsequently approaches
zero.
Do not store neat heat of flame or other source of ignition
(e.g. Electrical wiring or motors).
Other: Keep container tightly closed. Store in cool
dry well ventilated area.
Handling and Storage:
Do not store neat heat of flame or other source of ignition
(e.g. Electrical wiring or motors).
Use protective rubber or plastic gloves when handling to
avoid skin contact. Always use proper eye protection.
Keep protective clothing in good clean condition and clean
thoroughly after each use.
Engineering Controls:
Use only in well ventilated area in order to prevent the build up of
vapors or fumes.
Personal Protection:
Inhalation: Use appropriate respiratory protection when using the
product in aerosol form. Avoid breathing the vapors
of the product.
Skin: Use protective clothing such as long sleeves or a lab coat
and rubber gloves.
Eye: Always use safety glasses, preferably chemical
goggles when using any form of this product.
Boiling Point............ 139°C (282°F) Formula Weight........... Not determined Coeff. of Water/Oil Dist. Not determined pH (Liquids Only)........ Not determined % Volatile By Volume..... 40 Melting Point............ Not applicable Vapor Pressure (Trichloroethylene).at 20°C (in mm Hg)..... 6 Vapor Density/Air is 1... 3.7 Solubility In Water...... Insoluble Appearance and Color...... Clear to amber (aerosol) spray Specific Gravity (Trichloroethylene) at 25°C (77°F)... (H2O = 1): 1.07 Evaporation Rate......... (n-butyl acetate = 1): < 1 Odor..................... Aromatic
Stable: Yes
Hazardous Polymerization:
May occur.
Hazardous Decomposition Products:
COx (Carbon Dioxide / Carbon Monoxide), silicon dioxide, formaldehyde,
and incompletely burned carbon based products.
Conditions to avoid:
Heat and high temperatures. Keep away from sparks and open flame.
Materials to avoid:
Oxidizing and caustic alkalis can cause a reaction under certain
conditions. Reducing agents.
Hazardous Components:
CAS # Ingredient Name OSHA PEL ACGIH TLV Other limits
108-88-3 Toluene 100 ppm 100 ppm STEL 150 ppm
67-63-0 Isopropyl alcohol 400 ppm 400
71-43-2 Benzene(trace impurity) 1 ppm 10 ppm STEL 5 ppm
1330-20-7 Xylene 100 ppm 100
Potential health effects (acute and chronic):
Routes of entry:
Eye: Direct contact irritates slightly with redness
and swelling.
Health Hazards
(acute and chronic): The degree of injury depends on the duration
of exposure.
Inhalation: Vapors may injure lungs, blood, liver, kidneys,
and nervous system.
Skin: A single relatively short exposure irritates.
Repeated prolonged contact irritates seriously.
Over exposure may irritate internally.
Ingestion: Small amounts transferred to the mouth by fingers
should not injure. Swallowing large amounts will
injure seriously.
Signs and symptoms of exposure:
Prolonged over exposure may injure lungs, kidneys,
liver, blood, and nervous system and aggravate
existing eye, skin and respiratory disorders.
Medical condition aggravated by exposure:
Short vapor exposure may cause drowsiness and
irritate throat.
Routes of entry: Inhalation, ingestion or skin contact.
Carcinogenicity:
Not determined
Exotoxicity:
Exotoxicity is expected to be low based the fact that solvents
evaporate quickly and the silicone polymerizes into an inert
substance with virtually no water solubility. No other information
is known on this topic.
Environmental Fate:
No information found in our selected references.
Bioaccumulation:
Not expected to occur.
Disposal considerations: All local, state, federal or other regulations concerning health and pollution should be reviewed to determine approved disposal procedures. Note: Wipe, scrape or soak up with an inert material and put in a container for disposal. Wear protective equipment. Increase ventilation.
Aerosol form of the product:
Proper Shipping Name: Resin Solution (contains toluene, xylene and isopropanol),
aerosols
DOT Hazard Class: Flammable Liquid 3, Aerosols 2.1
UN/NA ID: UN 1866, UN 1950
Packing Group: III
Labels: Flammable liquid, flammable gas
Marine Pollutant: Probably not because of its very low solubility in
water of the final cured resin. Other solvents
evaporate quite quickly.
DOT Status: Regulated
TSCA: All components of this product are listed on the TSCA 8(b) inventory.
If identified components of this product are listed under the TSCA 12(b)
Export Notification Rule, they will be listed below.
TSCA 12(b) Component Listed under TSCA Section
SARA Title 3: Section 313 Information/Emissions Reporting (40 CFR 372):
This product contains chemicals that are subjects to SARA section reporting
requirements.
CERCLA Hazardous Substances and their Reportable Quantities:
Component Reportable Quantity
California Prop. 65:
Proposition 65 requires manufacturers or distributors of consumer products
into the State of California to provide a warning statement if the product
contains ingredients for which the State has found to cause cancer, birth
defects or other reproductive harm. If this product contains an ingredient
listed by the State of California to cause cancer or reproductive toxicity,
it will be listed below:
108-88-3 Toluene 100 ppm 100 ppm STEL 150 ppm
71-43-2 Benzene 1 ppm 10 ppm STEL 5 ppm
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