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4-tert-Butyltoluene
CAS No.: 98-51-1
Synonyms:
Formula: C11H16
Exact Mass: 148.12500
Molecular Weight: 148.24500
PSA: 0.00000
LogP: 3.29250
Reference Price: $5,161/ton Inquiry Now
4-tert-Butyltoluene 98-51-1 MSDS
Name: 4-tert-Butyltoluene Material Safety Data Sheet
Synonym: p-tert-Butyltoluene; p-Methyl-tert-butylbenzene; 1-Methyl-4-tert-butylbenzene; TBT; para-tertiary-Butyltoluene
CAS: 98-51-1
Section 1 - Chemical Product   MSDS Name:4-tert-Butyltoluene Material Safety Data Sheet
Synonym:p-tert-Butyltoluene; p-Methyl-tert-butylbenzene; 1-Methyl-4-tert-butylbenzene; TBT; para-tertiary-Butyltoluene

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
98-51-1 4-tert-Butyltoluene 96 202-675-9
Hazard Symbols: T
Risk Phrases: 10 22 23 36/37/38

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Flammable. Harmful if swallowed. Toxic by inhalation. Irritating to eyes, respiratory system and skin.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. Not expected to cause an allergic skin reaction. A single prolonged skin exposure is not likely to result in the material being absorbed in harmful amounts.
Ingestion:
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. May cause central nervous system effects and/or neurological effects.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation. May produce cardiovascular effects. Inhalation may cause nausea and headache.
Chronic:
May cause bone marrow abnormalities with damage to blood forming tissues. Exposure to high concentrations may cause central nervous system depression.

Section 4 - FIRST AID MEASURES
  Eyes: In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Get medical aid.
Skin:
In case of contact, flush skin with plenty of water. Remove contaminated clothing and shoes. Get medical aid if irritation develops and persists. Wash clothing before reuse.
Ingestion:
If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Vapors may form an explosive mixture with air.
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 are heavier than air and may travel to a source of ignition and flash back. Vapors can spread along the ground and collect in low or confined areas.
This liquid floats on water and may travel to a source of ignition and spread fire.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Take precautionary measures against static discharges. Keep container tightly closed. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Use only with adequate ventilation. Keep away from heat, sparks and flame. Avoid breathing vapor or mist.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Flammables-area.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Use explosion-proof ventilation equipment. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 98-51-1: United States OSHA: 10 ppm TWA; 60 mg/m3 TWA Belgium - TWA: 1 ppm VLE; 6.2 mg/m3 VLE France - VME: 10 ppm VME; 60 mg/m3 VME Germany: 10 ppm TWA; 60 mg/m3 TWA Malaysia: 1 ppm TWA; 6.1 mg/m3 TWA Netherlands: 1 ppm MAC; 6.1 mg/m3 MAC Spain: 1 ppm VLA-ED; 6.2 mg/m3 VLA-ED Personal Protective Equipment Eyes: Wear chemical splash goggles.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Liquid
Color: clear colorless to pale yellow
Odor: aromatic odor - gasoline-like
pH: Not applicable.
Vapor Pressure: 0.65 mm Hg @ 25 deg C
Viscosity: 1.25 mPa 25 deg C
Boiling Point: 189-192 deg C @ 760 mmHg
Freezing/Melting Point: -54 deg C
Autoignition Temperature: 510 deg C ( 950.00 deg F)
Flash Point: 54 deg C ( 129.20 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Insoluble.
Specific Gravity/Density: .8612 @ 20/4C
Molecular Formula: C11H16
Molecular Weight: 148.25

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Ignition sources, excess heat, confined spaces.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Will not occur.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 98-51-1: XS8400000 LD50/LC50:
CAS# 98-51-1: Draize test, rabbit, eye: 100 mg; Draize test, rabbit, skin: 500 mg/24H Mild; Inhalation, mouse: LC50 = 248 ppm/4H; Inhalation, rat: LC50 = 165 ppm/8H; Oral, mouse: LD50 = 778 mg/kg; Oral, rabbit: LD50 = 1728 mg/kg; Oral, rat: LD50 = 1555 mg/kg; Oral, rat: LD50 = 1600 mg/kg; Skin, rabbit: LD50 = 16934 mg/kg.
Carcinogenicity:
4-tert-Butyltoluene - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Ecotoxicity:
Fish: Goldfish: LC50 =3 mg/L; 24 Hr; UnspecifiedIf released to the atmosphere, TBT will degrade in the vapor-phase by reaction with photochemically produced hydroxyl radicals (estimated half-life of 2.2 days). If released to water, volatilization will be an important process. Volatilization half-lives ranging from 3.6 hrs to 13 days can be estimated. If released to soil, low mobility is expected since TBT adsorbs strongly. Evaporation from dry surfaces should occur.

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: Flammable Liquid, Toxic, N.O.S.
Hazard Class: 3
UN Number: 1992
Packing Group: III
IMO
Shipping Name: Flammable Liquid, Toxic, N.O.S.
Hazard Class: 3
UN Number: 1992
Packing Group: III
RID/ADR
Shipping Name: Flammable Liquid, Toxic, N.O.S.
Hazard Class: 6.1
UN Number: 1992
Packing group: III

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T
Risk Phrases:
R 10 Flammable.
R 22 Harmful if swallowed.
R 23 Toxic by inhalation.
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 16 Keep away from sources of ignition - No
smoking.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 28A After contact with skin, wash immediately with
plenty of water.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 98-51-1: 2
Canada
CAS# 98-51-1 is listed on Canada's DSL List.
CAS# 98-51-1 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 98-51-1 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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