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| Record Number |
841 |
| CHRIS Code |
MIK |
| Chemical Name |
METHYL ISOBUTYL KETONE |
- Synonym(s)
- 4-Methyl-2-pentanone
Isobutyl methyl ketone
MIBK
Hexone
Isopropylacetone
MIK
| CAS Registry No |
108-10-1 |
| Coast Guard Compatibility Class |
18; Ketone |
| IMO/UN Designation |
3.2/1245 |
| DOT ID Number |
1245 |
| NAERG Guide No. |
127 |
| Chemical Formula |
(CH3)2CHCH2COCH3 |
| Standard Industry Trade Classification |
51625 |
- Characteristics
- Watery liquid Colorless Mild pleasant odor
Floats and mixes slowly with water. Flammable, irritating vapor is
produced.
- Emergency Actions
- Keep people away.
Shut off ignition sources and call fire department.
Stay upwind and use water spray to ``knock down'' vapor.
Avoid contact with liquid and vapor.
Notify local health and pollution control agencies.
- Fire Hazard/Response
- FLAMMABLE.
Flashback along vapor trail may occur.
Vapor may explode if ignited in an enclosed area.
Wear goggles and self-contained breathing apparatus.
Extinguish with dry chemical, alcohol foam, or carbon dioxide.
Water may be ineffective on fire.
Cool exposed containers with water.
- Exposure Hazard/Response
- CALL FOR MEDICAL AID.
VAPOR
Irritating to eyes, nose and throat.
If inhaled, will cause dizziness or loss of consciousness.
Move to fresh air.
If breathing has stopped, give artificial respiration.
If breathing is difficult, give oxygen.
LIQUID
Irritating to skin and eyes.
Harmful if swallowed.
Remove contaminated clothing and shoes.
Flush affected areas with plenty of water.
IF IN EYES, hold eyelids open and flush with plenty of water.
IF SWALLOWED and victim is CONSCIOUS, have victim drink water
or milk.
- Water Pollution Hazard/Response
- Effect of low concentrations on aquatic life is unknown.
Fouling to shoreline.
May be dangerous if it enters water intakes.
Notify local health and wildlife officials.
Notify operators of nearby water intakes.
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| CORRECTIVE RESPONSE ACTIONS |
-
- Dilute and disperse
Stop discharge
Contain
Collection Systems: Skim
Clean shore line
Salvage waterfowl
|
- Personal Protective Equipment
- Organic canister or air pack; rubber gloves; goggles or face shield.
- Symptoms Following Exposure
- Vapor causes irritation of eyes and nose; high concentrations cause anesthesia and depression. Liquid dries out skin and may cause dermatitis; irritates eyes but does not injure them.
- Treatment Of Exposure
- INHALATION: remove to fresh air, give artificial respiration if needed; call a doctor.
SKIN OR EYES: wash eyes thoroughly with water; wash skin with water until irritation stops.
| TLV-TWA |
50 ppm |
| TLV-STEL |
75 ppm |
| TLV-Ceiling |
Not listed. |
| Immediately Dangerous To Life And Health Value (IDLH) |
500 ppm |
- Toxicity By Ingestion
- Grade 2; LD50 = 0.5 to 5 g/kg (rat)
- Toxicity By Inhalation
- Currently not available.
- Chronic Toxicity
- None
- Vapor (Gas) Irritant Characteristics
- Vapors cause a slight smarting of the eyes or respiratory system if present in high concentrations. The effect is temporary.
- Liquid Or Solid Irritant Characteristics
- Minimum hazard. If spilled on clothing and allowed to remain, may cause smarting and reddening of the
skin.
| Odor Threshold |
0.47 ppm |
| OSHA PEL-TWA |
100 ppm |
| OSHA PEL-STEL |
Not listed. |
| OSHA PEL-Ceiling |
Not listed. |
| EPA AEGL |
Not listed. |
|
| Flash Point |
73 deg.F C.C.; 75 deg.F O.C. |
| Flammable Limits In Air |
1.4%-7.5% |
| Behavior In Fire |
Vapors may travel a considerable distance and ignite. |
| Ignition Temperature |
854 deg.F |
| Electrical Hazard |
Class I, Group D |
| Burning Rate |
Currently not available |
| Adiabatic Flame Temperature |
Currently not available |
| Stoichiometric Air To Fuel Ratio |
40.5 (calc.) |
| Flame Temperature |
Currently not available |
| Molar Ratio (Reactant To Product) |
12.0 (calc.) |
| Minimum Oxygen Concentration For Combustion (MOCC) |
Not listed |
- Fire Extinguishing Agents
- Alcohol foam, dry chemical, or carbon dioxide
- Fire Extinguishing Agents Not To Be Used
- Water may be ineffective
- Special Hazards Of Combustion Products
- Irritating vapors are generated when heated.
|
- Reactivity With Water
- No reaction
- Reactivity With Common Materials
- No reaction
- Neutralzing Agents for Acids and Caustics
- Not pertinent
| Polymerization |
Not pertinent |
| Inhibitor Of Polymerization |
Not pertinent |
| Stability During Transport |
Stable |
|
| Food Chain Concentration Potential |
None |
| Aquatic Toxicity |
Currently not available |
| Waterfowl Toxicity |
Currently not available |
| Biological Oxygen Demand (BOD) |
(theor.) 1.8%, 0.5 day; (theor.) 12%, 5 days |
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BIOACCUMULATION AND TAINTING :
O No evidence to support any rating.
DAMAGE TO LIVING RESOURCES :
1 Practically nontoxic; 96 hr LC50: 100-1000 mg/l
HAZARD TO HUMAN HEALTH BY ORAL INTAKE :
1 Practically non-hazardous; LD50: 500-5000 mg/kg
HAZARD TO HUMAN HEALTH BY SKIN AND EYE CONTACT OR INHALATION :
I Slightly hazardous (mild irritation, weak sensitizer)
REDUCTION OF AMENITIES :
X Slightly objectionable, non-interference with use of beaches.
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|
| Grades of Purity |
99+% |
| Storage Temperature |
Ambient |
| Inert Atmosphere |
No requirement |
| Venting |
Open (flame arrester) or pressure-vacuum |
| IMO Pollution Category |
D |
| Ship Type |
Data not avaialable |
| Barge Hull Type |
Currently not available |
|
| 49 CFR Category |
Flammable liquid |
| 49 CFR Class |
3 |
| 49 CFR Package Group |
II |
| Marine Pollutant? |
No |
| EPA Reportable Quantity |
5000 pounds |
| EPA Pollution Category |
D |
| RCRA Waste Number |
U161 |
| EPA FWPCA List? |
Not listed |
| NFPA HAZARD CLASSIFICATION |
| Health Hazard (Blue) |
2 - Materials which on intense or continued exposure could cause
temporary incapacitation or possible residual injury unless
prompt medical treatment is given. |
| Flammability (Red) |
3 - Liquids and solids that can be ignited under almost all ambient
temperature conditions. |
| Reactivity (Yellow) |
0 - Materials which in themselves are normally stable, even under fire
exposure conditions, and which are not reactive with water. |
|
|
| PHYSICAL AND CHEMICAL PROPERTIES |
| Physical State At 15 Degrees C and 1 ATM |
Liquid |
| Molecular Weight |
100.16 |
| Boiling Point at 1 ATM |
241.2 deg.F = 116.2 = 389.4 deg.K |
| Freezing Point |
-119 deg.F = -84 deg.C = 189 deg.K |
| Critical Temperature |
568.9 deg.F = 298.3 deg.C = 571.5 deg.K |
| Critical Pressure |
475 psia = 32.3 atm = 3.27 MN/m2 |
| Vapor (Gas) Specific Gravity |
Not pertinent |
| Specific Gravity |
0.802 at 20 deg.C (liquid) |
| Liquid Surface Tension |
23.6 dynes/cm = 0.0236 N/m at 20 deg.C |
| Liquid Water Interfacial Tension |
15.7 dynes/cm = 0.0157 N/m at 22.7 deg.C |
| Ratio of Specific Heats Of Vapor (Gas) |
1.061 |
| Latent Heat of Vaporization |
149 Btu/lb = 82.5 cal/g = 3.45 X 10(5) J/kg |
| Heat of Combustion |
(estimated) -10,400 Btu/lb = -5,800 cal/g = -242 X 10(5) J/kg |
| Heat of Decomposition |
Not pertinent |
| Heat of Solution |
(estimated) -9 Btu/lb
= -5 cal/g = -0.2 X 10(5) J/kg |
| Heat of Polymerization |
Not pertinent |
| Heat of Fusion |
Currently not available |
| Limiting Value |
Currently not available |
| Reid Vapor Pressure |
0.8 psia |
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- The current database reflects the contents of the CHRIS Manual last published by the U.S. Coast Guard in June, 1999.
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©2003 Canadian Centre for Occupational Health & Safety 