|
Section 1 - Chemical Product and Company Identification |
MSDS Name: Mesityl oxide
Catalog Numbers:
AC125600000, AC125600010, AC125600025, AC125600050, AC413700000, AC413700010
AC413700010, AC413700030, AC413701000
Synonyms:
4-Methyl-3-penten-2-one.
Company Identification:
Acros Organics N.V.
One Reagent Lane
Fair Lawn, NJ 07410
For information in North America, call: 800-ACROS-01
For emergencies in the US, call CHEMTREC: 800-424-9300
|
Section 2 - Composition, Information on Ingredients
|
| CAS# |
Chemical Name |
Percent |
EINECS/ELINCS |
| 141-79-7 |
Mesityl oxide |
91+ | 205-502-5 |
|
Section 3 - Hazards Identification
|
EMERGENCY OVERVIEW
Appearance: clear colorless liquid. Flash Point: 28 deg C.
Warning! Flammable liquid and vapor. Harmful if
swallowed, inhaled, or absorbed through the skin. Causes eye, skin,
and respiratory tract irritation.
Target Organs: Kidneys, central nervous system,
liver, respiratory system, eyes, skin.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed. May cause irritation of the digestive tract.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation.
Chronic:
May cause liver and kidney damage. Exposure to high concentrations
may cause central nervous system depression.
|
Section 4 - First Aid Measures
|
Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid imme
diately.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing
and shoes.
Ingestion:
Do not induce vomiting. Get medical aid immediately. Call a poison
control center.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If breathing is difficult, give oxygen. Do not use
mouth-to-mouth resuscitation if victim ingested or inhaled the
substance; induce artificial respiration with the aid of a pocket
mask equipped with a one-way valve or other proper respiratory
medical device.
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 can travel to a source of ignition and flash
back. Will burn if involved in a fire. Containers may explode in the
heat of a fire. Flammable liquid and vapor. Vapors may form an
explosive mixture with air.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.
Flash Point: 28 deg C ( 82.40 deg F)
Autoignition Temperature: 340 deg C ( 644.00 deg F)
Explosion Limits, Lower:1.4%
Upper: 7.2%
NFPA Rating:
(estimated) Health: 2; Flammability: 3; Instability: 1
|
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. Wear a self contained breathing
apparatus and appropriate personal protection. (See Exposure
Controls, Personal Protection section). Remove all sources of
ignition. Use a spark-proof tool. Do not let this chemical enter the
environment.
|
Section 7 - Handling and Storage
|
Handling:
Use spark-proof tools and explosion proof equipment. Do not get in
eyes, on skin, or on clothing. Keep away from heat, sparks and flame.
Do not ingest or inhale. Use only in a chemical fume hood.
Storage:
Keep away from sources of ignition. Store in a cool, dry place.
Store in a tightly closed container. 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 only under a chemical fume hood.
Exposure Limits
| Chemical Name |
ACGIH |
NIOSH |
OSHA - Final PELs |
| Mesityl oxide
|
15 ppm TWA; 25 ppm STEL
|
10 ppm TWA; 40 mg/m3 TWA 1400 ppm IDLH (10% LEL)
|
25 ppm TWA; 100 mg/m3 TWA
|
OSHA Vacated PELs:
Mesityl oxide:
15 ppm TWA; 60 mg/m3 TWA
Personal Protective Equipment
Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
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
Appearance: clear colorless
Odor: none reported
pH: Not available.
Vapor Pressure: 10.53 mbar @ 20 deg C
Vapor Density: Not available.
Evaporation Rate:Not available.
Viscosity: Not available.
Boiling Point: 129 deg C @ 760 mmHg
Freezing/Melting Point:-53 deg C
Decomposition Temperature:Not available.
Solubility: 28 g/L (20癈)
Specific Gravity/Density:0.854
Molecular Formula:C6H10O
Molecular Weight:98.14
|
Section 10 - Stability and Reactivity
|
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, ignition sources, excess heat.
Incompatibilities with Other Materials:
Reducing agents, acids, bases, halogens.
Hazardous Decomposition Products:
Carbon monoxide, carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported.
|
Section 11 - Toxicological Information
|
RTECS#:
CAS# 141-79-7:
SB4200000
LD50/LC50:
CAS# 141-79-7:
Draize test,
rabbit, eye: 20 mg Severe;
Inhalation, mouse: LC50 = 10
gm/m3/2H;
Inhalation, rat: LC50 =
9 gm/m3/4H;
Oral, mouse: LD50 =
710 mg/kg;
Oral, rabbit: LD50 = 1
gm/kg;
Oral, rat: LD50 = 1120
mg/kg;
Skin, rabbit: LD50 = 5150
mg/kg;
.
TCLo (Inhalation, Human) = 25 ppm; TCLo (Inhalation, rat) =
500ppm/8H; Kidney, Ureter, Bladder - other changes; Related to
Chronic Data - death.
Carcinogenicity:
CAS# 141-79-7:
Not listed by ACGIH, IARC, NTP, or CA Prop 65.
Epidemiology:
No information found
Teratogenicity:
No information found
Reproductive Effects:
No information found
Mutagenicity:
No information found
Neurotoxicity:
No information found
Other Studies:
|
Section 12 - Ecological Information
|
Ecotoxicity:
Fish: Goldfish: LC50 = 540 mg/L; 24 Hr.; Modified ASTM D1345
No data available.
Environmental:
Although the biodegradation screening studies available are not
specific to soil media, these studies suggest that biodegradation of
mesityl oxide may be significant. An estimated Koc value of 15.3
suggests high mobility and leaching in soil. Based on an estimated
vapor pressure of 8.21 mm Hg at 20 deg C, mesityl oxide can be
expected to evaporate from dry soil surfaces. Volatilization
half-lives of 1.1 and 12.2 days have been estimated for a model
river (one meter deep) and a model environmental pond.
Physical:
Based on an estimated vapor pressure of 8.21 mm Hg at 20 deg C,
mesityl oxide can be expected to exist almost entirely in the
vapor-phase in the ambient atmosphere. Vapor-phase mesityl oxide is
degraded relatively rapidly in the ambient atmosphere by reaction
with photochemically formed hydroxyl radicals. The half-life for this
reaction in typical air can be estimated to be about 4.8 hrs.
Vapor-phase mesityl oxide is degraded rapidly in the ambient
atmosphere by direct photolysis with an experimental half-life and
rate constant of 76.8 hr.
Other:
Using a standard BOD technique with sewage inoculum, a theoretical
BOD of 74% was determined for mesityl oxide over a 5-day incubation
period. Using a standard BOD technique with activated sewage sludge
inoculum, a theoretical BOD of at least 30% was measured for mesityl
oxide over a 14-day incubation period
|
Section 13 - Disposal Considerations
|
Chemical waste generators must determine whether a discarded chemical is classified
as a hazardous waste.
US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3.
Additionally, waste generators must consult state and local hazardous waste regulations to
ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.
|
Section 14 - Transport Information
|
| |
US DOT |
Canada TDG |
| Shipping Name: |
MESITYL OXIDE |
MESITYL OXIDE |
| Hazard Class: |
3 |
3 |
| UN Number: |
UN1229 |
UN1229 |
| Packing Group: |
III |
III |
| Additional Info: | | FLASHPOINT 28C |
|
Section 15 - Regulatory Information
|
US FEDERAL
TSCA
CAS# 141-79-7 is listed on the TSCA inventory.
Health & Safety Reporting List
CAS# 141-79-7: Effective 10/4/82, Sunset 10/4/92
Chemical Test Rules
CAS# 141-79-7: 40 CFR 799.5000
Section 12b
None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
None of the chemicals in this material have a SNUR under TSCA.
CERCLA Hazardous Substances and corresponding RQs
None of the chemicals in this material have an RQ.
SARA Section 302 Extremely Hazardous Substances
None of the chemicals in this product have a TPQ.
SARA Codes
CAS # 141-79-7: immediate, delayed, fire.
Section 313
No chemicals are reportable under Section 313.
Clean Air Act:
This material does not contain any hazardous air pollutants.
This material does not contain any Class 1 Ozone depletors.
This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
None of the chemicals in this product
are listed as Hazardous Substances under the CWA.
None of the chemicals in this
product are listed as Priority Pollutants under the CWA.
None of the chemicals in this
product are listed as Toxic Pollutants under the CWA.
OSHA:
None of the chemicals in this product
are considered highly hazardous by OSHA.
STATE
CAS# 141-79-7 can be found on the
following state right to know lists: California, New Jersey,
Pennsylvania, Minnesota, Massachusetts.
California Prop 65
California No Significant Risk Level:
None of the chemicals in this product are listed.
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols:
XN
Risk Phrases:
R 10 Flammable.
R 20/21/22 Harmful by inhalation, in contact with skin and if
swallowed.
Safety Phrases:
S 16 Keep away from sources of ignition - No smoking.
S 25 Avoid contact with eyes.
S 33 Take precautionary measures against static discharges.
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# 141-79-7: 1
Canada - DSL/NDSL
CAS# 141-79-7 is listed on Canada's DSL List.
Canada - WHMIS
This product has a WHMIS classification of B2, D1B, D2B.
This product has been classified in accordance with the hazard
criteria of the Controlled Products Regulations and the MSDS
contains all of the information required by those regulations.
Canadian Ingredient Disclosure List
CAS# 141-79-7 is listed on the Canadian Ingredient Disclosure List.
|
Section 16 - Additional Information
|
MSDS Creation Date: 6/24/1999
Revision #7 Date: 2/26/2008
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no event shall Fisher be liable
for any claims, losses, or damages of any third party or for lost profits
or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if Fisher has been advised of
the possibility of such damages.
|
|