MATERIAL SAFETY DATA SHEET
Produced date: 2011-06-29
1. Identification of the substance/preparation and the company
Commercial product name
Methyl ethyl ketoxime (MEKO)
Use of the substance/preparation
Solvent, industrial raw material.
Chemical name
2-Butanone oxime, MEK-oxime
CAS-nr
EG-nr
Index-nr
Company
Adress
96-29-7
202-496-6
616-014-00-0
Fred Holmberg & Co AB
Box 60056
S-216 10 Limhamn
Sweden
+46 (0)40 15 79 20
+46 (0)40 16 22 95
fred.info@holmberg.se
Fred Holmberg
Fred Holmberg 040-15 79 20 (office hours) or. 08-33 12 31
toxicity information central (office hours), 112 for emergency
central
Linus Olofsson, Fred Holmberg & Co AB,
Tel. +46 (0)480-42 20 00
Telephone number
Fax
e-mail
Contact person
Emergency telephone number
Created by
2. Hazards Identification
Classification acc. to CLP:
Previous classification:
H312, H317, H318, H351.
Xn; R21, R40, R41, R43.
Hazards:
Harmful in contact with skin.
May cause an allergic skin reaction.
Causes serious eye damage.
Suspected of causing cancer.
3. Composition/Information on ingredients
EG-nr
CAS-nr
Substance name
Content
Classification
202-496-6
96-29-7
Methyl ethyl ketoxime
≥99%
Xn;R21,R40,R41,R43
H312,H317,H318,H351 (CLP)
Safety Data Sheet Methyl ethyl ketoxime (MEKO)
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MATERIAL SAFETY DATA SHEET
4. First aid measures
General
Inhalation
Ingestion
Skin
Eyes
Remove victim immediately from source of exposure. General first aid,
rest, warmth and fresh air. Contact physician if symptoms appear.
If breathed in, move person into fresh air. If not breathing give artificial
respiration Consult a physician.
Never give anything by mouth to an unconscious person. Rinse mouth
with water. Consult a physician.
Wash the skin with plenty of water and soap. If skin irritation persists,
consult a physician.
Rinse immediately with plenty of water, also under the eyelids. Continue
irrigation for several minutes while moving eyes to extreme positions.
Consult a physician (ophthalmologist; risk of corneal damage).
5. Fire-fighting measures
Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry
chemical or carbon dioxide.
Special fire fighting procedures
Move container from fire area if it can be done without
risk. Cool containers exposed to flames with water
until well after the fire is out. Avoid water in straight
hose stream; will scatter and spread fire.
Specific hazards
Solvent vapours may form explosive mixtures with air.
Vapour is heavier than air and may accumulate into
hollows or confined spaces.
Special protective equipment for firefighters Wear personal protective equipment. Wear self
contained breathing apparatus for fire fighting.
6. Accidental release measures
Personal precautions
Environmental precautions
Methods for cleaning up
Avoid inhalation of gases. Evacuate personnel to safe areas. Avoid
contact with skin and eyes. Wear personal protective equipment.
Avoid sparks, flames, heat and smoking. Ventilate.
Prevent product from entering drains or environment.
Extinguish all ignition sources. Avoid sparks, flames, heat and
smoking. Ventilate. Absorb in vermiculite, dry sand or earth and
place into containers. Collect and reclaim or dispose in sealed
containers in licensed waste. Inform authorities if large amounts are
involved. Dispose of in accordance with local regulations.
Safety Data Sheet Methyl ethyl ketoxime (MEKO)
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MATERIAL SAFETY DATA SHEET
7. Handling and storage
Storage
Handling
Store in cool place. Keep container tightly closed in a dry and well-ventilated
place.
Avoid contact with skin and eyes. Avoid inhalation of vapour or mist.
Keep away from sources of ignition - No smoking. Take measures to prevent the
build up of electrostatic
charge.
8. Exposure controls/personal protection
Personal protective equipment
Respiratory protection
Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with
multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to
engineering controls. If the respirator is the sole means of protection, use a full-face supplied air
respirator. Use respirators and components tested and approved under appropriate government
standards such as NIOSH (US) or CEN (EU).
Hand protection
The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the
standard EN 374 derived from it.
Handle with gloves.
Eye protection
Face shield and safety glasses
Skin and body protection
Choose body protection according to the amount and concentration of the dangerous substance at the
work place.
Hygiene measures
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at
the end of workday.
9. Physical and chemical properties
Appearance
Colour
Boiling point/range
Odour
Solubility in water
Density
Flash point
Vapour pressure
Vapour density
Explosion limits
pH
Clear liquid
colourless
152 °C
Mild
10g/100ml H2O, 20°C
0,916 - 0,924 kg/dm³ (25 °C)
62 °C
2 mm Hg (20 °C)
3 (air=1)
1,5-5,3 %
7.0-8.5
Safety Data Sheet Methyl ethyl ketoxime (MEKO)
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MATERIAL SAFETY DATA SHEET
10. Stability and reactivity
Stability
Conditions to avoid
Hazardous polymerisation
Materials to avoid
Hazardous decomp. products
Stable under recommended storage conditions.
Avoid contact with strong oxidisers.
Will not polymerise.
Strong oxidizing agents, Strong acids
No specific hazardous decomposition products noted. Fire or
high temperatures create: Carbon dioxide (CO2). Carbon
monoxide (CO).
11. Toxicological information
Acute toxicity
LD50 Oral - rat - 930 mg/kg
LD50 Subcutaneous - rat - 2.702 mg/kg
Skin corrosion/irritation
Serious eye damage/eye irritation
Eyes - rabbit Respiratory or skin sensitization
May cause allergic skin reaction.
Germ cell mutagenicity
no data available
Carcinogenicity
Limited evidence of carcinogenicity in animal studies
IARC: No component of this product present at levels greater than or equal to 0.1% is identified as
probable, possible or confirmed human carcinogen by IARC.
Reproductive toxicity
no data available
Specific target organ toxicity - single exposure
no data available
Specific target organ toxicity - repeated exposure
no data available
Aspiration hazard
no data available
Potential health effects
Inhalation May be harmful if inhaled. May cause respiratory tract irritation.
Ingestion May be harmful if swallowed.
Skin Harmful if absorbed through skin. May cause skin irritation.
Eyes Causes serious eye irritation.
12. Ecotoxicological information
Toxicity
Toxicity to fish LC50 - Pimephales promelas (fathead minnow) - 843 mg/l - 96 h
Persistence and degradability
Safety Data Sheet Methyl ethyl ketoxime (MEKO)
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MATERIAL SAFETY DATA SHEET
Biologically degradable
Bioaccumulative potential
no data available
Mobility in soil
no data available
PBT and vPvB assessment
no data available
Other adverse effects
no data available
13. Disposal considerations
Disposal methods
This combustible material may be burned in a chemical incinerator
equipped with an afterburner and scrubber. Observe all federal,
state, and local environmental regulations. Contact a licensed
professional waste disposal service to dispose of this material.
Waste class
Dispose of as unused product.
14.Transport information
ADR/RID/IMDG
Not classified as dangerous in the meaning of transport regulations.
15. Regulatory information
Classification acc. to CLP
Signal word:
Danger
Hazard statement(s)
H312 Harmful in contact with skin.
H317 May cause an allergic skin reaction.
H318 Causes serious eye damage.
H351 Suspected of causing cancer.
Safety Data Sheet Methyl ethyl ketoxime (MEKO)
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MATERIAL SAFETY DATA SHEET
Precautionary statement(s)
P280 Wear protective gloves/ eye protection/ face protection.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove
contact lenses, if present and easy to do. Continue rinsing.
P303 + P361 + P353 - IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing.
Rinse skin with water/shower.
Previous classification
Symbol(s)
Harmful
R-phrase(s)
R21 Harmful in contact with skin.
R40 Limited evidence of a carcinogenic effect.
R41 Risk of serious damage to eyes.
R43 May cause sensitization by skin contact.
S-phrase(s)
S13 Keep away from food, drink and animal feedingstuffs.
S23 Do not breathe gas/fumes/vapour/spray.
S26 In case of contact with eyes, rinse immediately with plenty of water and
seek medical advice.
S36/37/39 Wear suitable protective clothing, gloves and eye/face protection.
16. Remaining information
The information in this data sheet is considered to be correct according to present knowledge and
experience, but there is no guarantee that it is complete. It is therefore in the user's interest to ensure that
the information is sufficient for the area it is intended for.
Safety Data Sheet Methyl ethyl ketoxime (MEKO)
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