Here is the relevant information taken from the MSDS for each solvent. For
the complete Data Sheet on each go to http://www.msdsonline.com/Home/. It
will be necessary to sign up for access to the site but there is no fee for
limited access.
Part Number/Trade Name: (ACETONE) ACS, AX0120 DIMETHYL KETONE; 2-PROPANONE
Health Hazard Data
LD50-LC50 Mixture:
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Route Of Entry - Inhalation: N/P
Route Of Entry - Skin: N/P
Route Of Entry - Ingestion: N/P
Health Haz Acute And Chronic:
Carcinogenicity - NTP: N/P
Carcinogenicity - IARC: N/P
Carcinogenicity - OSHA: N/P
Explanation Carcinogenicity:
Signs/Symptoms Of Overexp: NARCOTIC AT HIGH CONCENTRATION.
Med Cond Aggravated By Exp:
Emergency/First Aid Proc: INH: MOVE TO FRESH AIR. EYES: FLUSH W/WATER AT
LEAST 15 MINS. CALL MD.
Precautions for Safe Handling and Use
Steps If Matl Released/Spill: ELIMINATE SOURCES OF IGNITION. FLUSH W/LARGE
VOLUMES OF WATER.
Neutralizing Agent:
Waste Disposal Method: TO BE PERFORMED IN COMPLIANCE W/ALL CURRENT LOC AL,
STATE & FEDERAL REGULATIONS.
Precautions-Handling/Storing: STORE AWAY FROM SOURCE OF IGNITION. EXTREMELY
FLAMMABLE. GROUND DRUMS AT ALL TIMES.
Other Precautions:
Control Measures
Respiratory Protection: NIOSH/MSHA APPRVD ORGANIC CHEM CANISTER OR SUPPLIED
AIR.
Ventilation: LOCAL EXHAUST
Protective Gloves: RUBBER/VINYL
Eye Protection: GOGGLES OR FACE SHIELD
Other Protective Equipment: EYE BATH & SAFETY SHOWER
Work Hygienic Practices:
Suppl. Safety & Health Data: CONTAINER SIZE:1 GAL BOTTLE.
Part Number/Trade Name: 153-7588 METHYL ETHYL KETONE
Health Hazard Data
LD50-LC50 Mixture:
Route Of Entry - Inhalation: YES
Route Of Entry - Skin: NO
Route Of Entry - Ingestion: NO
Health Haz Acute And Chronic: MAY CAUSE IRRITATION OF EYES, SKIN &
RESPIRATORY SYSTEM. NERVOUS SYSTEM DEPRESSION. MAY RESULT IN DEATH.
OVEREXPOSURE TO SOLVENTS MAY CAUSE ADVERSE EFFECTS TO THE LIVER, URIO OD
FORMING & CARDIO-VASCULAR SYSTEMS. REPEATED/PROLONGED OVEREXPOSURE TO
SOLVENTS MAY CAUSE PERMANENT BRAIN & NERVOUS SYSTEM DAMAGE.
Carcinogenicity - NTP: NO
Carcinogenicity - IARC: NO
Carcinogenicity - OSHA: NO
Explanation Carcinogenicity: NONE
Signs/Symptoms Of Overexp: IRRITATION, UNCONSCIOUSNESS, HEADACHE, DIZZINESS,
NAUSEA, LOSS OF COORDINATION, REDNESS, ITCHING, BURNING SENSATION.
Med Cond Aggravated By Exp: NONE
Emergency/First Aid Proc: INHALATION: REMOVE FROM EXPOSURE. RESTORE
BREATHING. KEEP WARM & QUIET. SKIN: WASH THOROUGHLY W/SOAP & WATER. EYES:
FLUSH W/LARGE AMOUNTS OF WATER FOR 15 MINS. OBTAIN MEDICAL ATTENTION IN ALL
CASES.
Precautions for Safe Handling and Use
Steps If Matl Released/Spill: REMOVE ALL SOURCES OF IGNITION. VENTILATE &
REMOVE W/INERT ABSORBENT.
Report for NIIN: 00F049220
Neutralizing Agent: N/K
Waste Disposal Method: WASTE MUST BE TESTED FOR IGNITABILITY TO DETERMINE
THE APPLICABLE EPA HAZARDOUS WASTE NUMBERS. INCINERATE IN APPROVED FACILITY.
DON'T INCINERATE CLOSED CONTAINERS. DISPOSE OF IAW/LOCAL, STATE & FEDERAL
REGULATIONS.
Precautions-Handling/Storing: KEEP CONTAINER CLOSED WHEN NOT IN USE. USE
APPROVED BONDING & GROUNDING PROCEDURES. KEEP AWAY FROM IGNITION SOURCES.
KEEP OUT OF REACH OF CHILDREN.
Other Precautions: DURING USE & UNTIL ALL VAPORS ARE GONE, KEEP AREA
VENTILATED. DON'T SMOKE. TRANSFER ONLY TO APPROVED CONTAINERS W/COMPLETE &
APPROPRIATE LABELING. USE ONLY W/ADEQUATE VENTILATION. AVOID BREATHING
VAPOR/SPRAY MIST. AVOID CONTACT W/SKIN/EYES.
Control Measures
Respiratory Protection: IF EXPOSURE CAN'T BE CONTROLLED <APPLICABLE LIMITS
BY VENTILATION, WEAR A PROPERLY FITTED ORGANIC VAPOR/PARTICULATE RESPIRATOR
APPROVED BY NIOSH/MSHA FOR PROTECTION.
Ventilation: LOCAL EXHAUST: PREFERABLE. GENERAL EXHAUST ACCEPTABLE IF 039549
EXPOSURE IS MAINTAINED <APPLICABLE EXPOSURE LIMITS.
Protective Gloves: RECOMMENDED
Eye Protection: REQUIRED
Other Protective Equipment: SAFETY SPECTACLES W/UNPERFORATED SIDE SHIELDS.
Work Hygienic Practices: REMOVE/LAUNDER CONTAMINATED CLOTHING BEFORE REUSE.
WASH HANDS AFTER USING.
Suppl. Safety & Health Data: DON'T TAKE INTERNALLY. INTENTIONAL MISUSE BY
DELIBERATELY CONCENTRATING & INHALING THE CONTENTS CAN BE HARMFUL. VAPORS
WILL ACCUMULATE READILY & MAY IGNITE EXPLOSIVELY.
-----Original Message-----
Behalf Of jeremycrdavey@btinternet.com
Subject: Re: acetone & MEK
Can anyone comment on the _relative_ nastiness of acetone and MEK, please?
Being about to start building, I'll be getting one or the other in the next
week. I don't mind using more solvent and paying more money if that means
less risk to my health - and Tony's comment on MEK show sound reasons for
concern.
Thanks for any help anyone can offer.
Regards,
Jeremy
Jeremy Davey
Europa XS monowheel 537M
-----Original Message-----
On Behalf Of Tony S. Krzyzewski
Subject: Re: acetone & MEK
Subject: Re: acetone & MEK
I'll add a caution here about MEK which hasn't been voiced on the group
for a few years. This is an extremely strong solvent and, like acetone,
is capable of passing through the pores of the skin.
Effects of methyl ethyl ketone on human health depend on how much MEK is
present and the length and frequency of
exposure. Effects also depend on the health of a person or the
condition of the environment when exposure occurs.
Breathing MEK for short periods of time, such as when painting in a
poorly vented area, can adversely affect the nervous system. Effects
range from headaches, dizziness, nausea, and numbness in fingers and
toes to unconsciousness. MEK vapour irritates the eyes, the nose, and
the throat. Direct, prolonged contact with liquid methyl ethyl ketone
irritates the skin and damages the eyes.
When using MEK (or acetone) always wear protective gloves and use a face
mask and goggles. Never use MEK or acetone to clean your hands.
Build safe.
Tony
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