MSDS

Issue Date: 7 November 2013
Page: 4 of 5
SECTION 11 (Continued)
Methyl Ethyl Ketone: Oral rat LD50: 2,737 mg/kg
Inhalation rat LC50: 23,500 mg/m3/8 hours
Skin rabbit LD50: 6,480 mg/kg
Sensitization: None of the components are known to cause sensitization.
Carcinogenicity: None of the components are listed as a carcinogen or suspect
carcinogen by NTP, IARC or OSHA. The National Toxicology Program
has reported that exposure of mice and rats to Tetrahydrofuran
(THF) vapor levels up to 1800 ppm 6 hr/day, 5 days/week for their
lifetime caused an increased incidence of kidney tumors in male
rats and liver tumors in female mice. The significance of these
findings for human health is unclear at this time, and may be
related to "species specific" effects. Elevated incidences of
tumors in humans have not been reported for THF. ACGIH has
classified cyclohexanone (CYH) and tetrahydrofuran (THF) as “A3,”
Confirmed Animal Carcinogens with Unknown Relevance to Humans.
Mutagenicity: Cyclohexanone has been positive in bacterial and mammalian
assays. Acetone, methyl ethyl ketone and tetrahydrofuran are
generally thought not to be mutagenic.
Reproductive Methyl ethyl ketone and cyclohexanone have been shown to cause
Toxicity: embryofetal toxicity and birth defects in laboratory animals.
Acetone and tetrahydrofuran have been found to cause adverse
developmental effects only when exposure levels cause other
toxic effects to the mother.
Medical Persons with pre-existing skin, lung, kidney or liver disorders
Conditions may be at increased risk from exposure to this product.
Aggravated By
Exposure:
SECTION 12 ECOLOGICAL INFORMATION
This product is not expected to be toxic to aquatic organisms.
Cyclohexanone: 96 hour LC50 values for fish is over 100 mg/l.
Tetrahydrofuran: 96 hour LC50 fathead minnow: 2160 mg/L.
Methyl Ethyl Ketone: 96 hour LC50 for fish is greater than 100 mg/L.
Acetone: 96 hour LC50 for fish is greater than 100 mg/L.
VOC This product emits VOC's (volatile organic compounds) in its use.
Information: Make sure that use of this product complies with local VOC emission
regulations, where they exist.
VOC Level:
460 g/l per SCAQMD Test Method 316A.
SECTION 13 DISPOSAL CONSIDERATIONS
Waste Disposal: Dispose in accordance with current local, state and federal
regulations.
RCRA Hazardous Waste Number: U002, U057, U159, U213
EPA Hazardous Waste ID Number: D001, D035, F003, F005
EPA Hazard Waste Class: Ignitable Waste. Toxic Waste (Methyl Ethyl Ketone content)