Flash Point:48 F (9 C) (OC)
Extinguishing Media:alcohol resistant foam, carbon dioxide, regular dry
chemical, water, alcohol resistant foam Large fires: Use
alcohol-resistant foam or flood with fine water spray.
Fire Fighting Procedures:Move container from fire area if it can be
done without risk. Cool containers with water spray until well
after the fire is out. Stay away from the ends of tanks. For fires
in cargo or storage area: Cool containers with water from unmanned
hose holder or monitor nozzles until well after fire is out. If
this is impossible then take the following precautions: Keep
unnecessary people away, isolate hazard area and deny entry. Let
the fire burn. Withdraw immediately in case of rising sound from
venting safety device or any discoloration of tanks due to fire.
For tank, rail car or tank truck: Evacuation radius: 800 meters
(1/2 mile). Water may be ineffective.
Unusual Fire/Explosion Hazard:Severe fire hazard. The vapor is heavier
than air. Vapors or gases may ignite at distant ignition sources
and flash back. Vapor/air mixtures are explosive.

Spill Release Procedures:Avoid heat, flames, sparks and other sources
of ignition. Remove sources of ignition. Stop leak if possible
without personal risk. Reduce vapors with water spray. Small
spills: Absorb with sand or other non-combustible material. Collect
spilled material in appropriate container for disposal. Large
spills: Dike for later disposal. Keep unnecessary people away,
isolate hazard area and deny entry. Stay upwind and keep out of low
areas.
Neutralizing Agent:

Handling and Storage Precautions:Store and handle in accordance with
all current regulations and standards. Subject to storage
regulations: U.S. OSHA 29 CFR 1910.106. Grounding and bonding
required. Protect from physical damage. Keep separated from
incompatible substances. Store outside or in a detached building.
Inside storage: Store with flammable liquids. Keep separated from
incompatible substances.
Other Precautions:

Respiratory Protection:Under conditions of frequent use or heavy
exposure, respiratory protection may be needed. Respiratory
protection is ranked in order from minimum to maximum. Consider
warning properties before use. Any chemical cartridge respirator
with organic vapor cartridge(s). Any chemical cartridge respirator
with a full facepiece and organic vapor cartridge(s). Any
air-purifying respirator with a full facepiece and an organic vapor
canister. For Unknown Concentrations or Immediately Dangerous to
Life or Health - Any supplied-air respirator with full facepiece
and operated in a pressure-demand or other positive-pressure mode
in combination with a separate escape supply. Any self-contained
breathing apparatus with a full facepiece.
Ventilation:Provide local exhaust ventilation system. Ventilation
equipment should be explosion-resistant if explosive concentrations
of material are present. Ensure compliance with applicable exposure
limits.
Protective Gloves:Wear appropriate chemical resistant gloves.
Eye Protection:Wear splash resistant safety goggles. Provide an
emergency eye wash fountain and quick drench shower in the
immediate work area.
Other Protective Equipment:Wear appropriate chemical resistant
clothing.
Supplemental Safety and Health
2-METHYL BUTYRALDEHYDE: No occupational exposure limits established.

Boiling Pt:198-200 F (92-93.3 C)
Melt/Freeze Pt:Not available
Vapor Pres:Not available
Vapor Density:2.97
Spec Gravity:0.8029
pH:Not available
Evaporation Rate & Reference:Not available
Solubility in Water:insoluble
Appearance and Odor:PHYSICAL STATE:liquid ODOR:Not available
Corrosion Rate:

Stability Indicator/Materials to Avoid:Stable at normal temperatures
and pressure.
Stability Condition to Avoid:Avoid heat, flames, sparks and other
sources of ignition. Containers may rupture or explode if exposed
to heat.
Hazardous Decomposition Products:Thermal decomposition products:
miscellaneous decomposition products Thermal decomposition
products: miscellaneous decomposition products
Conditions to Avoid Polymerization:Will not polymerize.

Waste Disposal Methods:Subject to disposal regulations: U.S. EPA 40 CFR
262. Hazardous Waste Number(s): D001. Dispose in accordance with
all applicable regulations.

Toxicological Information:2-METHYL BUTYRALDEHYDE: IRRITATION DATA: 500
mg open skin-rabbit mild; 500 mg/24 hour(s) eyes-rabbit severe; 500
mg/24 hour(s) eyes-rabbit mild; 100 percent/24 hour(s) skin-guinea
pig moderate TOXICITY DATA: 14000 ppm/4 hour(s) inhalation-rat
LC50; 5730 ul/kg skin-rabbit LD50; 6400 mg/kg oral-rat LD50 LOCAL
EFFECTS: Irritant: inhalation, skin, eye ACUTE TOXICITY LEVEL:
Slightly Toxic: inhalation, dermal absorption, ingestion

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.

Ecological:ECOTOXICITY DATA: FISH TOXICITY: 9970 ug/L 96 hour(s) LC50
(Mortality) Fathead minnow (Pimephales promelas) ENVIRONMENTAL
SUMMARY: Toxic to aquatic life.

Transport Information:U.S. DOT 49 CFR 172.101: PROPER SHIPPING NAME:
Flammable liquids, n.o.s. (2-methyl butyraldehyde) ID NUMBER:
UN1993 HAZARD CLASS OR DIVISION: 3 PACKING GROUP: II LABELING
REQUIREMENTS: Flammable liquid

SARA Title III Information: SARA TITLE III SECTION 302 EXTREMELY
HAZARDOUS SUBSTANCES (40 CFR 355.30): Not regulated. SARA TITLE
III SECTION 304 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355.40): Not
regulated. SARA TITLE III SARA SECTIONS 311/312 HAZARDOUS
CATEGORIES (40 CFR 370.21): ACUTE: Yes CHRONIC: No FIRE: Yes
REACTIVE: No SUDDEN RELEASE: No SARA TITLE III SECTION 313 (40
CFR 372.65): Not regulated.
Federal Regulatory Information:CERCLA SECTIONS 102a/103 HAZARDOUS
SUBSTANCES (40 CFR 302.4): Not regulated. OSHA PROCESS SAFETY
(29CFR1910.119): Not regulated.
State Regulatory Information: California Proposition 65: Not regulated.