NTP CHEMICAL REPOSITORY (RADIAN CORPORATION, AUGUST 29, 1991)
IDENTIFIERS
CATALOG ID NUMBER: 002080
CAS NUMBER: 110-62-3
BASE CHEMICAL NAME: PENTANAL,N-
PRIMARY NAME: N-PENTANAL
CHEMICAL FORMULA: C5H10O
STRUCTURAL FORMULA: CH3(CH2)3CHO
WLN: Not available
SYNONYMS:
VALERALDEHYDE
AMYL ALDEHYDE
BUTYL FORMAL
PENTANAL
VALERIANIC ALDEHYDE
VALERIC ALDEHYDE
VALERAL
N-VALERALDEHYDE
VALERYLALDEHYDE
VALERIC ACID ALDEHYDE
n-VALERIC ALDEHYDE
UN 2058
PHYSICAL CHEMICAL DATA
PHYSICAL DESCRIPTION: LITERATURE: Colorless liquid
REPOSITORY: Clear colorless liquid
MOLECULAR WEIGHT: 86.14
SPECIFIC GRAVITY: 0.8095 @ 20/4 C [017,062]
DENSITY: 0.818 g/mL @ 11 C [055]
MP (DEG C): -91.5 C [017,421]
BP (DEG C): 102-103 C [031,062,421]
SOLUBILITIES:
WATER : <1 mg/mL @ 20 C (RAD)
DMSO : >=100 mg/mL @ 20 C (RAD)
95% ETHANOL : >=100 mg/mL @ 20 C (RAD)
METHANOL : Not available
ACETONE : >=100 mg/mL @ 20 C (RAD)
TOLUENE : Not available
OTHER SOLVENTS:
Ether: Soluble [017,062]
VOLATILITY:
Vapor pressure: 50 mm Hg @ 25 C [055]
Vapor density : 3.0 [055]
FLAMMABILITY(FLASH POINT):
This chemical has a flash point of 12 C (53.6 F) [025,042,062]. It is flam-
mable. Fires involving this material can be controlled with a dry chemical,
carbon dioxide or Halon extinguisher.
UEL: Not available LEL: Not available
REACTIVITY:
This material is incompatible with oxidizing agents, strong bases and
strong reducing agents [269].
STABILITY:
This chemical may be sensitive to prolonged exposure to air. Solutions of
this chemical in water, DMSO, 95% ethanol or acetone should be stable for
24 hours under normal lab conditions (RAD).
OTHER PHYSICAL DATA:
Refractive index: 1.3944 @ 20 C
A fruity odor
Burning rate: 1.9 mm/min
Critical temperature: 281 C
Critical pressure: 514 psia
Ratio of specific heats of vapor: 1.072
Latent heat of vaporization: 93 cal/g
Heat of combustion: -8,610 cal/g
TOXICITY
NIOSH REGISTRY NUMBER: YV3600000
TOXICITY:
typ. dose mode specie amount units other
LD50 orl rat 3200 mg/kg
LCLo ihl rat 4000 ppm/4H
LD50 orl mus 6400 mg/kg
LD50 skn rbt 4857 mg/kg
LD50 skn gpg 20 gm/kg
AQTX/TLM96: 1000-100 ppm
SAX TOXICITY EVALUATION:
THR = MODERATE via oral route. LOW via dermal route. A mild irritant.
CARCINOGENICITY: Not available
MUTATION DATA:
test lowest dose | test lowest dose
----------- ----------------- | ---------- -----------------
Not available |
TERATOGENICITY:
Reproductive Effects Data: Not available
STANDARDS, REGULATIONS & RECOMMENDATIONS:
OSHA: Federal Register (1/19/89)
Final Limit: PEL-TWA 50 ppm [610]
ACGIH: TLV-TWA 50 ppm [015,610]
NIOSH Criteria Document: None
NFPA Hazard Rating: Health (H): 1
Flammability (F): 3
Reactivity (R): 0
H1: Materials only slightly hazardous to health (see NFPA for details).
F3: Materials which can be ignited under almost all normal temperature
conditions (see NFPA for details).
R0: Materials which are normally stable even under fire exposure conditions
and which are not reactive with water (see NFPA for details).
OTHER TOXICITY DATA:
Skin and Eye Irritation Data:
skn-rbt 500 mg/24H MOD
eye-rbt 100 mg/24H SEV
skn-gpg 100% SEV
Standards and Regulations: DOT-IMO: Flammable liquid; Label: Flammable liquid
Status: Reported in EPA TSCA Inventory, 1983
OTHER DATA (Regulatory)
PROPER SHIPPING NAME (IATA): Valeraldehyde
UN/ID NUMBER: UN2058
HAZARD CLASS: 3 SUBSIDIARY RISK: None PACKING GROUP: II
LABELS REQUIRED: Flammable liquid
PACKAGING: PASSENGER: PKG. INSTR.: 305, Y305 MAXIMUM QUANTITY: 5 L, 1 L
CARGO : PKG. INSTR.: 307 MAXIMUM QUANTITY: 60 L
SPECIAL PROVISIONS: None
USES:
This compound is found in olive oil, certain foodstuffs and manure. Also
used in flavoring compounds, resin chemistry and rubber accelerators.
COMMENTS: Not available
HANDLING PROCEDURES
ACUTE/CHRONIC HAZARDS:
When heated to decomposition this compound emits acrid smoke and fumes [042].
It may be harmful by inhalation, ingestion or skin absorption. The vapor or
mist may be irritatting to the eyes, mucous membranes and upper respiratory
tract [269].
MINIMUM PROTECTIVE CLOTHING: Not available
RECOMMENDED GLOVE MATERIALS:
GlovES Expert System Recommended Gloves For Use With Neat (Undiluted) Chemical:
This chemical has not been tested for permeation by Radian Corporation;
however, the GlovES expert system was used to extrapolate permeation test
information from compounds in the same chemical class and the following
recommendation(s) are provided. The GlovES system uses permeation data from
literature sources; therefore, extra safety margins should be used with the
recommended exposure times. If this chemical comes into contact with your
glove, or if a tear, puncture or hole develops, remove them at once.
Suggested Glove Type Model Number Thickness Estimated Breakthrough
Butyl Rubber North B-174 0.66 mm 480 min.
RECOMMENDED RESPIRATOR:
Where the neat test chemical is weighed and diluted, wear a NIOSH-
approved half face respirator equipped with an organic vapor/acid gas
cartridge (specific for organic vapors, HCl, acid gas and SO2) with a
dust/mist filter.
Splash proof safety goggles should be worn while handling this
chemical. Alternatively, a full face respirator, equipped as above,
may be used to provide simultaneous eye and respiratory protection.
OTHER: Not available
STORAGE PRECAUTIONS:
You should keep this material in a tightly closed container
under an inert atmosphere, and store it at refrigerated temperatures.
STORE AWAY FROM SOURCES OF IGNITION.
SPILLS AND LEAKAGE:
If you spill this chemical, FIRST REMOVE ALL SOURCES OF IGNITION. Then,
use absorbent paper to pick up all liquid spill material. Your contaminated
clothing and absorbent paper should be sealed in a vapor-tight plastic bag for
eventual disposal. Solvent wash all contaminated surfaces with 60-70% ethanol
followed by washing with a soap and water solution. Do not reenter the
contaminated area until the Safety Officer (or other responsible person) has
verified that the area has been properly cleaned.
DISPOSAL AND WASTE TREATMENT: Not available
EMERGENCY PROCEDURES
SKIN CONTACT:
IMMEDIATELY flood affected skin with water while removing and isolating
all contaminated clothing. Gently wash all affected skin areas thoroughly
with soap and water.
If symptoms such as redness or irritation develop, IMMEDIATELY call a
physician and be prepared to transport the victim to a hospital for treatment.
INHALATION:
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air.
If symptoms (such as wheezing, coughing, shortness of breath, or burning in
the mouth, throat, or chest) develop, call a physician and be prepared to
transport the victim to a hospital.
Provide proper respiratory protection to rescuers entering an unknown
atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA)
should be used; if not available, use a level of protection greater than or
equal to that advised under Respirator Recommendation.
EYE CONTACT:
First check the victim for contact lenses and remove if present. Flush
victim's eyes with water or normal saline solution for 20 to 30 minutes while
simultaneously calling a hospital or poison control center.
Do not put any ointments, oils, or medication in the victim's eyes without
specific instructions from a physician.
IMMEDIATELY transport the victim after flushing eyes to a hospital even if
no symptoms (such as redness or irritation) develop.
INGESTION:
DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing,
give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a
hospital or poison control center. Be prepared to transport the victim to a
hospital if advised by a physician.
If the victim is convulsing or unconscious, do not give anything by mouth,
ensure that the victim's airway is open and lay the victim on his/her side with
the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport
the victim to a hospital.
SYMPTOMS:
Exposure to vapors of this compound may cause irritation to the eyes, and may
also cause temporary upper respiratory irritation if present in high concen-
trations [371]. Exposure to the liquid also causes eye and skin irritation
[269,371]. If the liquid is spilled on clothing and allowed to remain, it may
cause smarting and reddening of the skin [371].
SOURCES
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Not listed.
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