Tel: 514-956-7503
Fax: 514-956-7504
Internet: www.megs.ca
Email : support@megs.ca
Montreal St-Laurent Tel : 514-956-7503 Fax : 514-956-7504
Ottawa Nepean Tel : 613-226-4228 Fax : 613-226-4229
Quebec Quebec Tel : 418-834-7447 Fax : 418-834-3774
MSDS: Nitrogen Dioxide
PRODUCT INFORMATION
PRODUCT: Nitrogen Dioxide
TRADE NAME: Nitrogen Dioxide; Nitrogen Tetroxide
CHEMICAL NAME: Nitrogen Dioxide
SYNONYMS: Nitrogen Peroxide; Nitrogen Dioxide,
Liquid
FORMULA: NO2; N2O4
CHEMICAL FAMILY: Oxide of Nitrogen
SUPPLIER'S NAME: MEGS Inc.
SUPPLIER'S ADDRESS: 2675 De Miniac
Ville St-Laurent, Qc, H4S 1E5
EMERGENCY PHONE NUMBER: (514) 956-7503
MOLECULAR WEIGHT: 46.01
PRODUCT USE: Various
PRODUCT IDENTIFICATION NA 1067
NUMBER:
HAZARDOUS INGREDIENTS
CHEMICAL ID CONCENTRATION CAS # LD(50) LC(50)
100%
Nitrogen Dioxide 10102-44-0 None Ihl-Hmn
200 ppm/1 min
published
PHYSICAL DATA
PHYSICAL STATE: Liquid
APPEARANCE: Yellow-brown liquid; vapor is
reddish-brown
ODOR: Suffocating odor.
ODOR THRESHOLD: Unknown
SPECIFIC GRAVITY (H 2O = 1): 1.44
VAPOR PRESSURE: 78 kPa @ 15掳C
VAPOR DENSITY (air = 1): 2.83
EVAPORATION RATE: Unknown
BOILING POINT: 21.1掳C
FREEZING POINT: -11.20掳C
pH: Unknown
GAS DENSITY: 2.63 kg/m鲁 @ 15掳C, 101.3 kPa
COEFFICIENT OF WATER/OIL In water decomposes to nitric and
DISTRIBUTION: nitrous acids.
FIRE OR EXPLOSION HAZARD
CONDITIONS OF FLAMMABILITY: Nonflammable
MEANS OF EXTINCTION: Nonflammable
FLASHPOINT AND METHOD OF Nonflammable
DETERMINATION:
UPPER EXPLOSION LIMIT (% BY VOL): Nonflammable
LOWER EXPLOSION LIMIT (% BY VOL): Nonflammable
AUTO-IGNITION TEMPERATURE: Nonflammable
FLAMMABILITY CLASSIFICATION: Nonflammable
HAZARDOUS COMBUSTION Nonflammable
PRODUCTS:
EXPLOSION DATA: Nonflammable
SENSITIVITY TO STATIC DISCHARGE: None
REACTIVITY DATA
CHEMICAL STABILITY: Exists as an equilibrium mixture of
NO2 and N2O4.
INCOMPATIBLE MATERIALS: Violent reaction in the presence of
flourine formaldehyde, petroleum
and alcohols and arylhydrocarbons
CONDITIONS OF REACTIVITY: See above
HAZARDOUS DECOMPOSITION NOx fumes.
PRODUCTS:
TOXICOLOGICAL PROPERTIES
ROUTES OF ENTRY:
SKIN CONTACT: Contact with liquid causes a severe corrosive action on the
skin or eyes.
SKIN ABSORPTION: Unknown
EYE: See Skin Contact, above
INHALATION: Vapors are a strong irritant to the pulmonary tract. Initial
symptoms of inhalation may be moderate and include irritation of the eyes and
throat, tightness of the chest, headache, nausea and gradual loss of strength.
Severe symptoms may be delayed (possibly for 5 to 7 hours) and include
cyanosis, increased difficulty in breathing, irregular respiration, lassitude and
possible eventual death due to pulmonary edema in untreated cases.
INGESTION: None
ACUTE OVER EXPOSURE EFFECTS: The vapor is highly toxic and hazardous
because of its ability to cause delayed chemical pneumonitis and pulmonary
edema. The absence of market acute irritation of nitrogen dioxide limits its
warming properties. Contact with the liquid cause a corrosive or chemical etching
action on the skin or eyes.
CHRONIC OVER EXPOSURE EFFECTS: Chronic or repeated exposure may
cause a permanent decrease in pulmonary function (silo filler's disease).
EXPOSURE LIMITS: TWA = 3 molar ppm; STEL = 5 molar ppm (ACGIH 1995-
1996)
IRRITANCY OF PRODUCT: See above
SENSITIZATION TO MATERIAL: None known
CARCINOGENICITY, REPRODUCTIVE EFFECTS: None known
TERATOGENICITY, MUTAGENICITY: Mus-rat-ihl - 15 - ppm/3 h continuous
TOXICOLOGICALLY SYNERGISTIC PRODUCTS: None known
PREVENTIVE MEASURES
PERSONAL PROTECTIVE EQUIPMENT: Rubber or Teflon庐 gloves. Safety
goggles or safety glasses, face shield. Safety shoes, safety shower, eyewash
"fountain". Protective apron.
SPECIFIC ENGINEERING CONTROLS: Anhydrous nitrogen dioxide is
noncorrosive to most metals at normal temperatures. It does corrode copper and
its alloys. Teflon庐 is the preferred gasket material.
LEAK AND SPILL PROCEDURES: EVACUATE ALL PERSONNEL FROM
AFFECTED AREA.
Use appropriate protective equipment. If leak is in user's equipment, be certain to
purge piping with an inert gas prior to attempting repairs. If leak is on container or
container valve, contact the closest MEGS location.
WASTE DISPOSAL: Do not attempt to dispose of waste or unused quantities.
Return in the shipping container properly labeled, with any valve outlet plugs or
caps secured and valve protection cap in place to MEGS for proper disposal. For
emergency disposal, contact the closest MEGS location.
HANDLING PROCEDURES AND EQUIPMENT: USE ONLY IN WELL-
VENTILATED AREAS.
Valve protection caps must remain in place unless container is secured with
valve outlet piped to the point of use. Do not drag, slide or roll cylinders. Use a
suitable hand truck for cylinder movement. Do not heat cylinder by any means to
increase the discharge rate of product from the cylinder. Use a check valve or
trap in the discharge line to prevent hazardous back flow into the cylinder. Do not
tamper with (valve) safety device. Close valve after each use and when empty.
STORAGE REQUIREMENTS: Protect cylinders from physical damage. Store in
cool, dry, well-ventilated area of non combustible construction away from heavily
trafficked areas and emergency exits. Do not allow the temperature where
cylinders are stored to exceed 52掳C. Cylinders must be stored upright and firmly
secured to prevent falling or being knocked over. Full and empty cylinders should
be segregated. Use a "first in - first out" inventory system to prevent full cylinders
being stored for excessive periods of time.
TDG CLASSIFICATION: 2.3 (5.1)
WHMIS CLASSIFICATION: A, C, D1, E
SPECIAL SHIPPING INFORMATION: Always ship and use cylinders in an
upright position.
FIRST AID MEASURES
SPECIFIC FIRST AID PROCEDURES: PROMPT MEDICAL ATTENTION IS
MANDATORY IN ALL CASES OF OVEREXPOSURE TO NITROGEN DIOXIDE.
RESCUE PERSONNEL SHOULD BE EQUIPPED WITH SELF-CONTAINED
BREATHING APPARATUS AND WEAR PROTECTIVE CLOTHING AND
BOOTS IF THE LIQUID HAS SPILLED OR IS BEING DISCHARGED.
INHALATION: Conscious persons should be carried (not assisted) to an
uncontaminated area breath fresh air supplement with oxygen. Keep the patient
warm, quiet, and under competent medical observation until the danger of the
delayed pulmonary edema has passed (at least 72 hours). Any physical exertion
during this period should be discouraged as it may increase the severity of the
pulmonary edema or chemical pneumonitis. Bed rest is indicated. Unconscious
persons should be moved to an uncontaminated area, given assisted
resuscitation and supplemental oxygen. Once respiration has been restored they
should be treated as above.
EYE CONTACT: PERSONS WITH POTENTIAL EXPOSURE TO NITROGEN
DIOXIDE SHOULD NOT WEAR CONTACT LENSES.
Flush contaminated eye(s) with copious quantities of water. Part eyelids with
finger to assure complete flushing. Continue for mininmum of 15 minutes.
SKIN CONTACT: Flush affected area with copious quantities of water. Remove
affected clothing as rapidly as possible. Subsequently treat as for a thermal burn.
PREPARATION INFORMATION
PREPARED BY: Safety Department
DATE PREPARED: 01/01/1999
LAST REVISION DATE: 05/21/2002
THE INFORMATION, RECOMMENDATIONS AND DATA CONTAINED IN THIS
DOCUMENT ARE INTENDED TO BE USED BY PROPERLY TRAINED AND
QUALIFIED PERSONNEL ONLY AND AT THEIR SOLE RISKS AND
DISCRETION. THE INFORMATION, RECOMMENDATIONS AND DATA
HEREIN CONTAINED ARE DERIVED FROM SOURCES WHICH WE BELIEVE
TO BE RELIABLE. HOWEVER, MEGS INC. MAKES NO REPRESENTATION
AND GIVES NO WARRANTY OF ANY KIND WHATSOEVER WITH RESPECT
TO THEIR ACCURACY OR COMPLETENESS AND ASSUMES NO LIABILITY
FOR DAMAGES OR LOSS ARISING DIRECTLY OR INDIRECTLY FROM
THEIR USE, WHETHER PROPER OR IMPROPER.
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