Specific target organ toxicity – single exposure, Category 3
H270 May cause or intensify fire; oxidizer
H280 Contains gas under pressure; may explode if heated
H336 May cause drowsiness or dizziness
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P319 Get medical help if you feel unwell.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
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Fresh air, rest. Refer for medical attention.
ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth with water. Do not induce vomiting. Never give anything by mouth to an unconscious person. Call a doctor or Poison Control Center immediately.
Inhalation causes intense analgesia; concentrations of over 40-60% cause loss of consciousness preceded by hysteria. Contact of liquid with eyes or skin causes frostbite burn. (USCG, 1999)
Excerpt from ERG Guide 122 [Gases - Oxidizing (Including Refrigerated Liquids)]: Vapors may cause dizziness or asphyxiation without warning. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire may produce irritating and/or toxic gases. (ERG, 2016)
Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. Nitrogen Oxides (NOx) and Related Compounds
Suitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Behavior in Fire: Will support combustion, and may increase intensity of fire. Containers may explode when heated. (USCG, 1999)
Excerpt from ERG Guide 122 [Gases - Oxidizing (Including Refrigerated Liquids)]: Substance does not burn but will support combustion. Some may react explosively with fuels. May ignite combustibles (wood, paper, oil, clothing, etc.). Vapors from liquefied gas are initially heavier than air and spread along ground. Runoff may create fire or explosion hazard. Containers may explode when heated. Ruptured cylinders may rocket. (ERG, 2016)
In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position.
Evacuate danger area! Consult an expert! Personal protection: self-contained breathing apparatus. Ventilation. NEVER direct water jet on liquid. If liquid: do NOT absorb in saw-dust or other combustible components.
Evacuate danger area! Consult an expert! Personal protection: self-contained breathing apparatus. Ventilation. NEVER direct water jet on liquid. If liquid: do NOT absorb in saw-dust or other combustible components.
ACCIDENTAL RELEASE MEASURES: Personal precautions, protective equipment and emergency procedures: Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas; Environmental precautions: Prevent further leakage or spillage if safe to do so. Do not let product enter drains; Methods and materials for containment and cleaning up: Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and place in container for disposal according to local regulations.
NO contact with combustible substances. Closed system, ventilation, explosion-proof electrical equipment and lighting. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Fireproof if in building. Separated from reducing agents and combustible substances. Cool.Keep container tightly closed in a dry and well-ventilated place. Contents under pressure.
TLV: 50 ppm as TWA; A4 (not classifiable as a human carcinogen).MAK: 180 mg/m3, 100 ppm; peak limitation category: II(2); pregnancy risk group: C
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Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Wear safety goggles or eye protection in combination with breathing protection.
Cold-insulating gloves.
Use ventilation. Use local exhaust or breathing protection.
no data available
Nitrous oxide is a colorless, sweet-tasting gas. It is also known as "laughing gas". Continued breathing of the vapors may impair the decision making process. It is noncombustible but it will accelerate the burning of combustible material in a fire. It is soluble in water. Its vapors are heavier than air. Exposure of the container to prolonged heat or fire can cause it to rupture violently and rocket. It is used as an anesthetic, in pressure packaging, and to manufacture other chemicals.
Colorless gas [Note: Shipped as a liquified compressed gas]
Slightly sweetish
-91°C(lit.)
?88°C(lit.)
Nonflammable Gas, but supports combustion at elevated temperatures.
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0.0145 cP at 25 deg C at 101.325 KPa (gas)
0.1 % at 77° F (NIOSH, 2016)
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51.7 mm Hg ( 21 °C)
1.46 g/cm3
1.53 (15 °C, vs air)
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The substance is a strong oxidant above 300°C. It reacts violently with reducing agents and some combustible substances. This generates fire and explosion hazard.
Stable under recommended storage conditions.
Spontaneous ignition occurs when nitrous oxide and lithium hydride or hydrazine are mixed.The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen.NITROUS OXIDE is a weak oxidizing agent. Nonflammable but supports combustion. Can explode at high temperature (after vaporization). Vapors can undergo a violent reaction with aluminum, boron, hydrazine, lithium hydride, phenyllithium, phosphine, sodium, tungsten carbide [Bretherick, 5th ed., 1995, p. 1686]. Contact of the cold liquefied gas with water may result in vigorous or violent boiling. If the water is hot, a liquid "superheat" explosion may occur. Pressures may build to dangerous levels if liquefied gas contacts water in a closed container [Handling Chemicals Safely 1980].
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Incompatible materials: Aluminum, Borane/boron oxides, Hydrazine, Strong reducing agents
This compound decomposes explosively at high temperatures.
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A4; Not classifiable as a human carcinogen.
no data available
The liquid may cause frostbite. The substance may cause effects on the central nervous system. This may result in lowering of consciousness.
The substance may have effects on the bone marrow and nervous system. May cause reproductive toxicity in humans.
A harmful concentration of this gas in the air will be reached very quickly on loss of containment.
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The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
ADR/RID: UN2201 (For reference only, please check.)
IMDG: UN2201 (For reference only, please check.)
IATA: UN2201 (For reference only, please check.)
ADR/RID: NITROUS OXIDE, REFRIGERATED LIQUID (For reference only, please check.)
IMDG: NITROUS OXIDE, REFRIGERATED LIQUID (For reference only, please check.)
IATA: NITROUS OXIDE, REFRIGERATED LIQUID (For reference only, please check.)
ADR/RID: 2.2 (For reference only, please check.)
IMDG: 2.2 (For reference only, please check.)
IATA: 2.2 (For reference only, please check.)
ADR/RID: (For reference only, please check.)
IMDG: (For reference only, please check.)
IATA: (For reference only, please check.)
ADR/RID: No
IMDG: No
IATA: No
no data available
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Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.Other UN number: 2201 Nitrous oxide, refrigerated liquid.