1. PRODUCT AND COMPANY IDENTIFICATION
Product name : Carbon monoxide
Chemical formula: CO
Synonyms : Carbon monoxide, Carbonic Oxide, Carbon Oxide
Product Use Description : General Industrial
Company : Special Gas Vietnam JSC
2. COMPOSITION/INFORMATION ON INGREDIENTS
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Components
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CAS Number
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Concentration (Volume)
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Carbon monoxide
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630-08-0
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100 %
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Concentration is nominal. For the exact product composition, please refer to Cryogas Vietnam technical specifications.
3. HAZARDS IDENTIFICATION
Emergency Overview
Toxic by inhalation.
High pressure gas.
Extremely flammable.
May form explosive mixtures in air.
Immediate fire and explosion hazard exists when mixed with air at concentrations exceeding the lower flammability limit (LFL).
Do not breathe gas.
Self contained breathing apparatus (SCBA) may be required.
Potential Health Effects
Inhalation : May be fatal if inhaled.
Ingestion : Ingestion is not considered a potential route of exposure.
Exposure Guidelines
Primary Routes of Entry : Inhalation
Target Organs : Respiratory system, cardiovascular system, central nervous system and blood.
Aggravated Medical Condition
Pre-existing respiratory conditions may be aggravated by over-exposure to Carbon Monoxide. Carbon Monoxide can aggravate some diseases of the cardiovascular system such as coronary artery disease and angina pectoris. Asthma.
Environmental Effects
Dangerous for the environment.
4. FIRST AID MEASURES
General advice : Remove victim to uncontaminated area wearing self contained breathing apparatus. Keep victim warm and rested. Call a doctor. Apply artificial respiration if breathing stopped.
Eye contact: In the case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Skin contact: Wash with water and soap as a precaution.
Ingestion : Ingestion is not considered a potential route of exposure.
Inhalation : In case of shortness of breath, give oxygen. Move to fresh air. Consult a doctor. If breathing has stopped or is labored, give assisted respirations. Supplemental oxygen may be indicated. If the heart has stopped, trained personnel should begin cardiopulmonary resuscitation immediately.
Notes to physician
Treatment : Hyperbaric oxygen is the most efficient treatment of carbon monoxide and dramatically reduces the biological half-life of carboxyhemoglobin. Although less effective, 100% oxygen by mask is useful if hyperbaric facilities are not available. Stimulant drugs are not indicated.
5. FIRE- FIGHTING MEASURES
Suitable extinguishing media : All known extinguishing media can be used.
Specific hazards: If flames are accidentally extinguished, explosive re-ignition may occur; therefore, appropriate measures should be taken (e.g. total evacuation to protect persons from cylinder fragments and toxic fumes should a rupture occur). Upon exposure to intense heat or flame, cylinder will vent rapidly and or rupture violently. Combustion by-products may be toxic. Move away from container and cool with water from a protected position. Keep adjacent cylinders cool by spraying with large amounts of water until the fire burns itself out. If possible, shut off the source of gas and allow the fire to burn itself out. Do not extinguish a leaking gas flame unless absolutely necessary.Spontaneous/explosive re-ignition may occur. Extinguish any other fire. Do not allow run-off from fire fighting to enter drains or water courses. Extinguish fire only if gas flow can be stopped.
Special protective equipment for fire-fighters: Use self-contained breathing apparatus and chemically protective clothing.
6. ACCIDENTAL RELEASE MEASURES
Personal precautions: Evacuate personnel to safe areas. Remove all sources of ignition. Approach suspected leak areas with caution. Never enter a confined space or other area where the flammable gas concentration is greater the 10% of its lower flammable limit. Wear self-contained breathing apparatus when entering area unless atmosphere is proved to be safe. Ventilate the area.
Environmental precautions: Should not be released into the environment. Prevent further leakage or spillage if safe to do so. Prevent from entering sewers, basements and workpits, or any place where its accumulation can be dangerous.
Methods for cleaning up : Ventilate the area. Approach suspected leak areas with caution.
Additional advice : If possible, stop flow of product. Increase ventilation to the release area and monitor concentrations. If leak is from cylinder or cylinder valve, call the emergency telephone number. If the leak is in the user's system, close the cylinder valve, safely vent the pressure, and purge with an inert gas before attempting repairs.
7. HANDLING AND STORAGE
Handling
Protect cylinders from physical damage; do not drag, roll, slide or drop. Do not allow storage area temperature to exceed 50°C (122°F). Only experienced and properly instructed persons should handle compressed gases. Before using the product, determine its identity by reading the label. Know and understand the properties and hazards of the product before use. When doubt exists as to the correct handling procedure for a particular gas, contact the supplier. Do not remove or deface labels provided by the supplier for the identification of the cylinder contents. When moving cylinders, even for short distances, use a cart (trolley, hand truck, etc.) designed to transport cylinders. Leave valve protection caps in place until the container has been secured against either a wall or bench or placed in a container stand and is ready for use. Use an adjustable strap wrench to remove over-tight or rusted caps. Before connecting the container, check the complete gas system for suitability, particularly for pressure rating and materials. Before connecting the container for use, ensure that back feed from the system into the container is prevented. Ensure the complete gas system is compatible for pressure rating and materials of construction. Ensure the complete gas system has been checked for leaks before use. Employ suitable pressure regulating devices on all containers when the gas is being emitted to systems with lower pressure rating than that of the container. Never insert an object (e.g. wrench, screwdriver, pry bar, etc.) into valve cap openings. Doing so may damage valve, causing a leak to occur. Open valve slowly. If user experiences any difficulty operating cylinder valve discontinue use and contact supplier. Close container valve after each use and when empty, even if still connected to equipment. Never attempt to repair or modify container valves or safety relief devices. Damaged valves should be reported immediately to the supplier. Close valve after each use and when empty. Replace outlet caps or plugs and container caps as soon as container is disconnected from equipment. Do not subject containers to abnormal mechanical shocks which may cause damage to their valve or safety devices. Never attempt to lift a cylinder by its valve protection cap or guard. Do not use containers as rollers or supports or for any other purpose than to contain the gas as supplied. Never strike an arc on a compressed gas cylinder or make a cylinder a part of an electrical circuit. Do not smoke while handling product or cylinders. Never re-compress a gas or a gas mixture without first consulting the supplier. Never attempt to transfer gases from one cylinder/container to another. Always use backflow protective device in piping. Purge air from system before introducing gas. Installation of a cross purge assembly between the cylinder and the regulator is recommended. When returning cylinder install valve outlet cap or plug leak tight. Never use direct flame or electrical heating devices to raise the pressure of a container. Containers should not be subjected to temperatures above 50°C (122°F). Prolonged periods of cold temperature below -30°C (-20°F) should be avoided. All piped systems and associated equipment must be grounded.
Storage
Containers should be stored in a purpose build compound which should be well ventilated, preferably in the open air. Full containers should be stored so that oldest stock is used first. Observe all regulations and local requirements regarding storage of containers. Stored containers should be periodically checked for general condition and leakage. Local codes may have special requirements for toxic gas storage. Protect containers stored in the open against rusting and extremes of weather. Containers should not be stored in conditions likely to encourage corrosion. Containers should be stored in the vertical position and properly secured to prevent toppling. The container valves should be tightly closed and where appropriate valve outlets should be capped or plugged. Container valve guards or caps should be in place. Keep containers tightly closed in a cool, wellventilated place. Store containers in location free from fire risk and away from sources of heat and ignition. Full and empty cylinders should be segregated. Do not allow storage temperature to exceed 50°C (122°F). Smoking should be prohibited within storage areas or while handling product or containers. Display "No Smoking or Open Flames" signs in the storage areas. The amounts of flammable or toxic gases in storage should be kept to a minimum. Return empty containers in a timely manner. Flammable storage areas should be separated from oxygen and other oxidizers by a minimum distance of 20 ft. (6.1 m.) or by a barrier of non-combustible material at least 5 ft. (1.5 m.) high, having a fire resistance rating of at least 1/2 hour.
Technical measures/Precautions
Containers should be segregated in the storage area according to the various categories (e.g. flammable, toxic, etc.) and in accordance with local regulations. Provide sufficient air exchange and/or exhaust in work rooms. Keep away from combustible material. All electrical equipment in the storage areas should be compatible with flammable materials stored. Containers containing flammable gases should be stored away from other combustible materials. Where necessary containers containing oxygen and oxidants should be separated from flammable gases by a fire resistant partition.
8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Engineering measures
Handle product only in closed system or provide appropriate exhaust ventilation at machinery. Provide natural or explosion-proof ventilation adequate to ensure concentrations are kept below exposure limits.
Personal protective equipment
Respiratory protection: Keep self contained breathing apparatus readily available for emergency use. Use self-contained breathing apparatus or positive pressure air line with mask and escape pack in areas where concentration is unknown or above the exposure limits. Users of breathing apparatus must be trained.
Hand protection : Sturdy work gloves are recommended for handling cylinders. The breakthrough time of the selected glove(s) must be greater than the intended use period.
Eye protection : Safety glasses recommended when handling cylinders.
Skin and body protection : Flame retardant antistatic protective clothing. Safety shoes are recommended when handling cylinders.
Wear as appropriate:
Flame retardant protective clothing.
Special instructions for protection and hygiene: Provide good ventilation and/or local exhaust to prevent accumulation of concentrations above exposure limits. Ensure adequate ventilation, especially in confined areas.
Exposure limit(s)
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Carbon monoxide
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Recommended exposure limit (REL)
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35 ppm
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40 mg/m3
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Carbon monoxide
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Ceiling Limit Value and Time Period (if specified)
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200 ppm
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229 mg/m3
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Carbon monoxide
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Time Weighted Average (TWA)
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35 ppm
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40 mg/m3
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Carbon monoxide
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Time Weighted Average (TWA) Permissible
Exposure Limit (PEL)
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25 ppm
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29 mg/m3
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9. PHYSICAL AND CHEMICAL PROPERTIES
Form : Compressed gas.
Color: Colorless gas
Odor: No odor warning properties.
Molecular Weight : 28.01 g/mol
Relative vapor density : 0.967 (air = 1)
Relative density : 0.79 (water = 1)
Vapor pressure : Not applicable.
Density : 0.075 lb/ft3 (0.0012 g/cm3) at 70 °F (21 °C)
Note: (as vapor)
Specific Volume : 13.80 ft3/lb (0.8615 m3/kg) at 70 °F (21 °C)
Boiling point/range : -313 °F (-191.5 °C)
Critical temperature : -220 °F (-140.2 °C)
Melting point/range -337 °F (-205.1 °C)
Autoignition temperature : 620 °C
Upper flammability limit : 74 %(V)
Lower flammability limit 12.5 %(V)
Water solubility : 0.030 g/l
10. STABILITY AND REACTIVITY
Stability : Stable under normal conditions. Stable.
Conditions to avoid : Heat, flames and sparks.
Materials to avoid: Iron.
Natural rubber.
Neoprene.
Nickel.
Oxygen.
Oxidizing agents.
11. TOXICOLOGICAL INFORMATION
Acute Health Hazard
Ingestion : No data is available on the product itself.
Inhalation : LC50 (1 h) : 3760 ppm
Species : Rat.
Skin. : No data is available on the product itself.
12. ECOLOGICAL INFORMATION
Ecotoxicity effects
Aquatic toxicity : Carbon Monoxide is known to be harmful to aquatic life in very low
concentrations.
Toxicity to other organisms : No data available.
Persistence and degradability
Mobility : Carbon Monoxide will not be mobile in the environment.
Bioaccumulation: Does not bioaccumulate.
Further information
This product has no known eco-toxicological effects.
13. DISPOSAL CONSIDERATIONS
Waste from residues / unused
Products: In accordance with local and national regulations. Contact supplier if guidance is required. Return unused product in orginal cylinder to supplier. Must not be discharged to atmosphere.
Contaminated packaging: Return cylinder to supplier.
14. TRANSPORT INFORMATION
CFR
Proper shipping name : Carbon monoxide, compressed
Class: 2.3 (2.1)
UN/ID No. : UN1016
IATA
Proper shipping name : Carbon monoxide, compressed
Class : 2.3 (2.1)
UN/ID No. : UN1016
IMDG
Proper shipping name : CARBON MONOXIDE, COMPRESSED
Class : 2.3 (2.1)
UN/ID No. : UN1016
CTC
Proper shipping name : CARBON MONOXIDE, COMPRESSED
Class : 2.3 (2.1)
UN/ID No. : UN1016
Further Information
Avoid transport on vehicles where the load space is not separated from the driver's compartment. Ensure vehicle driver is aware of the potential hazards of the load and knows what to do in the event of an accident or an emergency.
15. REGULATORY INFORMATION
OSHA Hazard Communication Standard (29 CFR 1910.1200) Hazard Class(es)
Toxic. Flammable. Compressed Gas.
WARNING! This product contains a chemical known to cause birth defects or other reproductive harm.
Carbon monoxide
16. OTHER INFORMATION
NFPA Rating
Health : 2
Fire : 4
Instability : 0
HMIS Rating
Health: 1
Flammability : 4
Physical hazard : 3