Digas.com.sa

Page Number
MATERIAL SAFETY DATA SHEET
Date: 28/10/2008
MSDS V1.0
Liquid Oxygen
1 IDENTIFICATION OF THE SUBSTANCE / PREPARATION AND OF THE COMPANY / UNDERTAKING
Trade Name
Chemical Formula
Chemical Family
Company Identification
: Aldakheel Industrial Gases Plant (DIGAS) Emergency Phone Number
2 COMPOSITION / INFORMATION ON INGREDIENTS
COMPONENT
CONCENTRATION
*The symbol > means "greater than" 3 HAZARDS IDENTIFICATION
Emergency Overview
: WARNING! Extremely cold, oxidizing liquid and gas under pressure. Vigorously
accelerates combustion. Combustibles in contact with liquid may explode on ignition orimpact. May cause dizziness and drowsiness. Self-contained breathing apparatus andprotective clothing may be required by rescue workers. Can cause sever frostbite.
Effects of a Single (Acute)
Overexposure
-Inhalation
: Breathing 80% or more oxygen at atmospheric pressure for more than a few hours may cause nasal stuffiness, cough, sore throat, chest pain and breathing difficulty. Breathingoxygen at higher pressure increases the likelihood of adverse effects within a shorter timeperiod. Breathing pure oxygen under pressure may cause lung damage and also centralnervous system effects resulting in dizziness, poor coordination, tingling sensation, visualand hearing disturbances, muscular twitching, unconsciousness and convulsions.
Breathing of oxygen under pressure may cause prolongation of adaptation to darkness andreduced peripheral vision.
Skin Contact
: No harm expected from vapour. Liquid may cause frostbite.
Skin Absorption
: No harm expected from vapour. Liquid may cause frostbite.
Swallowing
: This product is a gas at normal temperature and pressure. An unlikely route of exposure, but frostbite of the lips and mouth may result from contact with the liquid.
Eye Contact
: No harm expected from vapour. Liquid may cause frostbite.
Effects of Repeated (Chronic)
: No evidence of adverse effects from available information.
Overexposure
Other Effects of Overexposure
: See "Notes to Physician", in the "First Aid" section.
Medical Conditions Aggravated by
Overexposure
Aldakheel Industrial Gases Plant
Medina K.S.A.
Page Number
MATERIAL SAFETY DATA SHEET
Date: 28/10/2008
MSDS V1.0
Liquid Oxygen
3 HAZARDS IDENTIFICATION (Continued)
Significant Laboratory Data With
Possible Relevance to Human Health
Hazard Evaluation
4 FIRST AID MEASURES
Inhalation
: If inhaled, remove to fresh air. If not breathing, give artificial respiration. Get medical attention. Keep patient warm and at rest.
Skin contact
: Immediately warm frostbite area with warm water (not to exceed 40°C). In case of massive exposure, remove clothing and shoes while showering with warm water. Get medicalattention immediately. Swallowing
: This product is a gas at normal temperature and pressure.
Eye Contact
: See a physician, preferably an ophthalmologist, immediately.
Notes to Physician
: Supportive treatment should include immediate sedation, anti-convulsive therapy if needed, and rest. Animal studies suggest that the Administration of certain drugs,including phenothiazine drugs and chloroquine, increase the susceptibility to toxicity fromoxygen at high concentrations or pressures. Animal studies also indicate that vitamin Edeficiency may increase susceptibility to oxygen toxicity. Airway obstruction during highoxygen tension may cause alveolar collapse following absorption of the oxygen. Similarly,occlusion of the eustachian tubes may cause retraction of the eardrum and obstruction ofthe paranasal sinuses may produce “vacuum-type” headache. Newborn premature infantsexposed to high oxygen concentrations may suffer delayed retinal damage, which canprogress, to retinal detachment and blindness (retrolental fibroplasia). Retinal damage canalso occur in adults exposed to 100% oxygen under greater that atmospheric pressure,particularly in individuals whose retinal circulation has been previously compromised.
5 FIRE-FIGHTING MEASURES
Flammable class
Extinguishing media
Suitable extinguishing media
: All known extinguishants can be used.
Hazardous combustion products
Specific physical and chemical
: Oxidizing agent, vigorously accelerates combustion. Contact with flammable materials may cause fire or explosion. Closed container may rupture due to heat of fire. Liquid will freeze water rapidly. Containers are provided with pressure relief devices that are designed tovent the contents when they are exposed to elevated temperatures. Do not walk on or rollequipment over spill as this could cause explosion. Liquid causes cryogenic "burns”(frostbite-like injury). Smoking, flames, and electric sparks in the presence of enrichedoxygen atmospheres are potential explosion hazards.
Specific methods
: If possible, stop flow of product. Move away from the container and cool with water from a protected position. If leaking do not spray water onto container. Water surrounding area(from protected position) to contain fire.
Sensitivity to Impact
Sensitivity to Static Discharge
Protective equipment and precautions
: Firefighters should wear self-contained breathing apparatus and full fire-fighting turnout for firefighters
Aldakheel Industrial Gases Plant
Medina K.S.A.
Page Number
MATERIAL SAFETY DATA SHEET
Date: 28/10/2008
MSDS V1.0
Liquid Oxygen
6 ACCIDENTAL RELEASE MEASURES
nal precautions
: Evacuate area. Ensure adequate air ventilation. Eliminate ignition sources. Use protective Environmental precautions
: Try to stop release. Prevent from entering sewers, basements and workpits, or any place where its accumulation can be dangerous.
Clean up methods
: Ventilate area. Keep area evacuated and free from ignition sources until any spilled liquid has evaporated. (Ground free from frost).
7 HANDLING AND STORAGE
Precautions to be taken in handling
: Use piping and equipment adequately designed to withstand pressures to be encountered.
Ground all equipment. Store and use with adequate ventilation at Store and use withadequate ventilation at all times. Use only in a closed system.
Precautions to be taken in storage
: Extremely cold oxidizing liquid and gas. Vigorously accelerates combustion. Contact with liquid or cold gas causes severe frostbite. Combustibles with liquid air may explode onignition or contact. Keep oil, grease, and combustibles away. Use only with equipmentconditioned for oxygen service. Use piping and equipment adequately designed towithstand the pressures and temperatures to be encountered. Do not get liquid in eyes, onskin or clothing. Store and use with adequate ventilation. Close valve when not in use andwhen empty. Clothing exposed to liquid air should be removed immediately and aired outto reduce the likelihood of an engulfing fire. Ignition sources, such as static electricitygenerated in clothing by walking, etc., should be prevented. Protect container againstphysical damage. Isolate from combustible gas installations and combustible materials byadequate distance or by gas-tight, fire resistive barriers.
8 EXPOSURE CONTROLS / PERSONAL PROTECTION
Engineering controls
: Use a local exhaust system, if necessary, to prevent increased oxygen concentration in the Local exhaust
Mechanical (General)
: Use a local exhaust system, if necessary, to prevent increased oxygen concentration in the Personal protection
Respiratory Protection
: None required under normal use. However, air-supplied respirators are required while working in confined spaces with this product.
Skin Protection
Eye Protection
: Wear safety glasses when handling cylinders.
: Metatarsal shoes for cylinder handling. Protective clothing where needed. Cuffless trousers Other Protective Equipment
9 PHYSICAL AND CHEMICAL PROPERTIES
Appearance
Physical State
Boiling Point
Aldakheel Industrial Gases Plant
Medina K.S.A.
Page Number
MATERIAL SAFETY DATA SHEET
Date: 28/10/2008
MSDS V1.0
Liquid Oxygen
9 PHYSICAL AND CHEMICAL PROPERTIES (Continued)
Freezing Point
Evaporation Rate
Vapor Pressure
Vapor Density
Specific Gravity Liquid (Water =1)
Specific Gravity Vapor (Air = 1)
Solubility In Water
Coefficient of water/oil distribution
% Volatiles by Volume
Molecular Weight
Molecular Formula
10 STABILITY AND REACTIVITY
Stability
Conditions of Chemical Instability
: Elevated temperatures. Oxygen reacts with many materials.
Incompatiblity (materials to avoid)
: Flammable materials, hydrocarbons such as oils and grease, ashphalt, ethers, alcohols, Hazardous Decomposition Products
Hazardous Polymerization
Conditions to Avoid
Conditions of Reactivity
11 TOXICOLOGICAL INFORMATION
Study Results
: At atmospheric concentration and pressure, oxygen poses no toxicity hazards. At high concentrations, newborn premature infants may suffer delayed retinal damage (retrolentalfibroplasia) that can progress to retinal detachment and blindness. Retinal damage mayalso occur in adults exposed to 100% oxygen for extended periods (24 to 48 hours) or atgreater than atmospheric pressure, particularly in individuals whose retinal circulation hasbeen previously compromised. All individuals exposed for long periods to oxygen at highpressure and all who exhibit overt oxygen toxicity should have ophthalmologicexaminations. At two or more atmospheres, toxicity to the Central Nervous System (CNS)occurs. Symptoms include nausea, vomiting, dizziness or vertigo, muscle twitching, visiondizziness or vertigo, muscle twitching, vision changes, and loss consciousness andgeneralized seizures. At three atmospheres, CNS toxicity occurs in less than two hours; atsix atmospheres, in only a few minutes. Patients with chronic obstructive pulmonarydisease retain carbon dioxide abnormally. If oxygen is administered, raising their bloodoxygen concentration, their breathing becomes depressed and retained carbon dioxiderises to a dangerous level. Animal studies suggest that the administration of certain drugs,including phenothiazine drugs and chloroquine, increases the susceptibility to toxicity fromoxygen at high concentrations or pressures. Animal studies also indicate that vitamin Edeficiency may increase susceptibility to oxygen toxicity. Airway obstruction during highoxygen tension may cause alveolar collapse following absorption of the oxygen. Similarly,occlusion of the eustachians tubes may cause retraction of the eardrum and obstruction ofthe paranasal sinuses may produce vacuum-type headache.
12 ECOLOGICAL INFORMATION
Ecological Effects Information
: No adverse ecological effects expected. This product does not contain any Class I or Aldakheel Industrial Gases Plant
Medina K.S.A.
Page Number
MATERIAL SAFETY DATA SHEET
Date: 28/10/2008
MSDS V1.0
Liquid Oxygen
13 DISPOSAL CONSIDERATION
Waste Disposal Method
: Do not attempt to dispose of residual or unused quantities. Return cylinder to DIGAS.
14 TRANSPORT INFORMATION
Transport Information
: Avoid transport on vehicles where the load space is not separated from the driver's : 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.
: Before transporting product containers : - Ensure that containers are firmly secured.
- Ensure cylinder valve is closed and not leaking.
- Ensure valve outlet cap nut or plug (where provided) is correctly fitted.
- Ensure valve protection device (where provided) is correctly fitted.
- Ensure there is adequate ventilation.
- Compliance with applicable regulations.
15 OTHER INFORMATION
May cause frostbite.
Ensure all national/local regulations are observed.
Ensure operators understand the hazard of oxygen enrichment.
Mixtures. When two or more gases, or liquefied gases are mixed, their hazardous properties may combine to create additional,
unexpected hazards. Obtain and evaluate the safety information for each component before you produce the product.
Remember, gases and liquids have properties which can cause serious injury or death.
Hazard Rating Systems
NFPA RATINGS:
NFPA Ra HM
RATINGS:
HMIS Ratings
Standard Valve Connections
Threaded
Pin-indexed yoke
Use the proper CGA connections. DO NOT USE ADAPTERS.
This Material Safety Data Sheet has been established for the best knowledge of DIGAS.
Details given in this document are believed to be correct at the best of DIGAS knowledge. Whilst proper care has been taken inthe preparation of this document, no liability for injury or damage resulting from its use can be accepted.
End of Documents.
Aldakheel Industrial Gases Plant
Medina K.S.A.

Source: http://www.digas.com.sa/msds/MSDSOxygenLiquid.pdf