Gas Detector Knowledge Gas Recognition: Oxygen (O2)

News Related Keywords: No tags.


Chemical Identity
● Product Name: Oxygen (Cooled)
● Chemical Formula: O₂
● Common Names: Oxygen (Cooled), Oxygen USP, LOX, Cryogenic Liquid Oxygen
● Product Use Type: General Industry

[Composition/Composition Information]

Ingredient CAS Number Concentration (Volume)
Oxygen 7782-44-7 100%

Concentration is nominal. For exact concentration of the mixture, refer to the technical specifications.

[Overview of Dangers]
Emergency Summary
● Extremely cold liquid and pressurized gas.
● Direct contact with liquid can cause frostbite.
● May react violently with flammable materials.
● Keep away from oil, grease, and combustibles.
Potential Health Hazards
● Inhalation: Breathing 75% or more of atmospheric oxygen for several hours may lead to nasal congestion, cough, sore throat, chest pain, and difficulty breathing. Breathing pure oxygen can cause lung damage and affect the central nervous system. Atmospheric oxygen pressure of 75% or more may cause similar symptoms.
● Eye Contact: Contact with liquid may cause cold burns or frostbite.
● Skin Contact: Contact with liquid may cause cold burns or frostbite. Severe frostbite is possible.
● Ingestion: Not considered a potential route of exposure.
Exposure Guidelines
● Main route of exposure: Inhalation. Eye and skin contact.
● Target Organ: None.
● Worsening of pre-existing conditions: Using oxygen for people with chronic obstructive pulmonary disease may increase blood oxygen levels, reduce breath pressure, and raise carbon dioxide to dangerous levels.

[First-Aid]
• Skin Contact: Remove contaminated clothing and shoes. Immediately flush eyes or skin with plenty of water for at least 15 minutes. Do not remove clothing. If possible, place the affected area in a warm water bath (not exceeding 40°C). Use a sterile dressing to cover the wound.
● Eye Contact: Rinse immediately with water and seek medical advice.
● Ingestion: Not considered a potential route of exposure.
● Inhalation: Seek medical attention after severe exposure. Move to fresh air.

[Fire-Fighting Measures]
● Suitable Extinguishing Agents: All known extinguishing agents can be used. Use an appropriate agent for surrounding fires.
● Special Hazards: Combustibles in contact with liquid oxygen may explode when ignited or subjected to impact. Some substances that are not flammable in air may burn in oxidant environments. Vapor clouds can reduce visibility. Evacuate the site and remove all ignition sources until all leaked liquid has evaporated.
● Personal Protective Equipment: Wear self-contained breathing apparatus if necessary. Fire-resistant clothing may not protect in oxygen-rich environments.
● Other Information: Some substances that are not flammable in air may burn in oxygen-rich environments (over 23%).

[Leakage Emergency Treatment]
● Personal Precautions: Clothing exposed to high oxygen concentrations for 30 minutes or more is a fire hazard. Stay away from ignition sources. Evacuate personnel. Increase ventilation and monitor oxygen levels. Leaked gas may form an oxygen-deficient vapor cloud.
● Cleaning Methods: Increase ventilation. Evacuate the site and remove all ignition sources until all liquid has evaporated.
● Other Suggestions: Increase ventilation and monitor oxygen content.

[Operation and Storage]
Disposal
● All meters, valves, regulators, pipes, and equipment used in an oxygen environment must be cleaned. Never use oxygen as a substitute for compressed air. Avoid using oxygen nozzles for cleaning, especially clothing, as it increases combustion risk.
● Before use, understand the product's characteristics and dangers. Only trained personnel should handle compressed gas. Check labels before use. Do not remove or damage labels. Ensure gas systems are suitable, including pressure range and material. Do not feed back into containers. Close the valve after each use. Do not attempt to repair cylinder valves. Report damaged valves to the supplier. Prevent cryogenic liquids from being trapped without pressure safety devices.
● When transporting cylinders, use proper trailers (carts, trolleys, etc.) even for short distances. Consult your supplier for specific gas operations. Use a suitable pressure regulator when releasing gas at lower pressure than the vessel. Avoid mechanical vibration to prevent damage to valves and pressure relief devices. Use ducts designed for cryogenic fluids. Ensure equipment is clean and meets pressure ratings. Avoid contact between oils, greases, or flammable substances and oxygen containers.
Store
● Warning! Do not change or apply pressure to mating connections. Keep containers vertical. Store in well-ventilated buildings, preferably open to the atmosphere. Avoid temperatures over 50°C (122°F). Implement "first-in, first-out" storage. Avoid narrow spaces. Separate full and empty cylinders. Store in areas free from fire risks and away from heat and ignition sources. Return empty bottles promptly. Regularly check containers for leaks. Do not store in open air to prevent rust and weather damage. Avoid corrosive environments. Equip cryogenic containers with pressure safety devices. Maintain separation between oxygen, oxidants, and flammable gases.

[Contact Control/Personal Protection]
Engineering Control
● Use natural or mechanical controls to prevent oxygen concentration in anoxic atmospheres from exceeding 23%.
PERSONAL PROTECTIVE EQUIPMENT ● Respiratory Protection: No need for special protection if proper ventilation is available.
● Hand Protection: Use insulating or leather gloves. Working gloves recommended when handling cylinders. Ensure gloves are clean and free of oil and grease. Choose gloves with penetration time longer than expected usage.
● Eye Protection: Protect eyes, face, and skin from splashes. Safety glasses recommended when handling cylinders.
Skin and Body Protection: Those exposed to high oxygen concentrations should stay in well-ventilated areas for 30 minutes before entering enclosed spaces or near ignition sources. Avoid touching uninsulated pipes or containers with unprotected skin. Super-cooled metals can cause painful adhesion. Use safety shoes when handling cylinders.
● Hygiene Instructions: Ensure adequate ventilation, especially in confined areas.

[Physical and Chemical Properties]
● State: Liquefied gas.
● Color: Blue.
● Odor: Odorless.
● Molecular Weight: 32 g/mol.
Relative Vapor Density: 1.1 (air = 1).
Relative Density: 1.1 (water = 1).
● Boiling Point: -297°F (-183°C).
Critical Temperature: -180°F (-118°C).
● Melting Point: -362°F (-219°C).
● Water Solubility: 0.039g/L.
[Stability and Reactivity]
● Stability: Stable under normal conditions.
● Conditions to Avoid: Oil, grease, flammable substances, organic matter, finely divided aluminum, carbon steel, reducing agents.

[Toxicology Information]
Acute Health Hazards
● Ingestion: No useful information available.
● Inhalation: No useful information available.
● Skin: No useful information available.
Chronic Health Hazards
• Preterm infants exposed to high oxygen concentrations may suffer delayed retinal damage, leading to retinal detachment and blindness. Long-term exposure (24–48 hours) to 100% oxygen in adults may also cause retinal damage. At 2 or more atmospheres, CNS poisoning may occur, causing nausea, vomiting, dizziness, twitching, visual changes, loss of consciousness, and seizures. At 3 atmospheres, symptoms may appear within 6 minutes.

[Ecological Data]
● Ecotoxicological Effects:
Water Toxicity: No useful information available.
Toxicity to Other Organisms: No relevant data available.
● Persistence and Degradability:
Liquidity: No relevant information.
Bioaccumulation: No useful information available.

Disposal
● Residual/Unused Products: Return unused products to the supplier in original cylinders. Contact the supplier for guidance.
● Contaminated Packaging: Recycled by the supplier.

[Transport Information]
● CFR Correct Transport Name: Oxygen, Cooling Liquid. Rating: 2.2(5.1). UN/ID: UN1005.
● IATA Correct Shipping Name: Oxygen, Cooling Liquid. Rating: 2.2 (5.1). UN/ID: UN1005.
● IMDG Correct Transport Name: Oxygen, Cooling Liquid. Rating: 2.2 (5.1). UN/ID: UN1005.
● CTC Proper Shipping Name: Oxygen, Cooling Liquid. Rating: 2.2 (5.1). UN/ID: UN1005.
● Other Information: Avoid transporting vehicles not separated from the driver’s cab. Ensure the driver understands potential hazards and knows emergency procedures.

[Regulatory Information]
Occupational Safety and Health Administration (OSHA) Hazard Communication Standard (29CFR 1910.1200): Hazard Ratings – Oxidizers, Low Temperature (Cooling).
Country List of Regulations
United States TSCA
EU EINECS
Canada DSL
Australia AICS
Japan ENCS
Korea ECL
China SEPA
Philippines PICCS
EPASARA Title III, Section 312 (40CFR370): Hazard Classifications – Acute Health Hazards, Fire Hazards. The California Safe Drinking Water and Toxic Enforcement Act (Proposition 65): This product does not contain any chemicals known to cause cancer, birth defects, or other harmful effects in California.

[Other Information]
Level: NFPA Level Level: HMIS Level
Health: 3 Health: 3
Flammability: 0 Flammability: 0
Instability: 0 Physical Hazards: 2
Special Case: Ox

Rivets

Round Head Rivets,Stainless Steel Rivets,Mushroom Head Rivets,Stainless Steel Round Head Rivets

Kunshan Liyue Hardware Products Co.,Ltd , https://www.fixlyhardware.com