Gas Detector Knowledge of Gas Awareness: Hydrogen (H2)

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Chemical Identity
● Product Name: Hydrogen
● Chemical Molecular Formula: H₂
● Alias: Hydrogen
● Product Use Type: General Industry

[Composition/Composition Information]

Ingredient CAS Number Concentration (Volume)
Hydrogen 1333-74-0 100%

Concentration is nominal. For the exact concentration of the mixture, please refer to the company's specifications.

[Overview of Dangers]
Emergency Summary
● Highly flammable and can cause rapid suffocation.
● High-pressure gas; may form explosive mixtures with air.
● Risk of fire or explosion if exposed to heat, sparks, or open flames.
● Avoid breathing in the gas; use self-contained breathing apparatus (SCBA) if necessary.

Potential Health Hazards
● Inhalation: High concentrations may lead to unconsciousness quickly. The victim may not be aware of the danger.
● Skin Contact: No adverse effects reported.
● Ingestion: Not a known route of exposure.
● Chronic Effects: Not applicable.

Exposure Guidelines
● Main route of exposure: Inhalation.
● Target Organ: Unknown.

Symptoms
● Exposure to low-oxygen environments may cause dizziness, nausea, loss of coordination, and unconsciousness.

Environmental Impact
● Generally considered harmless to the environment.

[First Aid]
● Move the affected person to a safe area and provide oxygen if needed.
● If breathing stops, perform artificial respiration immediately.
● For eye contact, flush with water for at least 15 minutes.
● For skin contact, rinse with soap and water.

[Fire-Fighting Measures]
● Suitable extinguishing agents include water, dry chemical, or CO₂.
● Special hazards: Static electricity can ignite hydrogen; avoid using water near high-pressure leaks.
● Firefighters should wear SCBA and avoid direct exposure to leaking gas.

[Leakage Emergency Treatment]
● Evacuate the area and eliminate all ignition sources.
● Increase ventilation and monitor gas concentration.
● Do not attempt to repair leaks unless trained and equipped.

[Operation and Storage]
● Store cylinders in well-ventilated areas, away from heat and ignition sources.
● Never store cylinders horizontally or expose them to extreme temperatures.
● Always secure cylinders upright and close valves after use.
● Ensure proper grounding of all equipment to prevent static buildup.

[Contact Control/Personal Protection]
● Use appropriate PPE such as safety glasses, gloves, and protective clothing.
● Ensure good ventilation to prevent gas accumulation.

[Physical and Chemical Properties]
● Colorless, odorless, and highly flammable gas.
● Boiling point: -252.9°C; Melting point: -259.2°C.
● Flammable range: 4% to 75% in air.

Stability and Reactivity
● Stable under normal conditions but reacts violently with oxidants.
● Avoid exposure to heat, sparks, or open flames.

[Ecological Data]
● No significant ecological impact reported.
● Not toxic to aquatic life in tested concentrations.

Disposal
● Return unused product to the supplier in original containers.
● Do not release into the environment or into drainage systems.

[Transport Information]
● UN Number: 1049, Class 2.1 (Flammable Gas).
● Transport in accordance with ADR, IATA, and IMDG regulations.

[Regulatory Information]
● Complies with OSHA, EPA, and other international standards.
● No carcinogens or reproductive toxins present per California Proposition 65.

[Other Information]
Level: NFPA Level Level: HMIS Level
Health: 0 Health: 0
Flammability: 4 Flammability: 4
Instability: 0 Physical Hazards: 3

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