Product Identification & Regulatory Data
Official chemical identifiers, CAS numbers, and regulatory compliance information
Basic Product Information
Regulatory Identifiers
Chemical Abstracts Service registry number - unique identifier for chemical substances
European Community number - used for regulatory compliance in EU/EEA
Uses Information
Overview
Hydrogen (CAS: 1333-74-0 ) is a colourless substance commonly used laboratory chemicals, synthesis of substances.
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GHS Hazard Classification & Safety Warnings
Globally Harmonized System (GHS) hazard pictograms, signal words, and safety classifications
Classification Status
Signal Word
Hazard Classifications
GHS Hazard Pictograms & Safety Symbols
GHS02
GHS04
GHS (Globally Harmonized System) pictograms indicate specific chemical hazard categories and safety precautions
Hazard Statements
- H220: Extremely flammable gas.
- H280: Contains gas under pressure; may explode if heated. May displace oxygen and cause rapid suffocation.
Precautionary Statements
- P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking.
- P377: Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
- P381: Eliminate all ignition sources if safe to do so.
- P410 + P403: Protect from sunlight. Store in a well-ventilated place.
Manufacturers & Suppliers
Authorized suppliers, manufacturers, and distribution network information
Sigma-Aldrich
manufacturer
3050 Spruce Street SAINT LOUIS MO 63103 USA
US
+1 800-325-5832
+1 800-325-5052
24/7 Emergency Response
Critical emergency contact numbers for chemical spills, exposure incidents, and medical emergencies
CHEMTREC
+1-703-527-3887
US
Chemical Composition & Hazardous Ingredients
Detailed component analysis, concentration ranges, and hazardous substance identification
Chemical Components & Hazardous Substances
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| hydrogne EC: 215-605-7 | 1333-74-0 | 90-100% | Hazardous |
Emergency First Aid Measures
Critical first aid procedures for chemical exposure incidents and medical emergencies
Inhalation Exposure
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
Skin Contact
Wash off with soap and plenty of water. Consult a physician.
Eye Contact
Flush eyes with water as a precaution.
Ingestion/Swallowing
Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
Related Chemical Substances & Alternative Products
Similar chemicals with comparable safety profiles and industrial applications
Technical Specifications & Material Properties
Physical state, chemical properties, melting point, boiling point, and material characteristics
Exposure Controls & Personal Protective Equipment
Occupational exposure limits, engineering controls, and required safety equipment
Engineering Controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.
Hand Protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. Splash contact Material: butyl-rubber Minimum layer thickness: 0.3 mm Break through time: 120 min Material tested:Butoject® (KCL 897 / Aldrich Z677647, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail [email protected], test method: EN374 If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the CE approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.
Eye Protection
Face shield and safety glasses Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Respiratory Protection
Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type AXBEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Environmental Exposure Controls
Prevent further leakage or spillage if safe to do so. Do not let product enter drains.
Transportation & Shipping Information
UN numbers, shipping names, transport classes, and regulatory transport requirements
UN Number
1049
Proper Shipping Name
Hydrogen, compressed
Transport Hazard Class
2.1
Chemical Safety FAQ & Common Questions
Most frequently asked questions about safety, handling, storage, and regulatory compliance
What other names is Hydrogen known by?
Hydrogen is also known as: waterstof
What is the hazard signal word for Hydrogen?
The signal word for this substance is "danger".
What is the physical form of Hydrogen?
Hydrogen is a compressed gas appearing as colourless . It has no data available odor.
What is Hydrogen used for?
Laboratory chemicals, Synthesis of substances
What are the hazard statements for Hydrogen?
This substance has 2 hazard statements: H220: Extremely flammable gas. H280: Contains gas under pressure; may explode if heated. May displace oxygen and cause rapid suffocation.
What is the melting point of Hydrogen?
The melting point is -259.2 ℃ (-434.6 °F) and the boiling point is -252.8 ℃ (-423.0 °F).