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MATERIAL SAFETY DATA SHEET
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
MATHESON TRI-GAS, INC. EMERGENCY CONTACT:
959 ROUTE 46 EAST CHEMTREC 1-800-424-9300
PARSIPPANY, NEW JERSEY 07054-0624 INFORMATION CONTACT:
973-257-1100
SUBSTANCE: HYDROGEN
TRADE NAMES/SYNONYMS:
MTG MSDS 49; HYDROGEN GAS; HYDROGEN COMPRESSED; HYDROGEN (H2); DIHYDROGEN;
UN 1049; H2; MAT11120; RTECS MW8900000
CHEMICAL FAMILY: inorganic, gas
CREATION DATE: Mar 07 1990
REVISION DATE: Jun 17 2004
2. COMPOSITION, INFORMATION ON INGREDIENTS
COMPONENT: HYDROGEN
CAS NUMBER: 1333-74-0
PERCENTAGE: 100.0
3. HAZARDS IDENTIFICATION
NFPA RATINGS (SCALE 0-4): HEALTH=0 FIRE=4 REACTIVITY=0
EMERGENCY OVERVIEW:
COLOR: colorless
PHYSICAL FORM: gas
ODOR: odorless
MAJOR HEALTH HAZARDS: difficulty breathing
PHYSICAL HAZARDS: Flammable gas. May cause flash fire.
POTENTIAL HEALTH EFFECTS:
INHALATION:
SHORT TERM EXPOSURE: nausea, vomiting, difficulty breathing, irregular heartbeat, headache, fatigue,
dizziness, disorientation, mood swings, tingling sensation, loss of coordination, convulsions,
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unconsciousness, coma
LONG TERM EXPOSURE: no information is available
SKIN CONTACT:
SHORT TERM EXPOSURE: no information on significant adverse effects
LONG TERM EXPOSURE: no information is available
EYE CONTACT:
SHORT TERM EXPOSURE: no information on significant adverse effects
LONG TERM EXPOSURE: no information is available
INGESTION:
SHORT TERM EXPOSURE: ingestion of a gas is unlikely
LONG TERM EXPOSURE: ingestion of a gas is unlikely
4. FIRST AID MEASURES
INHALATION: If adverse effects occur, remove to uncontaminated area. Give artificial respiration if not
breathing. If breathing is difficult, oxygen should be administered by qualified personnel. Get immediate
medical attention.
SKIN CONTACT: Wash exposed skin with soap and water.
EYE CONTACT: Flush eyes with plenty of water.
INGESTION: If a large amount is swallowed, get medical attention.
NOTE TO PHYSICIAN: For inhalation, consider oxygen.
5. FIRE FIGHTING MEASURES
FIRE AND EXPLOSION HAZARDS: Severe fire hazard. Severe explosion hazard. Vapor/air mixtures are
explosive. Pressurized containers may rupture or explode if exposed to sufficient heat. Electrostatic
discharges may be generated by flow or agitation resulting in ignition or explosion.
EXTINGUISHING MEDIA: carbon dioxide, regular dry chemical
Large fires: Flood with fine water spray.
FIRE FIGHTING: Move container from fire area if it can be done without risk. Cool containers with water
spray until well after the fire is out. Stay away from the ends of tanks. For fires in cargo or storage area: Cool
containers with water from unmanned hose holder or monitor nozzles until well after fire is out. If this is
impossible then take the following precautions: Keep unnecessary people away, isolate hazard area and deny
entry. Let the fire burn. Withdraw immediately in case of rising sound from venting safety device or any
discoloration of tanks due to fire. For tank, rail car or tank truck: Stop leak if possible without personal risk.
Let burn unless leak can be stopped immediately. For smaller tanks or cylinders, extinguish and isolate from
other flammables. Evacuation radius: 800 meters (1/2 mile). Do not attempt to extinguish fire unless flow of
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material can be stopped first. Flood with fine water spray. Cool containers with water spray until well after
the fire is out. Apply water from a protected location or from a safe distance. Avoid inhalation of material or
combustion by-products. Stay upwind and keep out of low areas. Evacuate if fire gets out of control or
containers are directly exposed to fire. Evacuation radius: 500 meters (1/3 mile). Consider downwind
evacuation if material is leaking. Stop flow of gas.
LOWER FLAMMABLE LIMIT: 4.0%
UPPER FLAMMABLE LIMIT: 75%
AUTOIGNITION: 752 F (400 C)
6. ACCIDENTAL RELEASE MEASURES
OCCUPATIONAL RELEASE:
Avoid heat, flames, sparks and other sources of ignition. Do not touch spilled material. Stop leak if possible
without personal risk. Reduce vapors with water spray. Keep unnecessary people away, isolate hazard area
and deny entry. Remove sources of ignition. Ventilate closed spaces before entering.
7. HANDLING AND STORAGE
STORAGE: Store and handle in accordance with all current regulations and standards. Grounding and
bonding required. Subject to storage regulations: U.S. OSHA 29 CFR 1910.101. Keep separated from
incompatible substances.
8. EXPOSURE CONTROLS, PERSONAL PROTECTION
EXPOSURE LIMITS:
HYDROGEN:
ACGIH (simple asphyxiant)
VENTILATION: Ventilation equipment should be explosion-resistant if explosive concentrations of
material are present. Provide local exhaust ventilation system. Ensure compliance with applicable exposure
limits.
EYE PROTECTION: Eye protection not required, but recommended.
CLOTHING: Protective clothing is not required.
GLOVES: Wear appropriate chemical resistant gloves.
RESPIRATOR: Under conditions of frequent use or heavy exposure, respiratory protection may be needed.
Respiratory protection is ranked in order from minimum to maximum. Consider warning properties before
use.
For Unknown Concentrations or Immediately Dangerous to Life or Health -
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Any supplied-air respirator with full facepiece and operated in a pressure-demand or other positive-pressure
mode in combination with a separate escape supply.
Any self-contained breathing apparatus with a full facepiece.
9. PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE: gas
COLOR: colorless
ODOR: odorless
TASTE: tasteless
MOLECULAR WEIGHT: 2.0
MOLECULAR FORMULA: H2
BOILING POINT: -423 F (-253 C)
FREEZING POINT: -434 F (-259 C)
VAPOR PRESSURE: 760 mmHg @ -253 C
VAPOR DENSITY (air=1): 0.07
SPECIFIC GRAVITY: Not applicable
DENSITY: 0.08987 g/L @ 0 C
WATER SOLUBILITY: 1.82% @ 20 C
PH: Not applicable
VOLATILITY: Not applicable
ODOR THRESHOLD: Not available
EVAPORATION RATE: Not applicable
VISCOSITY: 0.008957 cP @ 26.8 C
COEFFICIENT OF WATER/OIL DISTRIBUTION: Not applicable
SOLVENT SOLUBILITY:
Slightly Soluble: alcohol, ether
10. STABILITY AND REACTIVITY
REACTIVITY: Stable at normal temperatures and pressure.
CONDITIONS TO AVOID: Avoid heat, flames, sparks and other sources of ignition. Minimize contact
with material. Containers may rupture or explode if exposed to heat.
INCOMPATIBILITIES: metals, oxidizing materials, metal oxides, combustible materials, halogens, metal
salts, halo carbons
HAZARDOUS DECOMPOSITION:
Thermal decomposition products: miscellaneous decomposition products
POLYMERIZATION: Will not polymerize.
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11. TOXICOLOGICAL INFORMATION
Not available
12. ECOLOGICAL INFORMATION
Not available
13. DISPOSAL CONSIDERATIONS
Dispose in accordance with all applicable regulations. Subject to disposal regulations: U.S. EPA 40 CFR
262. Hazardous Waste Number(s): D001.
14. TRANSPORT INFORMATION
U.S. DOT 49 CFR 172.101:
PROPER SHIPPING NAME: Hydrogen, compressed
ID NUMBER: UN1049
HAZARD CLASS OR DIVISION: 2.1
LABELING REQUIREMENTS: 2.1
QUANTITY LIMITATIONS:
PASSENGER AIRCRAFT OR RAILCAR: Forbidden
CARGO AIRCRAFT ONLY: 150 kg
CANADIAN TRANSPORTATION OF DANGEROUS GOODS:
SHIPPING NAME: Hydrogen, compressed
UN NUMBER: UN1049
CLASS: 2.1
15. REGULATORY INFORMATION
U.S. REGULATIONS:
CERCLA SECTIONS 102a/103 HAZARDOUS SUBSTANCES (40 CFR 302.4): Not regulated.
SARA TITLE III SECTION 302 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355.30): Not
regulated.
SARA TITLE III SECTION 304 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355.40): Not
regulated.
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SARA TITLE III SARA SECTIONS 311/312 HAZARDOUS CATEGORIES (40 CFR 370.21):
ACUTE: Yes
CHRONIC: No
FIRE: Yes
REACTIVE: No
SUDDEN RELEASE: Yes
SARA TITLE III SECTION 313 (40 CFR 372.65): Not regulated.
OSHA PROCESS SAFETY (29CFR1910.119): Not regulated.
STATE REGULATIONS:
California Proposition 65: Not regulated.
CANADIAN REGULATIONS:
WHMIS CLASSIFICATION: A, B1.
NATIONAL INVENTORY STATUS:
U.S. INVENTORY (TSCA): Listed on inventory.
TSCA 12(b) EXPORT NOTIFICATION: Not listed.
CANADA INVENTORY (DSL/NDSL): Listed on inventory.
16. OTHER INFORMATION
漏Copyright 1984-2005 MDL Information Systems, Inc. All rights reserved.
MATHESON TRI-GAS, INC. MAKES NO EXPRESS OR IMPLIED WARRANTIES,
GUARANTEES OR REPRESENTATIONS REGARDING THE PRODUCT OR THE
INFORMATION HEREIN, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY
OF MERCHANTABILITY OR FITNESS FOR USE. MATHESON TRI-GAS, INC. SHALL NOT BE
LIABLE FOR ANY PERSONAL INJURY, PROPERTY OR OTHER DAMAGES OF ANY
NATURE, WHETHER COMPENSATORY, CONSEQUENTIAL, EXEMPLARY, OR
OTHERWISE, RESULTING FROM ANY PUBLICATION, USE OR RELIANCE UPON THE
INFORMATION HEREIN.
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