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=:=0PRAX41R Praxair Material Safety Data Sheet <br /> Making our planet more praluctive" <br /> Product: Hydrogen, Compressed SIDS No. P-4604-H <br /> March 2012 <br /> 1. Chemical Product and Company Identification <br /> Product Name: Hydrogen, Compressed Trade Names: Hydrogen <br /> (MSDS No. P-4604-H) <br /> Chemical Name: Hydrogen Synonyms: Dihydrogen, parahydrogen, <br /> refrigerant gas R702, water gas <br /> Chemical Family: Permanent gas Product Grades: Industrial, 4.5, 4.5-Zero, 4.5 <br /> TOC, 5.0-UHP, 5.0-SPG, 5.5-SPG, 6.0-SPG, <br /> 6.0-UHP, and 6.0-Research <br /> Emergency Telephone Numbers: * Company Name: <br /> Praxair, Inc. <br /> Onsite emergencies: 1-800-645-4633 39 Old Ridgebury Road <br /> CHEMTREC: 1-800-424-9300 Danbury, CT 06810-5113 <br /> * Call emergency numbers 24 hours a day only for spills, leaks, fire, exposure, or accidents <br /> involving this product. For routine information, contact your supplier, Praxair sales <br /> representative, or call 1-800-772-9247. <br /> 2. Hazard Identification <br /> EMERGENCY OVERVIEW <br /> DANGER! Flammable high-pressure gas. <br /> Can form explosive mixtures with air. <br /> May ignite if valve is opened to air. <br /> Burns with invisible flame. <br /> May cause dizziness and drowsiness. <br /> Self-contained breathing apparatus may be required by rescue workers. <br /> Under ambient conditions, this is a colorless, odorless, tasteless gas. <br /> OSHA REGULATORY STATUS: This material is considered hazardous by the OSHA Hazard <br /> Communications Standard (29 CFR 1910.1200). <br /> Copyright 1980, 1986, 1992, 1997, 2000, 2004, 2007, 2012, <br /> Praxair Technology, Inc. All rights reserved. Page 1 of 10 <br /> FA vertical line in the left margin indicates revised or new material. <br />