| Title | Summary | |
| Compendium of Pesticide Common Names(Free) | SummaryPage |
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| Animated Glossary of Nuclear Science Terms, Lawrence Berkeley National Laboratory | SummaryPage |
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| EPA/OPPT: Chemical Fact Sheets(Free) | SummaryPage |
| EPA: Pesticides - Glossary | SummaryPage |
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| Essentials of the SI | SummaryPage |
| Eugene Garfield, Founder & Chairman Emeritus, Institute for Scientific Information | SummaryPage |
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| Experimental Data on Mixtures, DIPPR - Project 805 | SummaryPage |
| Exploring the Table of Isotopes, Lawrence Berkeley National Laboratory (LBNL) | SummaryPage |
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| FDA/CFSAN - Elemental Analysis Manual for Food & Related Products(Partly Free) | SummaryPage |
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| Fuel Cell Glossary | SummaryPage |
| General Chemistry Glossary(Free) | SummaryPage |
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| Glossary of Corrosion Related Terms(Free) | SummaryPage |
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| Glossary of Hydrogen and Fuel Cells | SummaryPage |
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| Glossary of Polymer and Plastic Terms from NOVA Chemicals Corporation | SummaryPage |
| Glossary of Radiation Terms(Free) | SummaryPage |
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| Glossary of Terms Used in Physical Organic Chemistry (IUPAC Recommendations 1994)(Free) | SummaryPage |
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| Guide to Chemical Databases Searching on STN | SummaryPage |
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| Hazards Analysis of Sudan | SummaryPage |
| High Performance Liquid Chromatography(HPLC): A Users Guide | SummaryPage |
| Historical Statistics for Mineral Commodities in the United States(Free) | SummaryPage |
| History of Gallium | SummaryPage |
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| Hobbes' Internet Timeline中文(GB)版 | SummaryPage |
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| Images Collection of RSC | SummaryPage |
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| Ionization Energies, Electron Affinities and Electronegativies of the Elements | SummaryPage |
| Ionization Potentials / Electron Affinities(Free) | SummaryPage |
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| ISIF website styrene-related glossary | SummaryPage |
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| Journal Abbreviation Sources | SummaryPage |
| Journals Ranked by Impact: Chemical Engineering | SummaryPage |
| Laboratory Chemical Safety Summaries of the Howard Hughes Medical Institute (LCSSs)(Free) | SummaryPage |
| LEOS Tech Briefs, Lasers and ElectroOptics Society) | SummaryPage |
| Library Guidelines for ACS Approved Programs | SummaryPage |
| Linus Pauling and the Race for DNA: A Documentary History | SummaryPage |
| List of Food Additives in European Community - E numbers | SummaryPage |
| Manual of Manuals (Laboratory Analytical Chemistry Methods Manuals) | SummaryPage |
| Material Safety Data Sheet (MSDS) | SummaryPage |
| MegaConverter(Free) | SummaryPage |
| Mindat.org(Free) | SummaryPage |
| Mineral Resources Program, US | SummaryPage |
| Mineralogy Database | SummaryPage |
| Molar Thermodynamic Properties of Pure Substances | SummaryPage |
| Molecule of the Month, University of Oxford(Free) | SummaryPage |
| Molecules of the Month, Imperial College London(Free) | SummaryPage |
| MSDS from ESPI(Free) | SummaryPage |
| Named Organic Reactions Collection from the University of Oxford | SummaryPage |
| National Libraries of the World: an Address List | SummaryPage |
| National Pesticide Information Center (NPIC) | SummaryPage |
| National Standards Systems Network (NSSN) | SummaryPage |
| National Statistics Online, UK | SummaryPage |
| NATO Handbook on the Medical Aspects of NBC Defensive Operations AMedP-6(B) PART III - Chemical(Free) | SummaryPage |
| NFPA Chemical Hazard Labels(Free) | SummaryPage |
| NLM Fact Sheets | SummaryPage |
| Nomenclature Bibliographic Sources | SummaryPage |
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| Pesticide Manual | SummaryPage |
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| Properties of popular NMR solvents | SummaryPage |
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| Regionally Based Assessment of Persistent Toxic Substances | SummaryPage |
| Reliable Measurements: A Guidebook for Trace Analysts | SummaryPage |
| Rotterdam Convention | SummaryPage |
| Safe Use Of Pesticides in Agriculture | SummaryPage |
| SEED Science Center Web Site | SummaryPage |
| Senior Chemistry Data Tables | SummaryPage |
| Solubility Resources, Caltech | SummaryPage |
| Standard Industrial Classification Code Descriptions | SummaryPage |
| Standard Industrial Classification Search, USA(Free) | SummaryPage |
| Stockholm Convention on Persistent Organic Pollutants (POPs) | SummaryPage |
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| Table of Nuclides | SummaryPage |
| Tables for Organic Compound Identification | SummaryPage |
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| Terms of Environment | SummaryPage |
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| The "Knowledge Organization on Internet" Mini-FAQ | SummaryPage |
| The ABC's of Nuclear Science, Lawrence Berkeley National Laboratory | SummaryPage |
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| The Sections of Chemical Abstracts | SummaryPage |
| The Virtual Classroom at Department of Chemistry, The University of Akron | SummaryPage |
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| TRC Thermodynamic Tables - Non-Hydrocarbons | SummaryPage |
| U.S. Geological Survey (USGS) | SummaryPage |
| UK Pesticide Guide | SummaryPage |
| User's Guide of PQDD-B in Chinese | SummaryPage |
| USGS NAWQA Pesticide National Synthesis Project | SummaryPage |
| Water Glossary (An explanation of terminology concerning water related issues) | SummaryPage |
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| yourDictionary.com(Free) | SummaryPage |
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