periodictable.comの競合サイトトップ10

webelements.com

explore the chemical elements through this periodic table

ptable.com

Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.

lenntech.com

lenntech designs, builds and installs a wide range of odour treatment, water purification and air filtration products using uv, ozone, ecosorb, drum filtration. also cooling towers.

environmentalchemistry.com

this site provides chemistry, environmental and hazardous materials news, careers & resources including: in depth articles; a detailed periodic table of elements; chemical database; hazmat emergency response guides; hazmat placarding information; and much more.

sciencenotes.org

Science Notes is a website which uses cookies. This document contains information on what is a cookie, how we use our cookies, and methods to opt out of using cookies if you desire.

americanelements.com

American Elements: The Materials Science Company™ | Certified bulk & lab quantity manufacturer & supplier of metals, chemicals, nanoparticles & other advanced materials.

pubchem.ncbi.nlm.nih.gov

PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more.

theodoregray.com

Kathy Ceceri has written a nice article about our quilting enterprise over at MakeZine: http://makezine.com/2016/12/20/check-out-the-behemoth-an-oversized-robot-that-makes-nerdy-quilts/

angstromsciences.com

Indirect Cooled Magnetrons incorporate an intermediate wall between the circular cathode’s cooling water and the sputtering target. This wall creates a permanent water-to-vacuum seal preventing leaks that could occur if a target is “sputtered through.”