There are grain size requirements for carbon materials. The particle size is too fine, the flying loss and the loss caused by combustion in the furnace mouth are relatively large. The particle size is too coarse, the diffusion area in the furnace is not enough, and the distribution is not uniform, white aluminium oxide which is unfavorable for… Show more
Fellow ACS Region Board Chairs / Vice-Chairs, Since registration has now opened for the 2020 Leadership Institute I checked back with Lee Latimer on where things stood with organizing a region board summit on the Saturday of that weekend. Lee has replied that other ACS Board of Directors responsibilities on that Saturday will preclude such a… Show more
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Is there a service where a chemist will provide testing to check a product (i.e. make-up, shampoo, etc.) to see if it's been tampered with? If so, kindly provide contact info for this service.
Job Posting - Branch Chief for the Propellants Branch, Air Force Research Laboratory, Edwards AFB, CA
Propellant Formulator, Air Force Research Laboratory, EAFB, CA
Since alumina powder can be used as a raw material for brown fused alumina, alumina powder must be stronger than other materials, and its effect on white corundum is also very large. Therefore, we will start with the effect of alumina powder on white corundum. We all know that white corundum is white, and the white appearance of white corundum is… Show more
All received input has been included in the document. Please begin the editing process. Version 3 Division of Business Development & Management focuses on the business of chemistry, rather than a discipline of chemistry. We focus on topics such as sales & marketing, financing, product development, employee relations, quality systems, public… Show more
Version 6 (The above work nicely as Positioning statements. - my take on elevator speeches is they need to be more conversational and able to be said in the 30 seconds before the door closes! ) So in response to the Q what or who is BMGT? - perhaps something like this: BMGT is about the business of chemistry. We focus on the essentials that…
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Hi, I am a high school chemistry student (by no means a chemist or professional). I am wondering how polyatomic ions obtain extra electrons/how they are formed. I understand that polyatomic ions are covalently bonded molecules, but I am curious on how they obtain the extra electrons needed to form anions and am struggling to find the answer… Show more
As John said, the electrons for the anion come from an atom that forms a cation by "giving up" the electron. You can't have an anion without a cation. So while your chemistry book might show a table of anions in their charged form alone without a cation this would never happen in "real life". There would always be a cation with it - and John…