Because magnets are hard, they were heated to 800° C to demagnetize and soften them prior to grinding them to dust. The separated REE residue at the end of the process can be remagnetized by exposing ...
THE very important letter of Dr. Aston in NATURE of December 18, 1919, gives much evidence in favour of a theory of the structure and composition of the nuclei of complex atoms as published by me five ...
Introduction / Hasok Chang and Catherine Jackson -- Part A. Chlorine and the theory of matter -- The discovery of chlorine : a window on the chemical revolution / Ruth Ashbee -- The elementary nature ...
HAUPPAUGE, N.Y., April 12, 2018 /PRNewswire-iReach/ -- LOOP-LOC, manufacturer of inground pool liners that services New Jersey, explains how chlorine and other chemicals work in the pool. Chlorine ...
The Environmental Protection Administration (EPA) yesterday said it would amend the Haloalkane Consumption Management Act (氟氯烴消費量管理辦法) this year so the country’s haloalkane (HCFC) consumption would be ...
I HAVE read Prof. Harkins's letter with great interest. If Prof. Harkins has succeeded in separating the isotopic hydrochloric acids he is certainly to be congratulated. The very meagre positive ...
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