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Dr. Daniel W. Fox and LEXAN polycarbonate. Dr. Daniel W. Fox (May 14, 1927 – February 15, 1989) was an American polymer chemist who is often regarded as the father of LEXAN. LEXAN is the flagship product of SABIC Innovative Plastics (formerly GE Plastics) and is used in everything from CDs and
(OC 6 H 4) 2 C(CH 3) 2 CO ) n + O 2, R* → (OC 6 H 4) 2 C(CH 3 CH 2)CO) n. This product can be further oxidized to form smaller unsaturated compounds. This can proceed via two different pathways, the products formed depends on which mechanism takes place. [38] Pathway A (OC 6 H 4) 2 C(CH 3 CH 2)CO + O 2, H* HO(OC 6 H 4)OCO + CH 3 COCH 2 (OC 6 ...
LEBC2, the Lexan bubble chamber, which had a diameter of 20 cm and was made of transparent plastic. The construction of the LExan Bubble Chamber, LEBC, was approved by the CERN Research Board on 16 November 1978. [1] Bubble chambers are similar to cloud chambers, both in application and in basic principle.
In 2011, the United States Environmental Protection Agency introduced the gallon gasoline equivalent as a unit of energy because their research showed most U.S. citizens do not understand the standard units. The gallon gasoline equivalent is defined as 33.7 kWh, [84] or about 1.213 × 10 8 joules.
To measure the tracking, 50 drops of 0.1% ammonium chloride solution are dropped on the material, and the voltage measured for a 3 mm thickness is considered representative of the material performance. Also term PTI (Proof Tracking Index) is used: it means voltage at which during testing on five samples the samples pass the test with no failures.
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The pound per square inch (abbreviation: psi) or, more accurately, pound-force per square inch (symbol: lbf/in 2), [1] is a unit of measurement of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force with magnitude of one pound-force applied to an area of one square inch .
40 Zirconium: List: 74 Zr 75 Zr 76 Zr 77 Zr 78 Zr 79 Zr 80 Zr 81 Zr 82 Zr 83 Zr 84 Zr 85 Zr 86 Zr 87 Zr 88 Zr 89 Zr 90 Zr 91 Zr 92 Zr 93 Zr 94 Zr 95 Zr 96 Zr 97 Zr 98 Zr 99 Zr 100 Zr 101 Zr 102 Zr 103 Zr