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Halon 1301 causes only slight giddiness at its effective concentration of 5%, and even at 15% those exposed remain conscious but impaired and suffer no long-term effects. (Experimental animals have also been exposed to 2% concentrations of Halon 1301 for 30 hours per week for 4 months, with no discernible health effects.
For example, R-22 has one carbon atom, one hydrogen atom (2−1 = 1), two fluorine atoms, and one chlorine atom (4−2−1 = 1), so it is chlorodifluoromethane, while R-134 has two carbon atoms (2−1 = 1), two hydrogen atoms (3−1 = 2), four fluorine atoms, and no chlorine atoms (6−2−4 = 0), so it is one of the tetrafluoroethanes. This ...
2,2-Dichloro-1,1,1-trifluoroethane can be produced by reacting tetrachloroethylene with hydrogen fluoride in the gas phase. This is an exothermic reaction and requires a catalyst: This is an exothermic reaction and requires a catalyst:
Germanium (32 Ge) has five naturally occurring isotopes, 70 Ge, 72 Ge, 73 Ge, 74 Ge, and 76 Ge. Of these, 76 Ge is very slightly radioactive, decaying by double beta decay with a half-life of 1.78 × 10 21 years [4] (130 billion times the age of the universe).
Down 1 basis point. ... (5 year) CD. 1.32%. ... Reserve announced it was lowering the federal funds target interest rate by 25 basis points to a range of 4.50% to 4.75% — two months after its ...
The 32X contains two Hitachi SH-2 32-bit RISC processors with a clock speed of 23 MHz, [1] [3] which Sega claimed would allow the system to work 40 times faster than a stand-alone Genesis. [1] Its graphics processing unit is capable of producing 32,768 colors and rendering 50,000 polygons per second, which provides a noticeable improvement over ...
The longest-lived radioisotope is 32 Si, which is produced by cosmic ray spallation of argon. Its half-life has been determined to be approximately 150 years (with decay energy 0.21 MeV), and it decays by beta emission to 32 P (which has a 14.27-day half-life) [ 1 ] and then to 32 S .
From January 2008 to December 2012, if you bought shares in companies when Lenox D. Baker, Jr., M.D. joined the board, and sold them when he left, you would have a -30.6 percent return on your investment, compared to a -2.8 percent return from the S&P 500.