Pacific gas and electric's operations in the 1950s and 1960s which caused it to realease hexavalent chromium.
398914
One of the uses of hexavalent chromium is as an anti-corrosive coating. Out of all the other potential uses for hexavalent chromium, this is the only one that would seem to fall under the purview of PG&E's business.
198467
Because removing 3 protons from lead would require such a massive amount of energy (at great monetary expense) that the element would become unstable and continue decaying even after it had become gold.
651879
You say your a chemical engineer,???  today's pipes more often than not are nowadays plastic for carrying salt water, so your problem dosent exhist.
590355
Magnesium chloride (MgCl2) and hydrogen (H2) is the gas released in the reaction.
1143109
lead, poisonous gas emmissions...you are talking about damage...this stuff can kill you
40972
I believe Theisen AG of Germany produces Chlorine gas (CL2)
545818
My father manufactured the active ingredient in agent orange,(C-5,6), at Hooker Chemical's Montague Michigan plant for the duration of the Vietnam War. The process was so volatile and so toxic that it had to be manufactured on a seven story wall-less superstructure in the middle of a 160 acre field. All of the production was then loaded on railway tankcars for shippment to Dow Chemical of Midland Mi.for addition of solvents and packaging for shipment to the military. At the close of the war, the superstructure was dismantled, and it, and all associated equipment, tools etc. were buried in a huge clay lined disposal pit on the site. The site remains a Toxic hot spot to this day and all of the surrounding neighborhood has water piped into them as the groundwater is highly contaminated. From '82-'93 my father ran a chlorine plant's maintainence department on the persian gulf, about 25 kliks from Kuwait City in Saudi. In 1997 he fell ill with the small cell cancer that has become consistent, though unrecognized by our government, as due to exposure to AO or its components. I know this as I was a service officer for the Am Legion Post here in my  town, and have seen the wreckage that this stuff left in its wake. I am an Non Combatant, US Navy, Vietnam Era vet, ( Commonly refferred to as a "rear echelon puke" ), who salutes and thanks you for your service. Hope you are well, and look forward to your Photo posts as you are quite knowledgeable on the subject. God Bless, Jed
409355
the effects that it caused.
81481
Hard to say without a picture or to see the process. Gas pressure? Wind? Contaminants in the metal? Wrong gas mixture?\nHere's a couple of links that may help..
326833
Yeah, because gas has lead and cadmium which is carcinogenic and causes the mutation of cells when incorporated into the body then that's how you get cancer.
1151177
In 1960, the Trieste, a manned submersible owned by the U.S. Navy, descended to the bottom of the Mariana Trench.
1134642
Because of the presence of other minerals in the silicon dioxide.
317472
it happened in 1962 as a defoliant it was not just agent orange theirs several different colors. it has a half life of 10 years which means you can be contaminated in 10 years.the rice supply in japan was also contaminated too.i believe spraying stopped in 1975.they also came outwith super orange
509650
Chromium (a mineral) helps with sugary and salty addictions.  This is because your body is crying out for chromium and thats why you want sweet stuff.
816755
Pottasium, Sodium, Iron ,  Lead, Copper, Silver, Gold.
1019349
This site may lead you to the information you seek.\n\nhttp://www.petrochemistry.net/index.asp
596586
In Depth\n\nDuring the mid-twentieth century, Freon® was little appreciated but indispensable. The DuPont-produced gas made widespread use of refrigerators and air conditioners possible and served as propellant in aerosol sprays of all types. Up to the 1920s, most commonly used refrigerants were exceedingly hazardous substances. Late in the decade, two scientists doing research for General Motors’ (GM) Frigidaire subsidiary, developed an inert, nontoxic, and odorless replacement chlorofluorocarbon gas (CFC) called Freon® . GM asked DuPont to develop the product on a large scale and a plant was built at Deepwater, New Jersey, in 1930. In their work with the substance, DuPont scientists discovered that Freon® also made an effective aerosol propellant. Related CFCs also proved effective as degreasing agents and as the basis for Teflon® , a remarkably durable and inert plastic. Freon® products were produced and marketed through a joint DuPont-GM venture called Kinetic Chemicals Company up to 1949 when the operations came under control of the Organic Chemicals Department.\n\nDemand for Freon® refrigerants and propellants continued to grow until the 1970s when scientific studies indicated that CFCs were depleting the ozone layer that shielded the earth from harmful ultraviolet radiation. During the 1980s DuPont began developing more environmentally friendly hydroflourocarbons, eventually marketed as Suva® refrigerants and Dymel® propellants. During the 1980s, federal regulatory agencies banned the use of chlorofluorocarbons and DuPont began phasing out production, producing its last CFCs in the developed countries in 1995. The difficulties faced by American producers and consumers alike in curtailing their use of Freon® were a testament to its profound impact on postwar life.