When impregnated with LSD, perforated blotter paper, as illustrated above, is a popular form of dispensing the drug.A typical full size sheet of LSD blotter paper is 900 1/4" squares.Affinity of LSD for various receptors, averaged from data from the PDSP
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LSD

D-lysergic acid diethylamide, commonly called acid, LSD, or LSD-25, is a powerful semisynthetic psychedelic drug colloquially measured in "hits" or "tabs". An average single dose of LSD during the 1960s was between 100 and 150 micrograms, a tiny amount roughly equal to one-tenth the weight of a grain of sand. Today, a typical single dose of LSD is as low as 25-50 micrograms. Threshold effects can be felt with as little as 20 micrograms. more...

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The effects of LSD can vary greatly, depending on factors such as previous experiences, state of mind and environment, as well as dose strength. Generally, LSD causes expansion and altered experience of senses, emotions, memories, and awareness for 8 to 14 hours. In addition, LSD usually produces visual effects such as moving geometric patterns, "trails" behind moving objects, and brilliant colors. LSD does not produce hallucinations in the strict sense but instead illusions and vivid daydream-like fantasies, in which ordinary objects and experiences can take on entirely different appearances or meanings. At higher concentrations it can cause synaesthesia. The drug sometimes spurs long-term or even permanent changes in a user's personality and life perspective.

LSD is synthesized from lysergic acid, derived from ergot. Ergot is a grain fungus that typically grows on rye. LSD is sensitive to oxygen, ultraviolet light, and chlorine, especially in solution. However its potency may last years if stored away from light and moisture in a freezer. In pure form it is colorless, odorless, and mildly bitter. LSD is typically delivered orally, usually on a substrate such as absorbent blotter paper, a sugar cube, or gelatin.

Introduced by Sandoz Laboratories as a drug with various psychiatric uses, LSD quickly became a therapeutic agent that appeared to show great promise. However, the extra-medical use of the drug in western society in the middle years of the twentieth century led to a political firestorm and government insider panic that resulted in the banning of the substance for medical as well as recreational and spiritual uses. Despite this, it is still considered a promising drug in some intellectual circles.

Origin

"LSD" is an initialism formed from the German chemical name of the compound, Lysergsäure-diethylamid. It was first synthesized in 1938 by Swiss chemist Dr. Albert Hofmann at the Sandoz Laboratories in Basel as part of a large research program searching for medically useful ergot alkaloid derivatives. Its psychedelic properties were unknown until 5 years later, when Hofmann, acting on a hunch, returned to work on the chemical. He attributed the discovery of the compound's psychoactive effects to the accidental absorption of a tiny amount through his skin on April 16, which led to him testing a larger amount on himself for psychoactivity (full story).

Until 1966, LSD and psilocybin were provided by Sandoz Laboratories free of charge to interested scientists. The use of these compounds by psychiatrists to gain a better subjective understanding of the schizophrenic experience was an accepted practice. Many clinical trials were conducted on the potential use of LSD in psychedelic psychotherapy, generally with very positive results.

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Canada confirms 15-ppm ULSD rule for 2006; no LSD option - Brief Article
From Diesel Fuel News, 8/5/02 by Jack Peckham

As expected, Canada last week finalized its rules mandating that all highway diesel fuel convert to a 15-ppm sulfur limit starting June 1, 2006.

Unlike the U.S., no "temporary compliance option" allowing up to 20% of today's 500 ppm sulfur fuel will allowed to be sold during a four-year phase-in. Rather, Canada will take a 100% ULSD plunge, although Arctic-area distributors can delay complete conversion until Sept. 1, 2007, due to relatively slow inventory turnover there.

According to the final regulation published in the July 31 Canada Gazette (see: http://canada.gc.ca/gazette/part2/pdf/g213616.pdf), the Environment Ministry figures that the rule will cost Canadian refiners about (U.S.)$690 million in capex and about $50 million annually in opex, or in total about 3.7 cents/gallon (capex plus opex).

The ministry rejected sulfur credits trading or tax schemes to incentivize ULSD production, arguing these were either too uncertain or else potentially too costly.

But it took note of pipeline/distribution sulfur contamination problems that are likewise creating great anxiety among U.S. refiners (see related story, P5) for 2006 ULSD rules.

"Natural Resources Canada, in consultation with other federal and provincial government departments and industry, is now considering the structure and terms of reference of a study to investigate the potential constraints of the existing distribution system and the possible effects in terms of distillate supply," the Ministry notice says.

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