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Lucas test: negative (left) with ethanol and positive with t-butanol "Lucas' reagent" is a solution of anhydrous zinc chloride in concentrated hydrochloric acid. This solution is used to classify alcohols of low molecular weight. The reaction is a substitution in which the chloride replaces a hydroxyl group.
The ZINC database (recursive acronym: ZINC is not commercial) is a curated collection of commercially available chemical compounds prepared especially for virtual screening. ZINC is used by investigators (generally people with training as biologists or chemists ) in pharmaceutical companies , biotechnology companies , and research universities .
English: Zinc smelting flowchart, adapted from US EPA document. The top path is the pyrometallurgical process of smelting zinc and the bottom path is the electrolytic process. Source Classification Codes are given in parentheses.
Zinc smelting is the process of converting zinc concentrates (ores that contain zinc) into pure zinc. Zinc smelting has historically been more difficult than the smelting of other metals, e.g. iron , because in contrast, zinc has a low boiling point .
Lucas Oil owns or sponsors motorsports race teams, events and series at all levels, including NASCAR, INDYCAR, NHRA, IHRA, POWRi, ASCS, WAR and MLRA. [13] Lucas Oil also owns and operates many high-profile racing series, including Lucas Oil Off Road Racing Series, Monster Jam, Lucas Oil Drag Boat Series, Lucas Oil Pro Pulling League, Lucas Oil Late Model Dirt Series, Lucas Oil Modified Series ...
In cosmetics, zinc stearate is a lubricant and thickening agent used to improve texture. [4] It is an "activator" for accelerated rubber sulfur vulcanization. As discovered in the early days of vulcanization, zinc has a beneficial effect on the reaction of the sulfur with the polyolefin.
The shield in the coat of arms of the Royal Society of Chemistry, with the seven planetary-metal symbols. The seven metals known since Classical times in Europe were associated with the seven classical planets; this figured heavily in alchemical symbolism.
Naturally occurring zinc (30 Zn) is composed of the 5 stable isotopes 64 Zn, 66 Zn, 67 Zn, 68 Zn, and 70 Zn with 64 Zn being the most abundant (48.6% natural abundance).Twenty-eight radioisotopes have been characterised with the most stable being 65 Zn with a half-life of 244.26 days, and then 72 Zn with a half-life of 46.5 hours.