Isocyanic acid

Isocyanic acid is an organic compound with the formula HNCO, discovered in 1830 by Liebig and Wöhler. This colourless substance is volatile and poisonous, with a boiling point of 23.5 °C. Isocyanic acid is the simplest stable chemical compound that contains carbon, hydrogen, nitrogen, and oxygen, the four most commonly found elements in organic chemistry and biology.

Preparation and reactions

Isocyanic acid can be made by protonation of the cyanate anion, such as from salts like potassium cyanate, by either gaseous hydrogen chloride or acids such as oxalic acid.

HNCO also can be made by the high-temperature thermal decomposition of cyanuric acid, a trimer.

Isocyanic acid hydrolyses to carbon dioxide and ammonia:

At sufficiently high concentrations, isocyanic acid oligomerizes to give cyanuric acid and cyamelide, a polymer. These species usually are easily separated from liquid- or gas-phase reaction products. Dilute solutions of isocyanic acid are stable in inert solvents, e.g. ether and chlorinated hydrocarbons.

Experiment

An experiment is a procedure carried out to verify, refute, or validate a hypothesis. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated. Experiments vary greatly in goal and scale, but always rely on repeatable procedure and logical analysis of the results. There also exist natural experimental studies.

A child may carry out basic experiments to understand gravity, while teams of scientists may take years of systematic investigation to advance their understanding of a phenomenon. Experiments and other types of hands-on activities are very important to student learning in the science classroom. Experiments can raise test scores and help a student become more engaged and interested in the material they are learning, especially when used over time. Experiments can vary from personal and informal natural comparisons (e.g. tasting a range of chocolates to find a favorite), to highly controlled (e.g. tests requiring complex apparatus overseen by many scientists that hope to discover information about subatomic particles). Uses of experiments vary considerably between the natural and human sciences.

Experimental Products

Experimental Products were an electronic group. Founded in 1982 by Mark Wilde and Michael Gross, they were a Philadelphia-based group.

Career

Experimental Products self-produced the album Prototype in 1982. While it would be their only full album, they released the 2 EPs- Glowing In The Dark in 1984, and Experiment! in 1987. "Glowing" proved irresistible to DJs and became a 1985 dance club chart breakthrough. Today, many DJs and collectors consider it a "classic" synth record. Little else is known about the group other than that they grew to 4 members by 1987. Founding member Mark Wilde died in 1987.

Around the release of "Glowing in the Dark", Mike Simmons played live as a third keyboardist. He contributed songs played live that were never officially recorded. Need specifics on Americana band he played bass with around 2010, that reached #1 on a European chart. Mike Simmons left the group within a year's time. He has operated MARS recording studio for over 25 years.

Experiment (1943 film)

Experiment is a 1943 Czech drama film directed by Martin Frič.

Cast

References

External links