Encyclopedia for Analytics, Laboratory Technology, Chemistry, Process Engineering, Process Technology, Plant Engineering

My watch list

ENCYCLOPEDIA

Search Encyclopedia

chemeurope.com's Encyclopedia of Chemistry provides articles for 64,557 entries from chemistry, pharmaceutics and material sciences as well as related scientific disciplines.

Definitions

Hydrogen Hydrogen (), is the chemical element represented by the symbol H and an atomic number of 1. At standard temperature and pressure it is a colourless, odorless, nonmetal lic, tasteless, highly flammable diatomic gas (H2). Properties With an atomic mass of 1.00794 amu, hydrogen is th more

Nicotinamide adenine dinucleotide

Nicotinamide adenine dinucleotide Nicotinamide adenine dinucleotide, abbreviated NAD+, is a coenzyme found in all living cell s. The compound is a dinucleotide, since it consists of two nucleotide s joined through their phosphate groups: with one nucleotide containing an adenosine ring, and the more

Isaac Newton

Isaac Newton Sir Isaac Newton FRS () (4 January 1643 – 31 March 1727 ) [ OS : 25 December 1642 – 20 March 1727 ] was an English physicist , mathematician , astronomer , natural philosopher , and alchemist . His treatise Philosophiæ Naturalis Principia Mathematica , published in 1687, des more

Slate industry in Wales

Slate industry in Wales , Wales, about 1910. The slate industry in Wales began during the Roman period when slate was used to roof the fort at Segontium , now Caernarfon . The slate industry grew slowly until the early 18th century, then expanded rapidly until the late 19th century, at which t more

Gas tungsten arc welding

Gas tungsten arc welding Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding, is an arc welding process that uses a nonconsumable tungsten electrode to produce the weld . The weld area is protected from atmospheric contamination by a shielding gas (usually an inert more

Chemical elements