Article - Alchemy: The Emerald Tablet And The Emerald Formula
The Emerald Tablet is an ancient artifact that reveals a profound spiritual technology, which has survived to this day despite centuries ...   » Read the article

Encyclopedia - Calcination: Encyclopedia - Calcination
Calcination is the process of heating a substance to a high temperature, but below its melting or fusing point, to bring about thermal de...   » Read the article

Encyclopedia - Calcium Sulfate: Encyclopedia - Calcium Sulfate
Calcium sulfate is a common laboratory and industrial chemical. In its anhydrous form, it is sold as a laboratory desiccant under the nam...   » Read the article

Encyclopedia - Limekiln: Encyclopedia - Limekiln
A limekiln is a kiln used to produce quicklime by the calcination of limestone (calcium carbonate). The chemical equation for this reacti...   » Read the article

Encyclopedia - Bone Char: Encyclopedia - Bone Char
Bone char, also known as bone black or animal charcoal, is a granular black material produced by calcinating animal bones: the bones are ...   » Read the article

Encyclopedia - Gypsum: Encyclopedia Ii - Gypsum - Chemical Structure
Heating gypsum to between 100°C and 150°C (302°F) partially dehydrates the mineral by driving off exactly 75% of the water contained i...   » Read the article

Encyclopedia - Red Lead: Encyclopedia Ii - Red Lead - Preparation
Lead tetroxide is prepared by calcination of lead(II) oxide in air at about 450 to 480 °C: 6 PbO + O2 → 2 Pb3O4 The resulting materi...   » Read the article

Encyclopedia - Bone China: Encyclopedia - Bone China
Bone china is a British porcelain in which calcined ox bone is added to the body, which gives a very white colour. This was first used by...   » Read the article

Encyclopedia - Umber: Encyclopedia - Umber
Umber is a natural brown clay pigment which contains iron and manganese oxides. The color becomes more intense when calcined (heated), an...   » Read the article

Encyclopedia - Calx: Encyclopedia - Calx
Calx is a residual substance, sometimes in the form of a fine powder, that is left when a metal or mineral combusts or is calcinated due ...   » Read the article

Encyclopedia - Yopo: Encyclopedia Ii - Yopo - Usage
Black beans from these trees are toasted, pulverized and mixed with ashes or calcined shells to make psychedelic snuff called Yopo by Ind...   » Read the article

Encyclopedia - Potassium: Encyclopedia Ii - Potassium - History
Potassium was discovered in 1807 by Sir Humphrey Davy, who derived it from caustic potash (KOH). Potassium was the first metal that was i...   » Read the article

Encyclopedia - Robot Monster: Encyclopedia Ii - Robot Monster - Plot
The plot centers around a group of six humans who are among the only eight survivors of a disaster that wipes out all other members of th...   » Read the article

Encyclopedia - Marine Biology: Encyclopedia Ii - Marine Biology - Reefs
Reefs comprise some of the densest habitats in the world by number of species per area. They can be incredibly diverse, even cold water r...   » Read the article

Encyclopedia - Carbonate: Encyclopedia - Carbonate
Carbonate is an anion with a charge of -2 and an empirical formula of CO32-. For an aqueous solution, carbonate exists in three forms. In...   » Read the article

Encyclopedia - Et-tell: Encyclopedia - Et-tell
Et-Tell is an archaeological site in Israel that is popularly thought to be the Biblical city of Ai. Et-Tell - Location and identificatio...   » Read the article

Encyclopedia - Calcium Oxide: Encyclopedia - Calcium Oxide
General Physical Thermochemistry Safety SI units were used where possible. Unless otherwise stated, standard conditions were used. Discla...   » Read the article

Encyclopedia - Geber: Encyclopedia - Geber
Jabir Ibn Hayyan (full name Abu Musa Jabir Ibn Hayyan Al-Azdi, أبو موسى جابر بن حيان الأزدي; ca.721, Tus, Iran –...   » Read the article

Dictionary - Alchemy: Mysticism Magick Dictionary On Alchemy
ALCHEMY Chemistry is the child of the Alchemists. It's the legacy of "the puffers," those charlatan imitators who tried to f...   » Read the article

Encyclopedia - Geber: Encyclopedia Ii - Geber - Contributions To Chemistry
Jabir is often called "Father of Chemistry", because he was the first scholar to scientifically systematize that science, to whose theory...   » Read the article

Encyclopedia - Oxide: Encyclopedia Ii - Oxide - Current Naming
Oxides can be named after the amount of oxygen atoms in the oxide. Oxides containing only one oxygen are called oxide or monoxide, those ...   » Read the article

Encyclopedia - Et-tell: Encyclopedia Ii - Et-tell - Settlement Phases
The earliest settlement phase known at et-Tell, called "Pre-Urban", coincides with the Early Bronze Age I and lasted from about 3200 BC t...   » Read the article

Encyclopedia - Red Lead: Encyclopedia Ii - Red Lead - Physiological Effects
When breathed in, lead tetroxide irritates lungs. In case of high dose, the victim feels metallic taste in mouth, chest pain, and abdomin...   » Read the article

Encyclopedia - Oxide: Encyclopedia Ii - Oxide - Types Of Oxides
Oxides of more electropositive elements tend to be basic. They are called basic anhydrides; adding water, they may form basic hydroxides....   » Read the article

Encyclopedia - Red Lead: Encyclopedia Ii - Red Lead - Chemical Properties
With iron oxides and with elementary iron, lead tetroxide forms insoluble iron(II) and iron(III) plumbates, which is the basis of the ant...   » Read the article

Encyclopedia - Oxide: Encyclopedia Ii - Oxide - Chemical Properties
Oxides are formed in redox reactions through oxidation in which a reducing agent is allowed to react with molecular oxygen (O2) or oxidiz...   » Read the article

Encyclopedia - Geber: Encyclopedia Ii - Geber - Biography
Jabir Ibn Hayyan was born around 721 in the town of Tus in Khorasan, Persia (present-day Iran). His father, a druggist of the Azd tribe, ...   » Read the article

Encyclopedia - Geber: Encyclopedia Ii - Geber - Writings By Jabir
The writings of Jabir Ibn Hayyan can be divided into four categories: 1. The 112 Books dedicated to the Barmakids, viziers of Caliph Haru...   » Read the article

Encyclopedia - Geber: Encyclopedia Ii - Geber - Contributions To Alchemy
Jabir became an alchemist at the court of Caliph Harun al-Rashid, for whom he wrote the Kitab al-Zuhra ("The Book of Venus", on "the nobl...   » Read the article

Encyclopedia - Et-tell: Encyclopedia Ii - Et-tell - Location And Identification
The site of et-Tell (Arabic for "the ruin-heap") is about 3 km east of the modern village of Beitin (Bethel), atop a watershed plateau ov...   » Read the article

Encyclopedia - Et-tell: Encyclopedia Ii - Et-tell - Excavation History
The first archaeological exploration of et-Tell was undertaken in September 1928 under the supervision of John Garstang. Eight trenches w...   » Read the article

Encyclopedia - Gypsum: Encyclopedia Ii - Gypsum - Occurrence
Gypsum occurs in nature as flattened and often twinned crystals and transparent cleavable masses called selenite. It may also occur silky...   » Read the article

Encyclopedia - Et-tell: Encyclopedia Ii - Et-tell - Comparisons With The Biblical Account
If et-Tell is indeed Ai, this poses a problem for defenders of the literal historicity of the Biblical accounts concerning the origin of ...   » Read the article

Encyclopedia - Gypsum: Encyclopedia Ii - Gypsum - Place Names
Gypsum is also the name of several towns in the United States of America: Gypsum, Kansas Gypsum, Ohio Gypsum, Colorado ... See also:...   » Read the article