Thursday 1 September 2011

Jabir Bin Hayyan Biography

Jabir Ibn Haiyan, the alchemist Geber of the Middle Ages, is generally known as The Father Of Chemistry. Abu Musa Jabir Ibn Hayyan, sometimes called al-Harrani and al-Sufi, was the son of the druggist (Attar). The precise date of his birth is the subject of some discussion, but it is established that he practised medicine and alchemy in Kufa around 776 C.E. He is reported to have studied under Imam Ja'far Sadiq and the Ummayed prince Khalid Ibn Yazid. In his early days, he practised medicine and was under the patronage of the Barmaki Vizir during the Abbssid Caliphate of Haroon al-Rashid. He shared some of the effects of the downfall of the Barmakis and was placed under house arrest in Kufa, where he died in 803 C.E.



Jabir's major contribution was in the field of chemistry. He introduced experimental investigation into alchemy, which rapidly changed its character into modern chemistry. On the ruins of his well-known laboratory remained after centuries, but his fame rests on over 100 monumental treatises, of which 22 relate to chemistry and alchemy. His contribution of fundamental importance to chemistry includes perfection of scientific techniques such as crystalization, distillation, calcination, sublimation and evaporation and development of several instruments for the same. The fact of early development of chemistry as a distinct branch of science by the Arabs, instead of the earlier vague ideas, is well-established and the very name chemistry is derived from the Arabic word al-Kimya, which was studied and developed extensively by the Muslim scientists.



Perhaps Jabir's major practical achievement was the discovery of mineral and others acids, which he prepared for the first time in his alembic (Anbique). Apart from several contributions of basic nature to alchemy, involving largely the preparation of new compounds and development of chemical methods, he also developed a number of applied chemical processes, thus becoming a pioneer in the field of applied science. His achievements in this field include preparation of various metals, development of steel, dyeing of cloth and tanning of leather, varnishing of water-proof cloth, use of manganese dioxide in glass-making, prevention of rusting, letterring in gold, identification of paints, greases, etc. During the course of these practical endeavours, he also developed aqua regia to dissolve gold. The alembic is his great invention, which made easy and systematic the process of distillation. Jabir laid great stress on experimentation and accuracy in his work.



Based on their properties, he has described three distinct types of substances. First, spirits i.e. those which vaporise on heating, like camphor, arsenic and ammonium chloride; secondly, metals, for example, gold, silver, lead, copper, iron, and thirdly, the category of compounds which can be converted into powders. He thus paved the way for such later classification as metals, non-metals and volatile substances.



Although known as an alchemist, he did not seem to have seriously pursued the preparation of noble metals as an alchemist; instead he devoted his effort to the development of basic chemical methods and study of mechanisms of chemical reactions in themselves and thus helped evolve chemistry as a science from the legends of alchemy. He emphasised that, in chemical reactions, definite quantities of various substances are involved and thus can be said to have paved the way for the law of constant proportions.



Jabir Ibn Hayan…Priorities and Achievements:



Jabir conducted so many laboratory experiments, some of which were already known before his time and some of which were new experiments. Among the methods that he used were evaporation, distillation, crystallization, sublimation, filtration, melting, condensation, and dissolution. He studied the properties of some elements accurately and thus discovered the complex silver ammonium ion.



He prepared many chemical substances, he was the first to prepare sulfuric acid from alum by distillation, he also prepared mercury oxide, nitric acid, which is known as silver water and he used to call it hydrolyzing water or water of fire. He also prepared hydrochloric acid, which is called the spirit of salt. He was the first to discover caustic soda, as well as the first to retrieve silver nitrate, which he called the rock of hell. He also prepared mercury chloride (Al Sulaymany), nitrohydrochloric acid (the royal water) which was named thus because it could dissolve gold, the king of metals.



He was the first to notice the precipitates of silver chloride upon adding table salt to silver nitrate. He also used alum to make dyes on cloth permanent. He prepared certain substances that can waterproof clothes; these substances are aluminum salts that are derived from organic salts that contain hydrocarbon molecules. He concluded that fire adds a blue color to copper, while copper adds a green color to fire. He was the first to separate gold from silver using an acid, and he explained in detail the method of preparing arsenic, purifying metals and dying cloth.



He was the first to use the sensitive balance and the extremely accurate weights in his laboratory experiments; he weighed amounts that are less than 1/100 pounds. He was the one who prepared potassium carbonate, sodium carbonate, alkaline lead and antimony. He also used manganese dioxide to remove colors in the glass industry. He also crystallized the theory that states that a chemical reaction is achieved by a combination between the atoms of the reacting elements, and he gave as an example for that mercury and sulpher, when they unite to form a new substance. He used to carry out most of his experiments in a special laboratory that was discovered in the ruins of the city of Al-Kufa at the end of the twelfth Hijri century (the eighteenth century A.C.)




Jabir Ibn Haiyan, (Geber) the alchemist of the Middle Ages, known as the father of chemistry

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