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R-Phrases

R-phrases (short for Risk Phrases ) are defined in Annex III of European Union Directive 67/548/EEC : Nature of special risks attributed to dangerous substances and preparations . The list was consolidated and republished in Directive 2001/59/EC , where translations into other EU languages may be found. These risk phrases are used internationally not just in Europe and there is an ongoing effort towards complete international harmonization. (Note: missing R-number combinations indicate phrases that were deleted or replaced by another phrase.) Risk Phrases

Dangerous Substances Directive (67/548/EEC)

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The Dangerous Substances Directive (as amended) is one of the main European Union laws concerning chemical safety. It was made under Article 100 (Art. 94 in a consolidated version) of the Treaty of Rome . By agreement it is also applicable in the EEA , and compliance with the Directive will ensure compliance with the relevant Swiss laws. Scope of the Directive The Directive applies to pure chemicals and to mixtures of chemicals ( preparations ) that are placed on the market in the European Union , therefore it does not apply directly to substances created purely for research purposes. Additional rules concerning preparations are contained in the Dangerous Preparations Directive (1999/45/EC): these are very similar to the rules contained in the Dangerous Substances Directive 67/548/EEC. The Directive does not apply to the following groups of substances and preparations (Art. 1): Cosmetics , which are covered by the Cosmetics Directive Foodstuffs for humans or animal...

The Nobel Prize in Chemistry 2010

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Richard F. Heck ---- ---- Ei-ichi Negishi ------ ---- Akira Suzuki The Nobel Prize in Chemistry 2010 was awarded jointly to Richard F. Heck, Ei-ichi Negishi and Akira Suzuki "for palladium-catalyzed cross couplings in organic synthesis" .

Chemistry Worth £250bn to UK Per Year

One in every five pounds in the UK economy is dependent on developments in chemistry research, according to a new report commissioned by the Royal Society of Chemistry (RSC) and the Engineering and Physical Sciences Research Council (EPSRC). Industries reliant on chemistry contributed an astonishing £258 billion to the UK economy in 2007 - equivalent to 21% of UK GDP and supported six million jobs, accounting for at least 15% of the UK's exported goods and attracting significant inward investment.

NFPA 704

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NFPA 704 is a standard maintained by the U.S.-based National Fire Protection Association. It defines the colloquial "fire diamond" used by emergency personnel to quickly and easily identify the risks posed by nearby hazardous materials. This is necessary to help determine what, if any, speciality equipment should be used, procedures followed, or precautions taken during the first moments of an emergency response. Symbolism

Sulphuric Acid

A molecule of Sulphuric Acid, H2SO4, consists of two atoms of hydrogen, one atom of sulphur and four atoms of oxygen Sulphuric acid is a colourless viscous corrosive oily liquid, which has Melting Point : 10.3 degC Boiling Point : 338 degC Formula weight 98.08 Specific gravity or density 1.94 Flash point none

Nitric Acid

Properties of Nitric Acid Nitric Acid displays the properties of a strong acid and it is a powerful oxidising agent. Reactions of Nitric Acid