chemical reaction

Chemical Reaction

The chemical reaction campaign has come to an end now that the new European Chemicals law, REACH, has come into force.

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another Classically, chemical reactions encompass changes that strictly involve the motion of electrons in the forming and breaking of chemical bonds between atoms, and can often be described by a chemical equation.

However, now the law is in place there is much to be done to ensure that it really does protect us from the worst chemicals; the following web sites can tell you more about what is happening now.

ChemTrust

Greenpeace

Chemicals Health Monitor Project

International Chemicals Secretariat

The "substitute it now" campaign against the worst chemicals

WWF

anhydrous sodium sulfate Na2SO4

anhydrous sodium sulfate [INORG CHEM]Na2SO4 Water-soluble, white crystals with

bitter, salty taste;melts at 888 C; used in themanufacture of glass, paper, pharmaceu-

ticals, and textiles, and as an analytical reagent

anhydrous sodium carbonate

anhydrous sodium carbonate See soda ash

anhydrous plumbic acid

anhydrous plumbic acid See lead dioxide

anhydrous phosphoric acid

anhydrous phosphoric acid See phosphoric anhydride

anhydrous hydrogen chloride

anhydrous hydrogen chloride [INORG CHEM] HCl Hazardous, toxic, colorless gas used

in polymerization, isomerization, alkylation, nitration, and chlorination reactions;

becomes hydrochloric acid in aqueous solutions

anhydrous ammonia

anhydrous ammonia [INORG CHEM] Liquid ammonia, a colorless liquid boiling at

33.3 C

anhydrous ferric chloride

anhydrous ferric chloride See ferric chloride

anhydrous alcohol

anhydrous alcohol See absolute alcohol

ammonium vanadate

ammonium vanadate [INORG CHEM]NH4VO3 A white to yellow, water-soluble, crystal

line powder; used in inks and as a paint drier and textile mordant

ammonium sulfide

ammonium sulfide [INORG CHEM] (NH4)2S Yellow crystals, stable only when dry and

below 0 C; decomposes on melting; soluble in water and alcohol; used in photo-

graphic developers and for coloring brasses and bronzes

ammonium sulfate

ammonium sulfate [INORG CHEM] (NH4)2SO4 Colorless, rhombic crystals which melt at

140 C and are soluble in water

ammonium sulfamate

ammonium sulfamate [INORG CHEM]NH4OSO2NH2 White crystals with a melting point

of 130 C; soluble in water; used for flameproofing textiles, in electroplating, and as

an herbicide to control woody plant species.

ammonium silicofluoride

ammonium silicofluoride See ammonium fluosilicate

ammonium salt

ammonium salt [INORG CHEM] A product of a reaction between ammonia and various acids; examples are ammonium chloride and ammonium nitrate

ammonium phosphate

ammonium phosphate [INORG CHEM] (NH4)2HPO4 A salt of ammonia and phosphoric

acid that forms white monoclinic crystals, which are soluble in water; used as a

fertilizer and fire retardant

ammonium persulfate

ammonium persulfate [INORG CHEM] (NH4)2S2O8 White crystals which decompose on

melting; soluble in water; used as an oxidizing agent and bleaching agent, and in

etching, electroplating, food preservation, and aniline dyes

ammonium perchlorate

ammonium perchlorate [INORG CHEM]NH4ClO4 A salt that forms colorless or white

rhombic and regular crystals, which are soluble in water; it decomposes at 150 C,

and the reaction is explosive at higher temperatures

ammonium nitrate

ammonium nitrate [INORG CHEM]NH4NO3 A colorless crystalline salt; very insensitive
and stable high explosive; also used as a fertilizer

ammonium molybdate

ammonium molybdate [INORG CHEM] (NH4)2MoO4 White, crystalline salt used as an

analytic reagent, as a precipitant of phosphoric acid, and in pigments.