Our mainly products:Sodium carbonate,Sodium bicarbonate,Ammonium bicarbonate,Aluminum sulfate,Calcium chloride,Magnesium chloride,Sodium metabisulfite,Sodium nitrite,Potassium sulfate,PAC ,Caustic soda ,Phosphoric Acid ,Acetic acid ,PVC Resin and so on. We can supply best quality, prompt deliver...
It is recorded that some relatively pure organic substances were prepared in ancient China, such as gallic acid (982-992), aconitine (1522 years ago), mannitol (1037-1101), etc; in the late 16th century, ether, Ethyl nitrate, ethyl chloride and so on were prepared in Western Europe. ...