- Haloforms are the trihalomethanes . They are called fluoroform (X=F), chloroform (X=Cl), bromoform (X=Br), and iodoform (X=I).
Haloforms are useful as a source of dihalocarbenes, which are synthetically valuable intermediates. The detection of haloforms and other organic chlorination products is vital for public health. They may be formed through haloform reaction with drinking water impurities, such as amino acids and humic substances, as a result of drinking water chloridation. If, instead of chlorine, chlorine dioxide is used for drinking water choridation, the occurence of haloform reaction may be minimized. In addition, haloforms that have already been formed may be removed from drinking water.