Preparation of metal organopolyphosphate coordination of complexes

A process for preparing metal organopolyphosphate coordination complexes comprising contacting a metal alkoxide selected from the group consisting of the aluminum, beryllium, magnesium, zinc, barium, gallium, indium, thallium, iron, tin and titanium alkoxides of

• (a) C.sub.1-5 alkanols or haloalkanols;
• (b) glycol ethers of the formula ##STR2## where R.sub.1 is independently each occurrence hydrogen, methyl, or halomethyl;
• R.sub.2 is independently C.sub.1-4 alkyl or phenyl, and n is a number from 1 to 5;
• and
• (c) C.sub.1-10 alkanolamines of the formula R.sub.3 -N-(Z).sub.2 where R.sub.3 is C.sub.1-10 hydroxyalkyl, and Z is each occurrence hydrogen, C.sub.1-3 alkyl or hydroxyalkyl,
• with a slurry comprising a mixture of phosphorus pentoxide in an inert liquid organic medium in a ratio of alkoxy-functionality to phosphorus of 0.5:1 to 1:1, at a temperature less than 150.degree. C.