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The construction industry is the number one user of phosphogypsum in 2020, with 10.5 Mt used as concrete set retarder and 3.5 Mt used in drywall. [13] It is also used as a chemical feedstock for producing sulfates, and as a soil conditioner similar to regular gypsum. [14]
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Ferrophosphorus can be used instead of zinc powder in some paints and coatings. It has good adhesion, anticorrosive properties, electrical and thermal conductivity, and wear resistance. [7] Ferrophosphorus can be used as a reducing agent to produce sodium or potassium from sodium carbonate or potassium carbonate. [8]
Phosphoryl chloride is used on an industrial scale for the manufacture of phosphate esters (organophosphates). These have a wide range of uses, including as flame retardants ( bisphenol A diphenyl phosphate , TCPP and tricresyl phosphate ), plasticisers for PVC and related polymers ( 2-ethylhexyl diphenyl phosphate ) and hydraulic fluids. [ 11 ]
Red phosphorus can be used as a very effective flame retardant, especially in thermoplastics (e.g. polyamide) and thermosets (e.g. epoxy resins or polyurethanes). The flame retarding effect is based on the formation of polyphosphoric acid. Together with the organic polymer material, these acids create a char that prevents the propagation of the ...
Red phosphorus is often used to prepare chemicals where the P-P bond is retained. Upon room temperature action with sodium chlorite, Na 2 H 2 P 2 O 6 is formed. [17] Red phosphorus can be used as an elemental photocatalyst for hydrogen formation from the water. [18] [7] It has also been researched as a sodium ion battery anode. [19] [2]
Only the index phosphor stripe was used for tracking, and it was the only phosphor that was not covered by an aluminum layer. [327] It was shelved because of the precision required to produce it. [480] [481] It was revived by Sony in the 1980s as the Indextron but its adoption was limited, at least in part due to the development of LCD displays ...
They have also been used in biostable biomedical devices. [ 19 ] Other side groups , such as non-fluorinated alkoxy or oligo -alkyl ether units, yield hydrophilic or hydrophobic elastomers with glass transitions over a broad range from -100 °C to 100 °C. [ 20 ]