Asidi wa phosphoric ndi wachiwiri kwa sulfuric acid monga asidi wa mafakitale ndipo nthawi zonse amakhala m'magulu 10 apamwamba omwe amagwiritsidwa ntchito padziko lonse lapansi.Phosphates ankagwiritsidwa ntchito ngati zomanga ndi zofewetsa madzi.Womanga ndi chinthu chomwe chimawonjezeredwa ku sopo kapena zotsukira kuti ziwonjezere mphamvu zawo zoyeretsa.
Phosphoric acid imagwiritsidwa ntchito ngati wapakatikati popanga zowonjezera zakudya zanyama, mankhwala ochizira madzi, mankhwala opangira zitsulo, opangira ma etching, ndi zinthu zosamalira anthu monga mankhwala otsukira mano.Amagwiritsidwa ntchito ngati chothandizira pamakampani amafuta ndi ma polima.Phosphoricacid imagwiritsidwa ntchito muzakudya monga chosungira, acidulant, ndi kukoma kowonjezera;imapangitsa zakumwa za carbonated monga Coca Cola ndi Pepsi, kuwapatsa kukoma kokoma.Phosphoric acid imagwiritsidwa ntchito ngati chochotsa zowononga komanso chotsuka zitsulo.Naval Jelly ndi pafupifupi 25% phosphoric acid.Ntchito zina za phosphoric acid zikuphatikiza kuwongolera mawonekedwe pakupanga magalasi, utoto wa nsalu, latexcoagulation ya rabara, ndi simenti zamano.
Phosphoric acid (H3PO4) ndi oxoacid wofunika kwambiri wa phosphorous ndipo ntchito yake yaikulu ndi kupanga feteleza.
Mkati mwa thupi la munthu, phosphate ndiye chinthu chachikulu chomwe chimakhala ndi phosphorous.Phosphate ndi organic compound ndipo ndi mchere wa phosphoric acid.Ikhoza kupanga esters organic ndi mitundu yosiyanasiyana ya mankhwala ndipo izi ndi zofunika muzochitika zambiri zamoyo.Phosphate ili ndi njira yoyeserera PO43-.Ndi molekyulu ya tetrahedral, pomwe atomu ya phosphorous yapakati imazunguliridwa ndi maatomu anayi a okosijeni.
M'zinthu zachilengedwe, phosphate nthawi zambiri imapezeka ngati ion yaulere (inorganic phosphate) kapena ngati ester pambuyo pochita zinthu ndi organic compounds (nthawi zambiri amatchedwa organic phosphates).Inorganic phosphate (yomwe imatchedwa Pi) ndi chisakanizo cha HPO42- ndi H2PO4- pa physiological pH.