Phosphoric acid ndi yachiwiri kokha kwa sulfuric acid ngati mafakitale a asidi wa mafakitale komanso nthawi zonse mankhwala okwanira 10 omwe amagwiritsidwa ntchito padzikoli. Phosphareteere amagwiritsidwa ntchito ngati omanga ndi ofewetsa madzi. Womanga ndi chinthu chowonjezeredwa ku sopo kapena chotchinga chikuwonjezera mphamvu zawo zoyeretsa.
Phosphoric acid imagwiritsidwa ntchito ngati yapakati yopanga nyama zowonjezera, mankhwala othandizira mankhwala, mankhwala achitsulo, othandizira payekha, komanso kusamalira mwayekha ngati mano. Amagwiritsidwa ntchito ngati chothandizira mu mafuta a petroleum ndi polymer. Phosphoricocid imagwiritsidwa ntchito mu chakudya ngati chosungira, acilant, ndi othandizira kukonzera; Amakhala ndi carbonation monga peca cola ndi pepsi, kununkhira kwa tangy. Phosphoric acid imagwiritsidwa ntchito ngati Artust Retaver ndi Woyera Walala. Naval Jelly ndi pafupifupi 25% phosphoric acid. Zogwiritsa ntchito zina phosphoric acid zimaphatikizapo kuwongolera mphamvu mugalasi, chojambulidwa cholembera, kufulumira kwa mphira, ndi madoko.
Phosphoric acid (H3po4) ndiofunikira kwambiri oxphocid wa phosphorous ndi ntchito yake yayikulu ndi yopanga feteleza.
Mkati mwa thupi la munthu, phosphate ndiye gulu lalikulu la phosphorous. Phosphate ndi mankhwala osokoneza bongo ndipo mchere wa phosphoric acid. Itha kupanga malo opangidwa ndi anthu okhala ndi mitundu yosiyanasiyana ndipo izi ndizofunikira mu njira zambiri zazomwe zimachitika. Phusphate ali ndi mtundu wamphamvu po43-. Ndimonukyu ya tetradel, pomwe atose a atomu a phosphorous imazunguliridwa ndi ma atomu anayi a oxygen.
Mwa njira zachilengedwe, phosphate nthawi zambiri zimapezeka ngati ion yaulere (itorganic phosphate) kapena monga ester atatha kutero ndi mankhwala opangira nyama (nthawi zambiri amatchulidwa ngati mabodza ochita chilengedwe). Inoganic phosphate (makamaka kutanthauza pi) ndi chisakanizo cha HPO22- ndi H2PO4- pa PH.