py·ro·phos·pho·ric acid /-fɑsˈfɔrɪk, ˈfɑr; ˈfɑsf(ə)rɪk-/
py·ro·phos·pho·ric acid /-fɑsˌfɔrɪk, ˌfɑr; ˌfɑsf(ə)rɪk-/ 名詞 焦磷酸
pyrophosphoric acid n : a solid acid formed by reactions of orthophosphoric acid