Phosphor - gypsum is the industrial waste discharged from wet process phosphorous acid production.

磷石膏为湿法生产磷酸排放的工业废渣,因含可溶磷杂质,不能直接使用.

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Feasibility of preparing activated carbon from bamboo knot with phosphorous acid by microwave radiation was studied.

研究了以竹节废料为原料,采用微波辐射磷酸法制备活性炭的可行性.

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Phosphorous acid is the acid anhydride of orthophosphoric acid ( H 3 PO 4 ).

五氧化二磷是正磷酸 ( H3PO4 ) 的酸酐.

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