اسید فسفریک

اسید فسفریک (Phosphoric acid) که به آن اسید فسفریک (V) یا اورتوفسفریک نیز گفته می شود یکی از اسیدهای معروف و پرمصرف است. اسید فسفریک یک اسید معدنی با فرمول H3PO4 است که حاوی یک اتم فسفر، چهار اتم اکسیژن و سه اتم هیدروژن است. این ترکیب یکی از مهمترین و مفیدترین مواد شیمیایی شناخته شده برای انسان است. فرم خام این اسید از سنگ‌های فسفات استخراج می شود در حالی که شکل خالص تر از فسفر سفید به صورت صنعتی تولید می شود.

اسید فسفریک خالص یک ماده جامد کریستالی سفید با نقطه ذوب ۴۲.۳۵ درجه سانتی گراد است. این ماده وقتی کمتر غلیظ می شود، مایع چسبناک و بی بو با چگالی ۱.۸۸۵ گرم در میلی لیتر است که غیر سمی و غیر فرار است.

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