Phosphoric acid, a colorless and odorless crystalline solid or syrupy liquid when concentrated, is widely classified by purity and application scenarios.
The most common grades include industrial grade (typically 75%, 80%, 85% concentration), food grade, and electronic grade. Industrial-grade phosphoric acid, with a purity range of 75%-85%, is a key raw material in fertilizer production-especially for manufacturing compound fertilizers and ammonium phosphate, which enhance crop root development and fruit quality. It also serves in metal surface treatment, where it forms a protective phosphate film to prevent corrosion. Food-grade phosphoric acid, adhering to strict safety standards (e.g., heavy metal content ≤ 10 ppm), acts as an acidity regulator in beverages, baking products, and dairy items, improving flavor stability. Electronic-grade phosphoric acid, with ultra-high purity (99.99%+), is critical for semiconductor wafer cleaning and etching processes.
For detailed specifications and quotations, please contact:
Kitty Liu | Sales Manager,
Dongguan Weiqi Chemical Co., Ltd.
📱 Cel/Wechat: +86 138 2440 4576
📧 Email: kitty@weiqichem.com
Hot Tags: Phosphoric Acid Food-Grade, China Phosphoric Acid Food-Grade manufacturers, suppliers, factory, citric acid phosphoric acid, concentrated phosphoric acid, hydrogen peroxide stabilizer phosphoric acid, metaphosphoric acid, molybdate phosphoric acid, nitric phosphoric acid