| Bulk industrial supply | Technical grade | Anhydrous K3PO4 | 7778-53-2 212.27 g/mol | ≥ 95.0% | 900–1,500 | 25 kg woven bags; 500–1,000 kg FIBC bags | Industrial buffers, detergents, water treatment, chemical processing |
| Bulk industrial supply | High-purity technical grade | Anhydrous K3PO4 | 7778-53-2 212.27 g/mol | ≥ 98.0% | 1,200–1,900 | 25 kg PE-lined bags; 500 kg and 1,000 kg FIBC bags | Synthesis, specialty chemicals, high-alkalinity formulations |
| Food-ingredient supply | Food grade, E340(iii) | Anhydrous K3PO4 | 7778-53-2 212.27 g/mol | Usually ≥ 98.0% | 1,100–1,800 | 20 or 25 kg food-contact bags; palletized cartons | Acidity regulator, emulsifying salt, stabilizer, food processing |
| Food-ingredient supply | Food grade, low-heavy-metal specification | Anhydrous K3PO4 | 7778-53-2 212.27 g/mol | ≥ 98.0%; heavy metals controlled by specification | 1,500–2,300 | 20–25 kg moisture-resistant, food-contact bags | Beverage systems, dairy products, processed foods and premixes |
| Laboratory chemical supply | Reagent grade | Anhydrous K3PO4 | 7778-53-2 212.27 g/mol | Typically ≥ 99.0% | 2,500–6,000 | 100 g, 500 g, 1 kg and 2.5 kg laboratory bottles | Analytical reagents, buffer preparation, laboratory synthesis |
| Laboratory chemical supply | ACS-style reagent grade | Anhydrous K3PO4 | 7778-53-2 212.27 g/mol | Assay commonly ≥ 99.0%; tighter impurity limits | 4,000–8,000 | 250 g, 500 g and 1 kg sealed bottles | Research, chromatography, organic and inorganic synthesis |
| Specialty supply | Pharmaceutical or compendial grade | Anhydrous K3PO4 | 7778-53-2 212.27 g/mol | Often ≥ 99.0%; compendial testing may apply | 4,000–8,500 | 25 kg validated liners; smaller controlled-environment packs | Pharmaceutical manufacturing and controlled-process applications |
| Bulk industrial supply | Monohydrate grade | K3PO4·H2O | CAS commonly listed as 27176-10-9 230.26 g/mol | Usually ≥ 98.0% | 1,000–1,700 | 25 kg PE-lined bags; 500–1,000 kg FIBC bags | Formulations where controlled hydration and handling are preferred |
| Small-quantity online supply | General-purpose laboratory grade | Anhydrous K3PO4 | 7778-53-2 212.27 g/mol | 95.0–99.0%, depending on specification | 8–25 USD/kg | 100 g to 5 kg resealable bottles or foil-lined pouches | Education, research laboratories and pilot-scale testing |
| Custom specification supply | Low-moisture or particle-size-controlled grade | Anhydrous K3PO4 | 7778-53-2 212.27 g/mol | ≥ 98.0%; moisture and particle size negotiated | 1,600–3,200 | 25 kg bags, lined drums or customized FIBC packaging | Catalysis, specialty formulations, dry blending and process optimization |