Larutan Orto-Asam fosfor dengan konsentrasi 85%, atau disebut juga : o-Phosphoric acid, Orthophosphoric acid, EMSURE®, sangat cocok digunakan untuk berbagai macam pengujian terstandar maupun aktivitas laboratorium lainnya. EMSURE® menyediakan produk dengan spesifikasi terbaik di seluruh dunia. Selain itu, EMSURE® juga dapat memenuhi kebutuhan reagen sesuai dengan standar ACS, the European Pharmacopoeia (Reag. Ph Eur) serta ISO. Berikut informasi teknis produk yang harus menjadi perhatian sebelum pemakaian.
| Informasi | Keterangan |
| Titik didih | 158 °C |
| Densitas | 1.71 g/cm3 |
| Titik leleh | 21 °C |
| pH | < 0.5 |
| Tekanan vapor | 2 hPa, pada suhu 20 °C |
| Viskositas kinematik | 30.5 mm2/s, pada suhu 20 °C |
| Assay (alkalimetric) | ≥ 85.0 % |
| Identity | passes test |
| Appearance of solution | passes test |
| Color | ≤ 10 Hazen |
| Chloride (Cl) | ≤ 2 ppm |
| Fluoride (F) | ≤ 1 ppm |
| Nitrate (NO₃) | ≤ 3 ppm |
| Phosphite and Hypophosphite (as H₃PO₃) | ≤ 20 ppm |
| Hypophosphite, phosphite | passes test |
| Heavy metals (as Pb) | ≤ 10 ppm |
| Sulfate (SO₄) | ≤ 20 ppm |
| As (Arsenic) | ≤ 0.5 ppm |
| Ca (Calcium) | ≤ 20 ppm |
| Cd (Cadmium) | ≤ 0.5 ppm |
| Co (Cobalt) | ≤ 0.5 ppm |
| Cu (Copper) | ≤ 0.5 ppm |
| Fe (Iron) | ≤ 10 ppm |
| K (Potassium) | ≤ 5 ppm |
| Mg (Magnesium) | ≤ 5 ppm |
| Mn (Manganese) | ≤ 0.5 ppm |
| Na (Sodium) | ≤ 200 ppm |
| Ni (Nickel) | ≤ 1.0 ppm |
| Pb (Lead) | ≤ 0.5 ppm |
| Sb (Antimony) | ≤ 5 ppm |
| Zn (Zinc) | ≤ 2 ppm |
| Matter precipitated by ammonia | passes test |
| Volatile acids (as Acetic acid) | ≤ 10 ppm |
| Substances reducing potassium permanganate (as O) | ≤ 10 ppm |
| Insoluble matter | ≤ 10 ppm |
| Penyimpanan | Simpan pada suhu diatas 15 °C |