| Appearance (Colour) | White |
| Appearance (Form) | Crystalline powder |
| Solubility (Turbidity) 10% aq. solution | Clear |
| Solubility (Colour) 10% aq. solution | Colourless |
| pH (10% aq. solution) | ~5 |
| Sulphated Ash | max. 0.05% |
| Chloride (CI) | max. 0.005% |
| Sulphate (SO4) | max. 0.005% |
| Iron (Fe) | max. 0.0002% |
| Heavy Metals (Pb) | max. 0.0001% |
| Copper (Cu) | max. 0.00005% |
| Arsenic (As) | max. 0.0001% |
| Nitrogen Compounds (N) | max. 0.02% |
| Acidity | max. 0.25ml N% |
| Specific rotation [α] | +52° to +52.8° (C = 10, water) |
| Water (KF) | 4.8 - 5.4% |
| Absorbance (A) of 1% aq. solution in a 1cm cell v/s H2O | |
| @210-220nm | max. 0.25 |
| @270-300nm | max. 0.07 |
![Lactose Monohydrate extrapure AR](javascript:showProductImage("%2Fuser_img%2Fproducts%2F25957%2F25957%20-%20Lactose%20Monohydrate%20Sisco%20Research.jpg") "Lactose Monohydrate extrapure AR")