Verzending 24–48 u • Levering in de hele EU • Veilige chemieverpakking
A beige natural dye which achieves its active form, the hemalum, by oxidation (e.g. with sodium iodate) and treating with a metallic mordant (e.g. alum). Hemalum lakes stain cell nuclei blue.
| Appearance | light-brown powder |
| Maximum absorption | ~292 nm in methanol |
| pH value (1 % in H2O) | 5.0-7.0 |




Verzending 24–48 u • Levering in de hele EU • Veilige chemieverpakking
