In summary, vaccination requirements that reach more children through a broad range of facilities, that have more requirements for receiving an exemption, that require parental documentation of exemption requests, and that are implemented with strong enforcement and monitoring may help promote higher rates of vaccination coverage, and in turn, lower rates of VPDs.
Alum /ËaelÉm/ ËÃ¦lÉm is both a specific chemical compound and a class of chemical. Compounds the specific compound is the hydrated potassium aluminium (sulfate potassium) alum with the Formula K (AL so) 4 Â·2 12 H. 2o
Usually, when you hear about alum it is in reference to potassium alum, which is the hydrated form of potassium aluminum sulfate and has the chemical formula KAl(SO 4) 2 Â·12H 2 O. However, any of the compounds with the empirical formula AB(SO 4) 2 Â·12H 2 O are considered to be an alum.