ACS reagent
200
98%98.0-102.0% (ACS specification)
powder
≤0.02% insol. dil. HCl
carbonate (CO32-): passes testchloride (Cl-): ≤0.005%nitrate (NO3-): ≤0.005%
Fe: ≤0.001%K: ≤0.005%Mg: ≤0.02%Na: ≤0.02%Sr: ≤0.05%heavy metals: ≤0.002% (by ICP-OES)
O.O.[Ca++].[O-]S([O-])(=O)=O
1S/Ca.H2O4S.2H2O/c;1-5(2,3)4;;/h;(H2,1,2,3,4);2*1H2/q+2;;;/p-2
PASHVRUKOFIRIK-UHFFFAOYSA-L
13 - Non Combustible Solids
WGK 1