1.   In the wells of several villages one mile away from the test site the water turned a yellowish color.

2.   The yellowish color is due to oxidation of iron particles in the soils.

3.   But other bakeries seem to prepare katayef to give that yellowish special color.

4.   Del Mese added the compound, unlike pure cyanide which is colorless, gives water a yellowish color, making it easily detectable.