1. Refractories, Ceramics and Building materials Department; National Research Centre(NRC), 33 El Behooth St., Dokki; Giza 12622 Egypt
2. Department of Narcotics and Poisons Pharmacology and Toxicology; National Research Centre(NRC), 33 El Behooth St., Dokki; Giza 12622 Egypt
3. Glass Research Department; National Research Centre(NRC), 33 El Behooth St., Dokki; Giza 12622 Egypt