POTASSIUM SULPHID
\pətˈasi͡əm sˈʌlfɪd], \pətˈasiəm sˈʌlfɪd], \p_ə_t_ˈa_s_iə_m s_ˈʌ_l_f_ɪ_d]\
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potassium hydrosulphid, HKS.
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potassium trisulphid, a brownish crystalline substance, K2S3, soluble in water. It enters into the composition of potassa sulphurata.
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potassium tetrasulphid, K2S4.
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potassium pentasulphid, a reddish brown mass, K2S5, easily soluble in water and of bitter, alkaline taste. See also potassa sulphurata, under potassa.
By Smith Ely Jelliffe
Word of the day
Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.