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1 day ago · Saltpetre produced from French nitre beds required sodium carbonate, which could be isolated from seaweed collected on the coasts of Normandy and Brittany. To isolate the sodium carbonate, seaweed was burned and the ash washed with water. The remaining waste was destroyed by adding sulfuric acid. Courtois once added excessive sulfuric acid and ...
- Iodine (Medical Use)
Iodine is a chemical element with many uses in medicine,...
- Standard Conditions
Definitions. In chemistry, IUPAC changed its definition of...
- Mineral Nutrient
Carbonic anhydrase, an enzyme that requires zinc (gray...
- Iodine Deficiency
Iodine deficiency is a lack of the trace element iodine, an...
- Iodine (Medical Use)
1 day ago · Definition and applicable elements Unless otherwise noted, this article describes the most stable form of an element in ambient conditions. [b] While arsenic (here sealed in a container to prevent tarnishing) has a shiny appearance and is a reasonable conductor of heat and electricity, it is soft and brittle and its chemistry is predominately nonmetallic. Nonmetallic chemical elements are ...
5 hours ago · Tin. Tin is a chemical element; it has symbol Sn (from Latin stannum) and atomic number 50. A silvery-colored metal, tin is soft enough to be cut with little force, [10] and a bar of tin can be bent by hand with little effort. When bent, the so-called "tin cry" can be heard as a result of twinning in tin crystals.
- silvery-white, β (beta); gray, α (alpha)
- group 14 (carbon group)
- 50
- period 5
1 day ago · Diazepam does not possess any chiral centers in its structure, but it does have two conformers. The two conformers mentioned were the 'P'-conformer and 'M'-conformer. Diazepam is an equimolar mixture and it was shown through CD spectra in serum protein solutions, that the 'P'-conformer is preferred by α1-acid glycoprotein binding.
- C₁₆H₁₃ClN₂O
- Valium, Vazepam, Valtoco, others
- AU: C
