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Sodium sulfide is a chemical compound with the formula Na 2 S, or more commonly its hydrate Na 2 S·9H 2 O.Both the anhydrous and the hydrated salts in pure crystalline form are colorless solids, although technical grades of sodium sulfide are generally yellow to brick red owing to the presence of polysulfides and commonly supplied as a crystalline mass, in flake form, or as a fused solid.
The sulfide is converted to an oxide by roasting. The product is further purified by vaporizing the volatile antimony(III) oxide, which is recovered. [30] This sublimate is often used directly for the main applications, impurities being arsenic and sulfide. [61] [62] Antimony is isolated from the oxide by a carbothermal reduction: [60] [61] 2 ...
Sodium sulfide – Na 2 S; Sodium sulfite – Na 2 SO 3; Sodium tartrate – C 4 H 4 Na 2 O 6; Sodium tellurite – Na 2 TeO 3; Sodium tetrachloroaluminate – NaAlCl 4; Sodium tetrafluoroborate – NaBF 4; Sodium thioantimoniate – Na 3 (SbS 4)·9H 2 O; Sodium thiocyanate – NaSCN; Sodium thiosulfate – Na 2 S 2 O 3; Sodium tungstate – Na ...
Sulfonamide is a functional group (a part of a molecule) that is the basis of several groups of drugs, which are called sulphonamides, sulfa drugs or sulpha drugs. The original antibacterial sulfonamides are synthetic (nonantibiotic) antimicrobial agents that contain the sulfonamide group. Some sulfonamides are also devoid of antibacterial ...
Lead poisoning, also known as plumbism and saturnism, is a type of metal poisoning caused by lead in the body. [2] Symptoms may include abdominal pain, constipation, headaches, irritability, memory problems, infertility, and tingling in the hands and feet. [1] It causes almost 10% of intellectual disability of otherwise unknown cause and can ...
Chemical pulping involves dissolving lignin in order to extract the cellulose from the wood fiber. The different processes of chemical pulping include the Kraft process, which uses caustic soda and sodium sulfide and is the most common; alternatively, the use of sulfurous acid is known as the sulfite process, the neutral sulfite semichemical is treated as a third process separate from sulfite ...
Cinnabar (/ ˈsɪnəˌbɑːr /; from Ancient Greek κιννάβαρι (kinnábari)), [7] or cinnabarite (/ ˌsɪnəˈbɑːraɪt /), also known as mercurblende is the bright scarlet to brick-red form of mercury (II) sulfide (HgS). It is the most common source ore for refining elemental mercury and is the historic source for the brilliant red or ...
Mercury poisoning is a type of metal poisoning due to exposure to mercury. [3] Symptoms depend upon the type, dose, method, and duration of exposure. [3] [4] They may include muscle weakness, poor coordination, numbness in the hands and feet, skin rashes, anxiety, memory problems, trouble speaking, trouble hearing, or trouble seeing. [1]