Sulfides arsenic sulfide

Synonyms arsenic trisulfide arsenic sulfide arsenous sulfide king s gold king s yellow orpiment yellow arsenic sulfide... 

Cobalt is obtained from its ores, which are mostly sulfide, arsenic sulfide or oxide in nature. The finely ground ore is subjected to multistep processing, depending on the chemical nature of the ore. 

Arsenic Pentasuifide. See under Sulfides Arsenic Sulfides. See under Sulfides Arsenic Tribromide. See under Bromides Arsenic Trichloride. See under Chlorides Arsenic Trioxide. See under Oxides Arsenic Trisulfide. See under Sulfides... 

SAFETY PROFILE Poison by ingestion and intraperitoneal routes. A trace mineral added to animal feeds. Potentially explosive reaction with charcoal + ozone, metals (e.g., powdered aluminum, copper), arsenic carbon, phosphoms, sulfur, alkali metal hydrides, alkaline earth metal hydrides, antimony sulfide, arsenic sulfide, copper sulfide, tin sulfide, metal cyanides, metal thiocyanates, manganese dioxide, phosphorus. Violent reaction with organic matter. When heated to decomposition it emits very toxic fumes of I and K2O. See also lODATES. 

Arsenic pentasulfide Arsenic sulfide Arsenic sulfide (As2S5). Used in paint pigments, light filters and manufacture of other arsenic compounds. Brown solid Insoluble in H2O. Atomergic Chemetals. 

Arsenic Sulfides Arsenic sulfide, orpiment type... 

Nickel [7440-02-0] Ni, recognized as an element as early as 1754 (1), was not isolated until 1820 (2). It was mined from arsenic sulfide mineral deposits (3) and first used in an alloy called German Silver (4). Soon after, nickel was used as an anode in solutions of nickel sulfate [7786-81 A] NiSO, and nickel chloride [7718-54-9] NiCl, to electroplate jewelry. Nickel carbonyl [13463-39-3] Ni(C02)4, was discovered in 1890 (see Carbonyls). This material, distilled as a hquid, decomposes into carbon monoxide and pure nickel powder, a method used in nickel refining (5) (see Nickel and nickel alloys). 

Arsenic Sulfides. The physical properties of the common arsenic sulfides are given in Table 3. Numerous arsenic sulfides have been reported as well as compounds containing the As2S" 4 cation [77825-63-9] (24). 

Arsenic sulfides CAS Registry Number Molecular formula Color and physical state at 25°C Heat of formation, A, kj /mol ... 

Arsenic pentasulfide (arsenic(V) sulfide), As S q, is stable in air up to 95°C, but at higher temperatures begins to dissociate into arsenous sulfide and sulfur. It is prepared by the fusion of arsenic with sulfur foUowed by extraction with ammonia and reprecipitation at low temperatures by addition of hydrochloric acid. Arsenic pentasulfide is precipitated at low temperatures from strongly acidic arsenate solutions by a rapid stream of hydrogen sulfide. It is hydrolyzed by boiling with water, yielding arsenous acid and sulfur. Salts derived from a number of thioarsenic acids are formed from arsenic pentasulfide and alkaH metal sulfides. 

Chemical Designations - Synonyms Realgar Red Arsenic Glass Red Arsenic Sulfide Red Ointment Ruby Arsenic Chemical Formula AsjSj. 

Chemical Designations - Synonyms Arsenic Yellow King s Gold King s Yellow Ointment Yellow Arsenic Sulfide Chemical Formula AsjSj. 

Compounds of Tl have many similarities to those of the alkali metals TIOH is very soluble and is a strong base TI2CO3 is also soluble and resembles the corresponding Na and K compounds Tl forms colourless, well-crystallized salts of many oxoacids, and these tend to be anhydrous like those of the similarly sized Rb and Cs Tl salts of weak acids have a basic reaction in aqueous solution as a result of hydrolysis Tl forms polysulfldes (e.g. TI2S3) and polyiodides, etc. In other respects Tl resembles the more highly polarizing ion Ag+, e.g. in the colour and insolubility of its chromate, sulfide, arsenate and halides (except F), though it does not form ammine complexes in aqueous solution and its azide is not explosive. 

Arsen-saure, /, arsenic acid, -silber, n, silver arsenide, -silberblende,/, proustite, -spiegel, m. arsenic mirror, -suifid, n, arsenic sulfide, esp. the pentasulfide. -sulfur, n. arsenic trisulfide, arsenic(III) sulfide, -iir, n, (-ous) arsenide, -verbindung, /. arsenic compound, -vergiftung, /. arsenic poisoning, -wasser-stoff, m. arsenic hydride, arseniuretted hydrogen (specif, arsine, AsHa). -zink, n. zinc arsenide. 

A. J. Monhemius, Precipitation Diagrams for Metal Hydroxides, Sulfides, Arsenates and Phosphates, Trans. IMM, Vol. 86, P. C202,1977. 

Interaction with copper(II) sulfide is explosive, and with antimony(II) sulfide, arsenic(III) sulfide, tin(II) sulfide and tin(IV) sulfide, incandescent. 

Antimony, or Antimony sulfide, or Arsenic sulfide Mellor, 1947, Vol. 10, 641... 

Mixtures of potassium nitrate with antimony trisulfide [1], barium sulfide, calcium sulfide, germanium monosulfide or titanium disulfide all explode on heating [2]. The mixture with arsenic disulfide is detonable, and addition of sulfur gives a pyrotechnic composition [2], Mixtures with molybdenum disulfide are also detonable [3], Interaction with sulfides in molten mixtures is violent [4],... 

Orpiment, Deterioration of Arsenic Sulfide Pigments. Arie Wallert, Molecular Aspects of Ageing in Painted Works of Art, Progress Report 1995-1997, FOM Institute for Atomic and Molecular Physics, Amsterdam, NL, http //www.amolf.nl/research/biomacro molecular mass spectrometry/molart/progress report98.pdf... 

Roasting arsenic sulfide in air produces the oxide, and the element is obtained from the oxide by reduction with carbon. 

Japan, near factory producing arsenic sulfide 3000 2... 

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