![]() Using premium quality active ingredients and innovative formulations, we help our customers to achieve high-level product performance while helping reduce the harmful fire emission and fume effects. ![]() When your polymer must be flame-retardant, Haiwang has the masterbatch expertise to make it happen.Īs a leading producer of Flame retardants for industrial applications for more than 30 years, Haiwang offers an extensive product portfolio of flame retardant masterbatches to meet market demand. ![]() We produce complete flame-retardant systems as well as Antimony Oxide masterbatches.Īs one of the largest suppliers of flame retardant masterbatches, we specialize in the design and development of additive masterbatches and flame retardant compounds. Retrieved 1 January 2016.Haiwang is one of the largest suppliers of flame retardant masterbatches in China. “Mineral Commodity Summaries: Antimony” (PDF). 3, pages 51–62, 93–106, 244–255, 353–364 (1814) – on page 52, Berzelius lists the symbol for antimony as “St” however, starting on page 248, Berzelius subsequently uses the symbol “Sb” for antimony In his long article on chemical reactions and nomenclature – Jöns Jacob Berzelius, “Essay on the cause of chemical proportions, and on some circumstances relating to them: together with a short and easy method of expressing them,” Annals of Philosophy, vol. ![]() There are thirty-five radioactive isotopes of antimony, and among them the most stable isotope is antimony-125 that has a half life of 2.75 years. These isotopes have almost same natural abundance, 57.36% (Sb-121) and 42.64% (Sb-123). It has two stable isotopes, antimony-121 and antimony-123. In powdered form, antimony is explosive and can lead to spontaneous ignition when exposed to air. A dose of 50mg/m 3 of antimony is fatal for humans. Prolonged dermal exposure to antimony dust can lead to damage and infection of the skin. For instance, antimony trioxide in powdered form can lead to irritation of nose and throat when inhaled and can cause cancer. However, some compounds of antimony are toxic and are considered carcinogens. Antimony compounds are used in some drugs and veterinary medications.Īntimony in its pure or elemental form is non-toxic.It is used as a fining agent to remove bubbles from glass, especially in TV and laptop screens.Antimony is used as a catalyst in industrial processes.Antimony is used to make lead shot, bullets, electrical cables, and solders.For instance, it is used in alloying of lead that is used in acid batteries to improve charging features. Antimony is used to make useful alloys to increase mechanical strength and hardness.Antimony is used to make flame retardant compounds.It reacts with metals, such as silver and indium to form silver antimonide and indium antimonide. Antimony reacts with halogens and form halides with +3 and +5 oxidation states. The most commo and stable oxidation state of antimony is +5. Chemical CharacteristicsĪt room temperature, antimony does not react with air, but when heated it reacts with oxygen to produce antimony trioxide. There are four allotropic forms of antimony three metastable forms: yellow, black and explosive, and one metallic form that is stable. It is a soft element and cannot be used to make hard objects, including coins. Physical CharacteristicsĪntimony is a shiny grey metalloid. Other countries that have reservoirs of antimony include Tajikistan, Russia, South Africa and Bolivia. In early days, China was the biggest producer of antimony, which supply around 84% of the world share. Antimony is found in more than 100 types of minerals. In nature, it is present in the form of mineral, such as stibnite, which is its sulfide mineral (Sb 2S 3). Antimony Periodic Table ClassificationĪntimony is not very abundant element. Its symbol is Sb, which was given by Jakob Berzelius as an abbreviation for stibium. The earliest description of this element was presented by Vannoccio Biringuccio in 1540. And was given the name antimoine in French which mean “monk-killer” as in early days the alchemists were monks, and antimony was poisonous. It was named antimonium in late Greek language. It was used for cosmetic and medicinal purposes in its powdered form. Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl History and DiscoveryĪntimony has been known since ancient times. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. Antimony is a chemical element with symbol Sb and atomic number 51.
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