セレン酸ナトリウム 化学特性,用途語,生産方法
外観
白色, 結晶～結晶性粉末
溶解性
水に易溶 (83.4g/100ml, 35℃), エタノールに不溶。水に溶けやすい。
解説
化学式 Na2SeO4 。セレン酸ナトリウム，水に易溶な結晶。殺虫剤として使われる。人畜に対し猛毒である。
ブリタニカ国際大百科事典 小項目事典 ブリタニカ
用途
硝子の着色および脱色剤、陶磁器の着色剤、銅メッキ光沢剤 (2016年度版 16716の化学商品)
化学的特性
White crystalline powder
使用
Sodium selenate is used in glass industry, and produces red hue in glass. It acts as a decoloring agent in glass production. Combined with ferrous oxides, it produces colorless glass. Appropriate preparation of sodium selenate is used in multivitamins.
定義
ChEBI: An inorganic sodium salt having selenate as the counterion.
一般的な説明
Colorless rhombic crystals. Used as an insecticide in some horticultural applications.
空気と水の反応
Water soluble.
反応プロフィール
Sodium selenate has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive. Light sensitive
危険性
Toxic by ingestion.
健康ハザード
Causes damage to liver and kidneys. Resembles arsenic in its effects.
火災危険
Fire may produce irritating or poisonous gas. Emits toxic selenium and sodium oxide fumes when heated to decomposition. Avoid decomposing heat.
安全性プロファイル
Poison by ingestion,
intravenous, subcutaneous, and
intraperitoneal routes. Questionablecarcinogen with experimental carcinogenic
and teratogenic data. Human systemic
effects by ingestion: EKG changes,
hypermotility, diarrhea, and liver
impairment. Experimental reproductive
effects. Effects sdar to those of arsenic.
Mutation data reported. A pesticide. When
heated to decomposition it emits toxic
fumes of Se and NanO. See also
SELENIUM COMPOUNDS and
ARSENIC COMPOUNDS.
純化方法
Crystallise sodium selenate from hot water. [Fehér in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 433 1963].
セレン酸ナトリウム 上流と下流の製品情報
原材料
準備製品