亜セレン酸バリウム

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 危険有害性情報

  H300：飲み込むと生命に危険

  H310：皮膚に接触すると生命に危険

  H330：吸入すると生命に危険

  H373：長期にわたる、または反復暴露により臓器の障 害のおそれ

• 注意書き

  P304+P340：吸入した場合：空気の新鮮な場所に移し、呼吸しやすい 姿勢で休息させること。

  P320：特別な治療が緊急に必要である（このラベ ルの．．．を見よ）。

  P330：口をすすぐこと。

  P405：施錠して保管すること。

亜セレン酸バリウム 価格

MSDS Information

• Barium selenite

亜セレン酸バリウム 化学特性,用途語,生産方法

• 外観

  白色～ほとんど白色, 粉末

• 溶解性

  水に難溶。

• 用途

  セレン研究用難溶性セレン源。

• 説明

  Barium selenite has the molecular formula of BaSeO3 and the molecular weight of 264.2865 g/mol. Its CAS number is 13718-59-7. It is a white solid that is insoluble in water. It can be prepared by the addition of sodium selenite to a solution of barium chloride:
  BaCl2(aq)+ Na2SeO3(aq) ? BaSeO3(solid)
  It can also be prepared by treating a solution of barium chloride with selenous acid and adding sodium carbonate to start precipitation. There is no record of a hydrate and the anhydrate is stable upon heating to over 950 °C.

• 化学的特性

  solid [ALD93]

• 物理的性質

  The heat of formation of barium selenite is: △_fH298 - BaSeO3 = 2230.6 kcal/mol (—964.7 kJ/mol). The precipitate of barium selenite is not oxidized by air during drying at 110°C. In air, however, it oxidizes to the selenate at about 700–750°C:
  2BaSeO3+ O2+ heat ? 2BaSeO4
  Bariumselenite is a fine white crystalline powder that is mainly used in the glass industry to color and decolor glass.

• 使用

  Barium selenite is primarily chosen for producing special glass and leads to the formation of glass with high index of refraction. Barium selenite 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. Noncombustible, the substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes of SeO2.

• 反応プロフィール

  Barium selenite 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. Noncombustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

• 健康ハザード

  Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

• 火災危険

  Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Containers may explode when heated. Runoff may pollute waterways.

亜セレン酸バリウム 生産企業

Global(48)Suppliers

13718-59-7, 亜セレン酸バリウム キーワード