アルセナート

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Danger

• 危険有害性情報

  H301：飲み込むと有毒

  H331：吸入すると有毒

  H350：発がんのおそれ

  H400：水生生物に強い毒性

  H410：長期的影響により水生生物に非常に強い毒性

• 注意書き

  P261：粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。

  P264：取扱い後は皮膚をよく洗うこと。

  P264：取扱い後は手や顔をよく洗うこと。

  P270：この製品を使用する時に、飲食または喫煙をしないこ と。

  P271：屋外または換気の良い場所でのみ使用すること。

  P273：環境への放出を避けること。

  P301+P310：飲み込んだ場合：直ちに医師に連絡すること。

  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。

  P311：医師に連絡すること。

  P321：特別な処置が必要である（このラベルの．．． を見よ）。

  P330：口をすすぐこと。

  P391：漏出物を回収すること。

  P403+P233：換気の良い場所で保管すること。容器を密閉 しておくこと。

  P405：施錠して保管すること。

  P501：内容物/容器を．．．に廃棄すること。

アルセナート 価格

アルセナート 化学特性,用途語,生産方法

• 外観

  わずかにうすい緑色, 澄明～微濁の液体

• 溶解性

  水に溶ける。

• 解説

  一般式M^I₃AsO₄で表されるヒ酸の塩．AsO₄^3－を含み，一般に無色結晶．これらはリン酸塩とよく似ている．水素塩M^I₂HAsO₄およびM^IH₂AsO₄も知られている．

• 用途

  消泡剤

• 化学的特性

  Arsenic acid is a clear, white, semi-transparent crystal (sugar or sand-like) material. Arsenic acid is one of the most commercially important pentavalent compounds of arsenic. It is used for wood treatment/wood preservative, as a drying agent, a soil sterilant, and to make other arsenates. It is a broad-spectrum biocide, a fi nishing agent for glass and metal, and a reagent in the retard of dyestuffs and organic arsenic compounds. Arsenic acid decomposes on heating, producing toxic and corrosive fumes. It is a strong oxidant and reacts with combustible and reducing materials and attacks/ damages metals to produce toxic and flammable arsine. It is soluble in water and forms the arsenate ion.

• 物理的性質

  Hygroscopic translucent crystals; density between 2 to 2.5 g/cm³; melts at 35.5°C; loses water when heated to 160°C; highly soluble in cold water; soluble in alcohol, glycerol and alkalies.

• 使用

  Pesticides; herbicides; fungicides; algicides.

• 製造方法

  Arsenic acid is prepared by treating arsenic trioxide with concentrated nitric acid; or by combination of arsenic pentoxide with water. The latter reaction is very slow. It is also formed when meta- or pyroarsenic acid is treated with cold water.

• 定義

  Any salt or ester of arsenic acid. They are distributed widely in nature and contaminate coal and metal ores. Arsenates uncouple oxidative phosphorylation by replacing inorganic phosphorous in the ATP.

• 一般的な説明

  White crystals. Melting point 95°F. Excessive drying produces As2O5.5/3H2O.

• 空気と水の反応

  Hygroscopic. Water soluble.

• 反応プロフィール

  ARSENIC ACID may evolve very toxic gaseous arsine (AsH3) from contact with active metals, such as zinc and aluminum [Inorganic Chemicals Handbook, I, p. 175]. When heated to decomposition, ARSENIC ACID produces toxic fumes of metallic arsenic [Sax, 9th ed., p. 271]. The solution is weakly acidic and a weak oxidizing agent. Reacts with alkalis to generate some heat and precipitate arsenates.

• 危険性

  Carcinogen; toxic.

• 健康ハザード

  Arsenic acid is absorbed into the body by inhalation of its vapor, through the skin, and by ingestion. Arsenic acid is an eye irritant and may cause burns. Most injuries result from exposure to dusts, causing conjunctivitis, lacrimation, photophobia, and chemosis. Exposures to arsenic acid cause poisoning with symptoms of irritation of the eyes, the skin, the respiratory tract, respiratory distress, sore throat, nausea, vomiting, diarrhea, poor appetite, and stomach cramps. Arsenic acid also causes effects on the blood, cardiovascular system, gastrointestinal tract, liver, and peripheral nervous system, leading to polyneuropathy and convulsions. Repeated exposures to high concentrations of arsenic acid have been reported to cause nerve damage, with “pins and needles,” numbness, and weakness of the arms and legs, and even death. Tachycardia is frequently reported following ingestion of arsenic acid salts and is contributed to by anxiety, intravascular fl uid depletion, and possibly direct arsenic-induced cardiotoxicity.

• 火災危険

  Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

• 安全性プロファイル

  Confirmed human carcinogen. Poison by ingestion. An experimental teratogen. Human mutation data reported. When heated to decomposition it emits toxic fumes of arsenic. See also ARSENIC COMPOUNDS.

• 貯蔵

  Arsenic acid should be kept stored in an area without drain or sewer access. It should be separated from strong oxidants, strong bases, metals, strong reducing agents, food, and feedstuffs. Occupational workers should keep arsenic acid in a cool, well-ventilated area, away from heat. Workers should avoid storing or transporting arsenic acid with aluminium, copper, iron, or zinc.

• 予防処置

  Occupational workers should be extremely careful and cautious during handling and use of arsenic acid.

• 参考文献

  R.N. Goldberg, N. Kishore, R.M. Lennen, J. Phys. Chem. Ref. Data, 31, 231 (2002), DOI: 10.1063/1.1416902.

アルセナート 上流と下流の製品情報

7778-39-4, アルセナート キーワード