メタほう酸リチウム

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

  H302：飲み込むと有害

  H318：重篤な眼の損傷

• 注意書き

  P202：全ての安全注意を読み理解するまで取り扱わないこ 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。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P301+P312：飲み込んだ場合：気分が悪い時は医師に連絡する こと。

  P305+P351+P338：眼に入った場合：水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。

  P308+P313：暴露または暴露の懸念がある場合：医師の診断/手当てを 受けること。

メタほう酸リチウム 価格

メタほう酸リチウム 化学特性,用途語,生産方法

• 化学的特性

  White powder

• 使用

  Lithium metaborate is used for flux.

• 製造方法

  Lithium metaborate, LiBO2, may be prepared by fusing together either lithium hydroxide or lithium carbonate and boric acid in the proper stoichiometric ratio. Recrystallization from water at about room temperature yields lithium metaborate- octahydrate, LiBO2·8H2O. The octahydrate may be dried to yield a dihydrate, LiBO2-2H2O, or a half-hydrate, LiBO2·0.5H2O.

• 一般的な説明

  Lithium metaborate (LiBO₂) is the lithium salt of boric acid. It can be synthesized by reacting orthoboric acid with lithium carbonate. Its crystals belong to the monoclinic crystal system having space group P2₁/c. Three polymorphic forms have been identified on ambient pressure devitrification of LiBO₂: α-, γ- and β′-LiBO₂.

• Structure and conformation

  Lithium metaborate has several crystal forms. 
  Below 100 °C, LiBO₂·8H₂O is firstly dehydrated to a lower hydrate LiBO₂·2H₂O ^[1].
  When the temperature is higher than 190°C, the dehydrated amorphous hydrate could crystallize into other poorly crystalline phases designated as LiBO₂·xH₂O (x=0.3/0.5)^[2]. 
  An anhydrous monoclinic α-LiBO₂ could be obtained when the baking temperature reaches 600 °C. The α form consists of infinite chains of trigonal planar metaborate anions [BO2O^-]n.
  At 950 °C, by applying 15 kbar of pressure to a LiCl flux containing α-LiBO_2, α-LiBO₂ could be converted to metastable γ-LiBO₂ crystals which were small, but of high quality^[3]. γ-LiBO² has tetragonal symmetry with lattice parameter a=4.1961 ?, c=6.5112 ?, space group I-42d and a density of 2.882 g/cm³.

メタほう酸リチウム 生産企業

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メタほう酸リチウム スペクトルデータ(IR、Raman)

13453-69-5, メタほう酸リチウム キーワード