モレキュラーシーブ 3A

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H315：皮膚刺激

  H319：強い眼刺激

  H335：呼吸器への刺激のおそれ

• 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。

  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。

  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。

  P405：施錠して保管すること。

モレキュラーシーブ 3A 価格

モレキュラーシーブ 3A 化学特性,用途語,生産方法

• 外観

  径:　2.9～3.5mm

• 溶解性

  水及び一般の有機溶媒にほとんど溶けない。

• 用途

  乾燥剤、脱水剤。

• 用途

  クラックドガス、エチレン、ブタジエン、エタノール等の脱水。

• 用途

  クラックドガス、エチレン、ブタジエン、エタノール等の乾燥。

• 使用上の注意

  外装パック開封後は空気中の水分を吸収して熱を持つ場合があります。

• 化学的特性

  white powder

• 使用

  Molecular sieves, 3A is used as desiccant in petroleum and chemical industries. It is useful for the drying of unsaturated hydrocarbons such as ethylene, propylene and butadiene. It is also used in the removal of water from ethanol. It finds application in the drying of certain chemicals namely ethanol, refrigerants and natural gas. It plays an important role as selective adsorption of water in insulated glass (IG) and polyurethane. It has been considered as a general-purpose drying agent in polar and non polar media.

• 定義

  Porous crystallinesubstances, especially aluminosilicates(see zeolite), that can be dehydratedwith little change in crystalstructure. As they form regularlyspaced cavities, they provide a highsurface area for the adsorption ofsmaller molecules.
  The general formula of these substancesis M_nO.Al₂O₃.xSiO₂.yH₂O,where M is a metal ion and n is twicethe reciprocal of its valency. Molecularsieves are used as drying agentsand in the separation and purificationof fluids. They can also be loadedwith chemical substances, which remainseparated from any reactionthat is taking place around them,until they are released by heating orby displacement with a morestrongly adsorbed substance. Theycan thus be used as cation exchangemediums and as catalysts and catalystsupports. They are also used asthe stationary phase in certain typesof chromatography (molecular-sievechromatography).

• 一般的な説明

  Molecular sieves are crystalline metal aluminosilicates having a 3-dimensional interconnecting network of silica and alumina tetrahedra. Natural water of hydration is removed from this network by heating to produce uniform cavities which selectively adsorb molecules of a specific size. The 3A form is made by substituting potassium cations for the inherent sodium ions of the 4A structure, reducing the effective pore size to ~3?, excluding diameter >3?, e.g., ethane. The 4 to 8-mesh type is normally used in gas-phase applications. Molecular sieves are considered a universal drying agent in polar and nonpolar media.

モレキュラーシーブ 3A 上流と下流の製品情報

モレキュラーシーブ 3A 生産企業

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モレキュラーシーブ 3A スペクトルデータ(IR)

308080-99-1, モレキュラーシーブ 3A キーワード