フッ化水素カリウム 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 (41g/100ml水, 21℃), エタノールに不溶。
用途
木材防かび剤
用途
用途はエッチング液、木材防腐剤 、真鍮のろう付け用フラックスなど。
化学的特性
WHITE TO LIGHT GREY CRYSTALS OR CRYSTALLINE POWDER
使用
Potassium hydrogen fluoride is widely used as an etchant in glass and cleaning products. It finds an important application in the synthesis of special optical glass viz. crown and crown flint glass and as a catalyst for polymerization. It is involved in the manufacturing of wood preservatives, soldering agents and brazing. It is also used in the manufacturing of organic and inorganic fluorine compounds.
一般的な説明
Colorless crystals, corrosive to tissues, etches glass.
空気と水の反応
Water soluble giving strongly acidic solutions.
反応プロフィール
Acidic salts, such as Potassium hydrogen fluoride, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible.
危険性
Corrosive to tissue.
健康ハザード
TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. 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. 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
A poison. Very
corrosive and reactive. A corrosive irritant
to the eyes, skin, and mucous membranes.
When heated to decomposition it emits
toxic fumes of F and K2O. See also
FLUORIDES and HYDROFLUORIC
ACID.
純化方法
It crystallises from water. It is very soluble in hot H2O and 41% at 21o. [Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 237 1963.]
フッ化水素カリウム 上流と下流の製品情報
原材料
準備製品