軽石 化学特性,用途語,生産方法
定義
本品は、火山から産出する物質であり、主としてアルミニウムおよびアルカリ金属の複合ケイ酸塩から成る。
解説
浮石(ふせき)とも。火山放出物の一種で，多量の小さな空孔をもつ明色の岩片。ケイ長質のマグマに多く生ずる。多くの軽石の比重は１より小さい。マグマが急激に噴出するとき内部からガスを発生し，急に膨張して無数の気孔を生じたもの。火砕流の主要構成物質。→関連項目スコリア
株式会社平凡社 百科事典マイペディアについて 情報
化粧品の成分用途
研磨.スクラブ剤、増量剤
説明
Pumice is sponge-like pyroclastic volcanic rock, with a very low density (i.e., below that of water), and light in color (i.e., white to gray), it may be glassy or dull, and fully riddled with holes. It is used as an abrasive (e.g., pumice stone, lava soap).
化学的特性
Grey-brown granular stones
使用
Concrete aggregate, heat and sound insulation,
filtration, finishing glass and plastics, road construc-
tion, scouring preparations, paint fillers, absorbents,
support for catalysts, dental abrasive, abherent for
uncured rubber products, possible substitute for
asbestos, polishing agent for pedicures.
主な応用
In addition to its architectural and decorative applications, pumice also has various uses in the personal care and beauty industry. It is often used as an exfoliating agent in soaps, body scrubs, and foot treatments to remove dead skin cells and promote smooth and soft skin. The abrasive properties of pumice make it effective in removing calluses and rough patches on the feet.
Moreover, pumice stone is commonly used in the horticultural industry for the preparation of soil mixes. Its porous nature allows for adequate drainage and aeration, preventing waterlogging and providing a favorable environment for plant growth. Pumice is also frequently added to bonsai soil mixes to enhance the drainage abilities of the soil.
In summary, pumice stone is a versatile material that finds utility in a wide range of applications. Its properties as an abrasive agent, insulator, and lightweight aggregate make it valuable in industries such as construction, personal care, horticulture, and decoration.
定義
A highly porous igneous rock, usually
containing 67–75% Si O2and 10–20% Al
2
O3, with a
glassy texture. Potassium, sodium, and calcium are
generally present. Insoluble in water, not attacked
by acids.
軽石 上流と下流の製品情報
原材料
準備製品