Anhydrous (original) (raw)
في الكيمياء، توصف مادة ما أنها لامائية عندما لا تحوي على جزيئات الماء في تركيبها. على سبيل المثال، إن الأملاح اللامائية، هي الأملاح التي لا تحوي على ماء التبلور ضمن بنيتها البلورية. تتفاوت الطريقة التي يمكن الحصول فيها على الصفة اللامائية من مادة لأخرى.
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| dbo:abstract | في الكيمياء، توصف مادة ما أنها لامائية عندما لا تحوي على جزيئات الماء في تركيبها. على سبيل المثال، إن الأملاح اللامائية، هي الأملاح التي لا تحوي على ماء التبلور ضمن بنيتها البلورية. تتفاوت الطريقة التي يمكن الحصول فيها على الصفة اللامائية من مادة لأخرى. (ar) Anhidre com a terme general és una substància que no conté aigua. Per obtenir la forma anhidra d'una substància hi ha diversos procediments. (ca) A substance is anhydrous if it contains no water. Many processes in chemistry can be impeded by the presence of water; therefore, it is important that water-free reagents and techniques are used. In practice, however, it is very difficult to achieve perfect dryness; anhydrous compounds gradually absorb water from the atmosphere so they must be stored carefully. (en) Como término general, se dice que una sustancia es anhidra si no contiene agua. La manera de obtener la forma anhidra difiere entre sustancias. (es) Anhidro deritzo urik ez duen substantziari edo inguruneari. Horrela gatz edo disoluzio anhidroei buruz mintza gaitezke. Urak prozesu kimiko askok behar izaten dituzten erreaktibo edo ingurune anhidroei kalte egiten die. Hortaz, ura kentzeko prozesuak abian jarri behar dira lanari ekin aurretik. Adibidez, igeltsua naturan gatz hidratatu moduan moduan egoten da, CaSO4 2 H2O. Alabaina, eraikuntzan edo medikuntza erabiltzen den igeltsua lortzeko minerala partez deshidratatu egin behar da sortzeko (CaSO4 1/2 H2O) hauts dena eta ura eranstean gogortu egiten dena. Hemihidratoa berotuz, kaltzio karbonato anhidroa lortzen da, CaSO4, beste erabilera batzuk ere dituena, elikagai-gehigarri moduan adibidez. (eu) Sebagai suatu istilah umum, sebuah substansi akan disebut anhidrat jika tidak mengandung air. Cara supaya substansi tersebut menjadi anhidrat tentu berbeda antara satu substansi dengan substansi lainnya. Maka, dapat dikatakan bahwa suatu senyawa/zat anhidrat dibuat dengan tujuan untuk digunakan sebagai campuran yang tidak mengandung air. (in) Le terme anhydre (du grec ἄνυδρος (« sans eau »)), désigne généralement une substance (sel, cristal ionique, composé, solvant, gaz, etc.) qui ne contient pas d'eau libre, ou alors qui en contient en très faible quantité, ce qui se traduit par une activité de l'eau presque nulle. (fr) Watervrij heeft meerdere betekenissen. (nl) Il termine anidro (dal greco ἄνυδρος, senza acqua) viene utilizzato per indicare un composto o una sostanza privi di acqua, indipendentemente dallo stato fisico. In genere si riferisce a quelle sostanze chimiche che hanno subito un processo di essiccamento o che hanno perso acqua di cristallizzazione. I composti e le sostanze anidre sono generalmente igroscopiche e tendono ad assorbire acqua; è necessario quindi conservarle in contenitori a chiusura ermetica in modo che non vengano a contatto con l'umidità presente nell'atmosfera. (it) Anidro é um termo geral utilizado para designar uma substância de qualquer natureza que não contém, ou quase não contém, água na sua composição. O termo ganha diferentes significados conforme trate-se de uma solução, de uma suspensão, de um cristal ou de um gás. Um álcool com até 1% de água. também pode ser adicionado à gasolina para aumento da octanagem. Para se obter o álcool Anidro, o etanol 96° GL é tratado com a cal virgem - CaO - e, a seguir, destilado. A reação entre cal virgem e a água produz cal hidratada - Ca(OH)2 -, que não sai na destilação. Em grande escala esta operação é realizada por destilação conjuntamente com benzeno. Ver também: hidrato (pt) 无水物是不含结晶水的物质，有时又称作无水盐。更广义上地说，无水物不含一切形式的水分子，如游离水。 (zh) |
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| rdfs:comment | في الكيمياء، توصف مادة ما أنها لامائية عندما لا تحوي على جزيئات الماء في تركيبها. على سبيل المثال، إن الأملاح اللامائية، هي الأملاح التي لا تحوي على ماء التبلور ضمن بنيتها البلورية. تتفاوت الطريقة التي يمكن الحصول فيها على الصفة اللامائية من مادة لأخرى. (ar) Anhidre com a terme general és una substància que no conté aigua. Per obtenir la forma anhidra d'una substància hi ha diversos procediments. (ca) A substance is anhydrous if it contains no water. Many processes in chemistry can be impeded by the presence of water; therefore, it is important that water-free reagents and techniques are used. In practice, however, it is very difficult to achieve perfect dryness; anhydrous compounds gradually absorb water from the atmosphere so they must be stored carefully. (en) Como término general, se dice que una sustancia es anhidra si no contiene agua. La manera de obtener la forma anhidra difiere entre sustancias. (es) Sebagai suatu istilah umum, sebuah substansi akan disebut anhidrat jika tidak mengandung air. Cara supaya substansi tersebut menjadi anhidrat tentu berbeda antara satu substansi dengan substansi lainnya. Maka, dapat dikatakan bahwa suatu senyawa/zat anhidrat dibuat dengan tujuan untuk digunakan sebagai campuran yang tidak mengandung air. (in) Le terme anhydre (du grec ἄνυδρος (« sans eau »)), désigne généralement une substance (sel, cristal ionique, composé, solvant, gaz, etc.) qui ne contient pas d'eau libre, ou alors qui en contient en très faible quantité, ce qui se traduit par une activité de l'eau presque nulle. (fr) Watervrij heeft meerdere betekenissen. (nl) Il termine anidro (dal greco ἄνυδρος, senza acqua) viene utilizzato per indicare un composto o una sostanza privi di acqua, indipendentemente dallo stato fisico. In genere si riferisce a quelle sostanze chimiche che hanno subito un processo di essiccamento o che hanno perso acqua di cristallizzazione. I composti e le sostanze anidre sono generalmente igroscopiche e tendono ad assorbire acqua; è necessario quindi conservarle in contenitori a chiusura ermetica in modo che non vengano a contatto con l'umidità presente nell'atmosfera. (it) 无水物是不含结晶水的物质，有时又称作无水盐。更广义上地说，无水物不含一切形式的水分子，如游离水。 (zh) Anhidro deritzo urik ez duen substantziari edo inguruneari. Horrela gatz edo disoluzio anhidroei buruz mintza gaitezke. Urak prozesu kimiko askok behar izaten dituzten erreaktibo edo ingurune anhidroei kalte egiten die. Hortaz, ura kentzeko prozesuak abian jarri behar dira lanari ekin aurretik. (eu) Anidro é um termo geral utilizado para designar uma substância de qualquer natureza que não contém, ou quase não contém, água na sua composição. O termo ganha diferentes significados conforme trate-se de uma solução, de uma suspensão, de um cristal ou de um gás. Um álcool com até 1% de água. também pode ser adicionado à gasolina para aumento da octanagem. Para se obter o álcool Anidro, o etanol 96° GL é tratado com a cal virgem - CaO - e, a seguir, destilado. A reação entre cal virgem e a água produz cal hidratada - Ca(OH)2 -, que não sai na destilação. Ver também: hidrato (pt) |
| rdfs:label | Anhydrous (en) لامائي (ar) Anhidre (ca) Anhidro (es) Anhidro (eu) Anhidrat (in) Anidro (it) Anhydre (fr) Watervrij (nl) Anidro (pt) 无水物 (zh) |
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