2,5-ジニトロフェノールを0.1%含む約50%含水エタノール溶液 化学特性,用途語,生産方法
外観
うすい黄色~黄色粉末~結晶
溶解性
水, エタノールに難溶, エーテルに易溶。エタノールにやや溶けやすく、水に極めて溶けにくい。
用途
pH指示薬、有機合成原料。
使用上の注意
乾燥したものは保存しないで下さい。
化学的特性
Yellow needles, flammable. Soluble in ether, benzene, hot water, and ethanol.
一般的な説明
Yellow crystalline solid with a sweet musty odor. Sinks and mixes slowly with water.
空気と水の反応
Slowly mixes with water.
反応プロフィール
2,5-DINITROPHENOL can detonate or explode when heated under confinement [USCG, 1999]. Phenols do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Instead, they react as weak organic acids. Phenols and cresols are much weaker as acids than common carboxylic acids (phenol has Ka = 1.3 x 10^[-10]). These materials are incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides. Flammable gas (H2) is often generated, and the heat of the reaction may ignite the gas. Heat is also generated by the acid-base reaction between phenols and bases.
健康ハザード
INHALATION, INGESTION OR SKIN ABSORPTION: Fatigue, thirst, sweating, flushing of face, nausea, vomiting, abdominal pain, diarrhea; restlessness, anxiety, excitement occasionaly leading to convulsions; fever, tachycardia, labored respiration, cyanosis, and sometimes muscle cramps. Loss of consciousness, cessation of breathing and death. EYES: Causes dilation of pupils or posterior subcapsular opacities or cataracts. SKIN: Discoloration, irritation, and dermatitis.
純化方法
Crystallise 2,5-dinitrophenol from H2O with a little EtOH. [Beilstein 6 IV 1383.]
2,5-ジニトロフェノールを0.1%含む約50%含水エタノール溶液 上流と下流の製品情報
原材料
準備製品