Detecting methods for impurities in Ammonium Hydroxide

• Main Authors: KIM, KI HYUN, LIM, KWANG SHIN, LEE, HYANG BONG, KIM, SOO YEON, PARK, JUNG DAE, SUH, MIN SOO
• Format: Patent
• Language: English; Korean
• Published: 14.08.2017
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; TESTING; THEIR RELEVANT APPARATUS; TRANSPORTING

Provided is a method for detecting impurities in ammonium hydroxide. The method for detecting impurities in ammonium hydroxide comprises the following steps: preparing a potassium permanganate solution; preparing ammonium hydroxide; and adding the potassium permanganate solution to the ammonium hydroxide several times, and detecting impurities in the ammonium hydroxide. The potassium permanganate solution is added by 0.0001 to 0.01 mol per 1 g of ammonia contained in the ammonium hydroxide for each time. 본 발명에 따르면, 암모니아수 내의 불순물 검출방법이 제공될 수 있다. 암모니아수 내의 불순물 검출방법은 과망간산칼륨 용액을 제조하는 것; 암모니아수를 준비하는 것; 및 상기 암모니아수에 과망간산칼륨 용액을 복수 회 첨가하여, 상기 암모니아 수 내의 불순물을 검출하는 것을 포함할 수 있다. 상기 과망간산칼륨 용액은 회당 상기 암모니아수 내의 암모니아의 1g 대비 0.0001 mol 내지 0.01mol 첨가될 수 있다.