標(biāo)準(zhǔn)編號(hào):	GB 223.41-1985
中文名稱(chēng):	鋼鐵及合金化學(xué)分析方法 離子交換分離-連苯三酚光度法測(cè)定鉭量
英文名稱(chēng):	Methods for chemical analysis of iron,steel and alloy; The anion-exchange separation-pyrogallol photometric method for the determination of tantalum content
中標(biāo)分類(lèi):	H11    鋼鐵與鐵合金分析方法
行業(yè)分類(lèi):	GB    國(guó)家標(biāo)準(zhǔn)
ICS分類(lèi):	77.080 77.080    黑色金屬 77.080
發(fā)布機(jī)構(gòu):	國(guó)家標(biāo)準(zhǔn)局
發(fā)布日期:	1985-7-18
實(shí)施日期:	1986-6-1
標(biāo)準(zhǔn)狀態(tài):	valid
替代舊標(biāo)準(zhǔn):	YB 3514-1978
翻譯語(yǔ)言:	英文
文件格式:	PDF
中文字符數(shù):	400 字
翻譯價(jià)格(元):	280.0
交付時(shí)間:	付款后 1 個(gè)工作日

1 Principle Tantalum and pyrogallol generate yellow complex compound in acid solution, which can be interfered by iron, titanium, niobium, molybdenum, wolfram, etc. which can be separated from tantalum with anion-exchange separation method. Concentration and absorbance are proportionate when the tantalum content in 50ml solution is 50~800μg. 2 Reagents 2.1 Potassium pyrosulfate (solid), crushed into 3~4 mm pieces. 2.2 Hydrochloric acid (proportion: 1.19). 2.3 Hydrochloric acid (1+11). 2.4 Nitric acid (proportion 1.42). 2.5 Hydrofluoric acid (proportion 1.15).