中文別名: 溴甲酚綠鈉 英文名稱(chēng): Bromocresol green sodium salt CAS號(hào): 62625-32-5 EINECS號(hào): 685-526-4 等級(jí): IND 含量: 99 CAS號(hào): 62625-32-5
分子式: C21H13Br4NaO5S
分子量: 720.00
別名: 溴甲酚綠鈉鹽
品級(jí)Grade 分析純
(AR)
外觀Appearance Dark green to black powder or crystals
紅外光譜鑒別Infrared spectrum Conforms to structure
純度Purity(HPLC) ≥90.0%
PH變色范圍Visual range 3.8(yellow)-5.4(blue)
灼燒殘?jiān)黂esidue on ignition(as sulfate) 8.5-11.5%
項(xiàng)目(name) 指示劑(Ind)
(indicator grade)
水溶解試驗(yàn) 合格
PH變色范圍 3.8(黃色)-5.4(藍(lán)色)
灼燒殘?jiān)?以硫酸鹽計(jì)) 8.5-11.5%
品級(jí)Grade 高純級(jí)
(High pure)
外觀Appearance 暗綠色至棕色、黑色粉末或結(jié)晶
紅外光譜鑒別Infrared spectrometry Conforms
純度Purity 98.0 to 105.0 % (以干基計(jì))
pH變色域Transition interval: pH 3.8 (yellow) to pH 5.4 (blue)
靈敏性試驗(yàn)Sensitiveness test Pass
品級(jí)Grade ACS級(jí)
(ACS reagent, 90 %)
外觀Appearance 暗綠色至棕色、黑色粉末或結(jié)晶
紅外光譜鑒別Infrared spectrometry Conforms
純度Purity ≥90.0% (HPLC)
λ 614 - 618 nm
c = 0.01g/L, Water
消光系數(shù)Extinction Coefficient ≥25000
λ 394 - 406 nm
消光系數(shù)Extinction Coefficient ≥8000
λ 306 - 310 nm
消光系數(shù)Extinction Coefficient ≥10000
pH變色域Transition interval: pH 3.8 (yellow) to pH 5.2 (blue)
Visual Interval Pass
pH 3.8 = Yellow
Visual Interval Pass
pH 4.5 = Green
Visual Interval Pass
pH 5.4 = Blue
不溶物Insoluble Matter. c = 0.1g/100ml; Water
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