二氧化碳
性状
本品为无色气体;无臭;水溶液显弱酸性反应。本品1容在常压20℃时,能溶于水约1容中。
鉴别
(1)取本品,通入氢氧化钡试液中,即生成白色沉淀;沉淀能在醋酸中溶解并发生泡沸。(2)本品能使火焰熄灭。(3)本品的红外光吸收图谱应与对照的图谱(图1)一致(通则0402)
检查
酸度取水100ml,加甲基橙指示液0.2ml,混匀,分取各50ml,置甲、乙两支比色管中,于乙管中,加盐酸滴定液(0.01mol/L)1.0ml,摇匀;于甲管中,通入本品1000ml(速度为每小时4000ml)后,显出的红色不得较乙管更深。
浩瀚色谱（山东）应用技术开发有限公司，依据药典的要求，提供气体流量计，欢迎咨询。
名称：气体流量计
型号：LZB-3
接口：1/8卡套
应用：2020年版药典二氧化碳
carbon dioxide
character
This product is a colorless gas; Odorless; The aqueous solution exhibits weak acidic reactions. This product is soluble in approximately 1 volume of water at atmospheric pressure of 20 ℃.
distinguish
(1) Take this product and pour it into the barium hydroxide test solution to form a white precipitate; Precipitation can dissolve in acetic acid and undergo boiling. (2) This product can extinguish flames. (3) The infrared absorption spectrum of this product should be consistent with the control spectrum (Figure 1) (General Rule 0402)
inspect
Take 100ml of water for acidity, add 0.2ml of methyl orange indicator solution, mix well, take 50ml of each, place them in two colorimetric tubes A and B, add 1.0ml of hydrochloric acid titrant (0.01mol/L) in tube B, shake well; After introducing 1000ml of this product into tube A (at a speed of 4000ml per hour), the red color should not be darker than that of tube B.
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. provides gas flow meters according to the requirements of the Pharmacopoeia. Welcome to consult.
Name: Gas Flowmeter
Model: LZB-3
Interface: 1/8 card sleeve
Application: 2020 Pharmacopoeia Carbon Dioxide
滕州市浩瀚色谱仪器技术服务有限公司
电话：0632-5667636
传真：0632-5667636
手机：15562228838,13963221227
地址：山东滕州市平行路（商务部和技术部）
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联系人：王经理
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