tag:blogger.com,1999:blog-2878031054271009109.post4225690617576142154..comments2024-03-29T18:20:32.247+08:00Comments on Lu Le Laboratory: Preparation of Anhydrous Nitric Acid - Lu Le LaboratoryLe Luhttp://www.blogger.com/profile/02630054521054204359noreply@blogger.comBlogger15125tag:blogger.com,1999:blog-2878031054271009109.post-3034051721090808622022-10-22T04:06:34.251+08:002022-10-22T04:06:34.251+08:00How can I distill vacuum nitric acid to get a conc...How can I distill vacuum nitric acid to get a concentration of 100%,Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-47994071237866353442020-02-12T14:14:51.316+08:002020-02-12T14:14:51.316+08:00This is such nice and useful information for us. I...This is such nice and useful information for us. I really appreciate this blog to have this kind of knowledge. Also explore <a href="www.chemtradeasia.com/en/nitric-acid-suppliers" rel="nofollow"> Nitric Acid Suppliers </a>Tradeasia Internationalhttps://www.blogger.com/profile/16763705122954824224noreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-44548777984232514092018-02-10T03:45:37.251+08:002018-02-10T03:45:37.251+08:00You can add a few prills of Urea to the finished p...You can add a few prills of Urea to the finished product also to remove the rednessAnonymoushttps://www.blogger.com/profile/10753447843028472838noreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-77074608444106421822015-10-12T23:56:10.411+08:002015-10-12T23:56:10.411+08:00Hi psycronizer~ Ha ha~ You got the point. Many peo...Hi psycronizer~ Ha ha~ You got the point. Many people asked me the same question about the removal of excess NO2 from the nitric acid. A recommended way to remove NO2 from the fresh distilled nitric acid is bubbling dried nitrogen gas or CO2 gas to drive out the solving NO2. This method is an application of Dalton's partial pressure rule. Another way, which I just figured out but never tried, is adding some "H2O" to react with NO2 and then producing HNO3 until the yellow or brown color is vanished. This method is worth to try, but the controlling of addition of water could be very important. Adding water drop by drop may be the simplest way. The other way, I think it may work well, is as follow: 1. Prepare a sealable container large enough to put other two smaller beakers in. 2. Pour the fresh distilled HNO3 in one beaker, and fill another beaker with some water. 3. Put these two beakers in the same container and seal it. 4. Just wait for hours for reaching the pseudo-equilibrium of vapor pressure and the yellowish color, NO2, in the HNO3 may be quenched by water vapor which is from another beaker. (These are all by my prediction :D, if you found it works well please inform me and also put my name in your article as a coauthor~ :D)Le Luhttps://www.blogger.com/profile/02630054521054204359noreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-63742105977869250862015-10-11T08:25:08.191+08:002015-10-11T08:25:08.191+08:00Hi Lu Le ! I must admit it is so refreshing to fin...Hi Lu Le ! I must admit it is so refreshing to find someone who is so open and easy going, I'm sure you know what I mean, the more qualified organic chemist's become, I feel they loose their "casual fun" nature for enjoying even the simple things in chemistry! (are you thinking-this isnt organic chemistry! oh, but it is! because concentrated nitric acid always loves to wreck carbon based molecules! like the way it is attacking the vacuum tube on your condenser! ha! (joke) anyhow, without having to research too much, I wonder if I may just ask you this-what would be the most single most effective way of keeping the yellow NO2 out of end product? more precise temp. control? higher vacuum? I know for nearly all purposes it doesnt matter, but just for asthetics, you know, its nice to have something "pure" , yes?.Anonymoushttps://www.blogger.com/profile/16177775839975858383noreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-76822464957779350042014-07-20T15:44:11.552+08:002014-07-20T15:44:11.552+08:00你說得沒錯~ You are right haha~你說得沒錯~ You are right haha~Le Luhttps://www.blogger.com/profile/02630054521054204359noreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-49917568820021720052014-07-20T15:42:10.773+08:002014-07-20T15:42:10.773+08:00That's great~ Keep going, science is cool~That's great~ Keep going, science is cool~Le Luhttps://www.blogger.com/profile/02630054521054204359noreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-59676703759627686542014-07-20T06:03:37.000+08:002014-07-20T06:03:37.000+08:00If you wanted to dilute to something like 68% you ...If you wanted to dilute to something like 68% you would simply add the acid to the water until you have the right concentration, 对不对? (learning Chinese hehe)Anonymoushttps://www.blogger.com/profile/12037900075386539724noreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-737515868670159172014-01-14T01:18:39.297+08:002014-01-14T01:18:39.297+08:00good blog ... helped a lot in my chem project... i...good blog ... helped a lot in my chem project... i'm a 12th grade student from India,,Anonymoushttps://www.blogger.com/profile/03040323275815883284noreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-66108559344728047112013-12-23T14:20:32.794+08:002013-12-23T14:20:32.794+08:00Thanks~Thanks~Le Luhttps://www.blogger.com/profile/02630054521054204359noreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-53026216097662294002013-12-23T07:53:33.393+08:002013-12-23T07:53:33.393+08:00Thanks Lu Le! I just found your website and find i...Thanks Lu Le! I just found your website and find it very intersting as we share the same passion!<br /><br />Greetings from Québec, Canada!<br /><br />Keep up the good work my friend! <br /><br />Jean-MarcAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-59320333282297510302013-11-05T10:26:26.490+08:002013-11-05T10:26:26.490+08:00Sure! It's my honor. Please send email to me(l...Sure! It's my honor. Please send email to me(lulelaboratory@gmail.com).Le Luhttps://www.blogger.com/profile/02630054521054204359noreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-82242256614356664172013-11-04T03:51:11.372+08:002013-11-04T03:51:11.372+08:00Hello Lu Le,
I live in england and Have produced ...Hello Lu Le,<br /><br />I live in england and Have produced 100ml of colourless nitric acid through vacuum distillation.<br /><br />This took alot of effort and great care was taken to ensure the conditions were perfect.<br /><br />Would be good to chat. I have email or skype if you have the time.<br /><br />Regards.<br /><br />Rob.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-77198067429428957232013-05-25T18:10:52.891+08:002013-05-25T18:10:52.891+08:00Thanks for your compliment.Thanks for your compliment.Le Luhttps://www.blogger.com/profile/02630054521054204359noreply@blogger.comtag:blogger.com,1999:blog-2878031054271009109.post-53684662985483677672013-05-25T14:17:15.531+08:002013-05-25T14:17:15.531+08:00Nice post. You have put reaction in post, I like i...Nice post. You have put reaction in post, I like it very much.Jenny Danielshttp://www.100salts.com/CategoryProducts.aspx?GroupId=1&CategoryName=Industrial+Acidsnoreply@blogger.com