Forum Replies Created

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  • Fekher

    Professional Chemist / Formulator
    April 30, 2020 at 1:12 pm in reply to: Gel based Hand sanitizer

    @em88 that what Lubrizol Said. 
      So do you think that Lubrizol can be wrong?! 

  • Fekher

    Professional Chemist / Formulator
    April 30, 2020 at 12:03 pm in reply to: Gel based Hand sanitizer

    @em88 may the purity of your IPA and Ethanol are fake that’s why you could do it ?
    I also try it below 70% IPA approximately 60% end with precipitation. If the purity of your product are right that leads to say Lubrizol data are fake? really I don’t think soo… 
    What do you think @Perry @Gunther @Pharma @lmosca @Chemist77 @Cafe33 @ngarayeva001

  • Fekher

    Professional Chemist / Formulator
    April 28, 2020 at 12:26 pm in reply to: Gel based Hand sanitizer

    You are welcome @hrajan

  • Fekher

    Professional Chemist / Formulator
    April 28, 2020 at 12:12 pm in reply to: Liquid Hand Wash

    @yash42440 actually your formulation seems acceptable may I guess that the problem is from the quality of your ingredients.

  • Fekher

    Professional Chemist / Formulator
    April 28, 2020 at 12:01 pm in reply to: Gel based Hand sanitizer

    @hrajan actually with TEA you will not able to reach more then 60% IPA, take a look for that. https://chemistscorner.com/cosmeticsciencetalk/uploads/editor/gn/0fbgsjljgbf9.png

  • Fekher

    Professional Chemist / Formulator
    April 28, 2020 at 11:51 am in reply to: Hydrogen peroxide for Coronavirus?

    @Doreen actually the most important thing is to know information between the concentration of hydrogen peroxide and needed contact time even for surface. But i really want to have hand sanitizer based on hydrogen peroxide.
    @chemicalmatt thanks for share so do you think that 1,5 % hydrogen peroxide can be used for hand desinfection and what is the needed time contact for such concentration? 

  • Fekher

    Professional Chemist / Formulator
    April 25, 2020 at 11:09 am in reply to: Hydrogen peroxide for Coronavirus?

    @Doreen thanks for the link, however i’am looking for product where hydrogen peroxide is the active ingredient without using any other active ingredient as alcohol in the proposed formula. 

  • Fekher

    Professional Chemist / Formulator
    April 21, 2020 at 8:17 pm in reply to: Hydrogen peroxide for Coronavirus?

    @Gunther thanks for link. 

  • Fekher

    Professional Chemist / Formulator
    April 21, 2020 at 11:50 am in reply to: Hydrogen peroxide for Coronavirus?

     Hi , have anyone researchement to read about the concentration of hydrogen peroxide and needed contact time to kill Sars-Covid-2 ?
     @Gunther @Perry @Agate @em88 @Cafe33 @Pharma @Bill_Toge @lmosca

  • Fekher

    Professional Chemist / Formulator
    April 20, 2020 at 2:19 pm in reply to: Can Ethanol 80 % be effective for Coronavirus?

    @MarkBroussard thanks for your reply however have you any reference that proves 60% Ethanol is effective for Sars_covid 2? 

  • Fekher

    Professional Chemist / Formulator
    April 20, 2020 at 1:25 pm in reply to: Can Ethanol 80 % be effective for Coronavirus?

    @ngarayeva001 that’s my thought also about the function of glycerin  in sanitizer. 

  • Fekher

    Professional Chemist / Formulator
    April 19, 2020 at 11:14 pm in reply to: Can Ethanol 80 % be effective for Coronavirus?

    @MarkBroussard So according to you 60%_70% Ethanol will be better then 80%?!
    @Perry thanks for your add.

  • Fekher

    Professional Chemist / Formulator
    April 19, 2020 at 8:11 pm in reply to: Can Ethanol 80 % be effective for Coronavirus?

    @Pharma appriciate your feedback. 

  • Fekher

    Professional Chemist / Formulator
    April 19, 2020 at 6:37 pm in reply to: Can Ethanol 80 % be effective for Coronavirus?

    @Pharma I already read all about Sanitiser here and my question about the effectiveness of Sanitiser for coronavirus without both of glycerin and hydrogen peroxide never talked in forum.
     I know that the only active ingredient in WHO sanitizer formulation is Alcohol however glycerin can be must have in WHO formulation cause it limits the evaporation of alcohol so may without glycerin alcohol will evaporate quickly and will not stay the needed contact time. (that is my scare about Sanitiser without glycerin)

  • Fekher

    Professional Chemist / Formulator
    April 5, 2020 at 6:51 pm in reply to: Dettol and thymol are effective for Covid_19!!!

    @lmosca appriciate a lot your precious add. 

  • Fekher

    Professional Chemist / Formulator
    April 5, 2020 at 4:17 pm in reply to: Dettol and thymol are effective for Covid_19!!!

    @Agate take a look at 

  • Fekher

    Professional Chemist / Formulator
    April 5, 2020 at 12:10 pm in reply to: Dettol and thymol are effective for Covid_19!!!

    @lmosca for sure the product will be diluted to adequat rate for hand using. This level can be effective for many virus and tested for hand according to WHO’s document. 

  • Fekher

    Professional Chemist / Formulator
    April 5, 2020 at 12:06 am in reply to: Dettol and thymol are effective for Covid_19!!!

    @lmosca you have right about suggested product, however Dettol Antiseptic liquid seems the right product listed in the site government of Canada. 

  • Fekher

    Professional Chemist / Formulator
    April 4, 2020 at 10:08 pm in reply to: Dettol and thymol are effective for Covid_19!!!

    @lmosca not really as you said, I see Dettol Antiseptic liquid in link from UK website and it is based on chloroxylenol 4,8%.

  • Fekher

    Professional Chemist / Formulator
    April 4, 2020 at 9:16 pm in reply to: Dettol and thymol are effective for Covid_19!!!

    @lmosca very intelligent view about which product of Dettol the site meant? 
     The most logic and reliable product about question the one you said, however I made reaserachement to discover all products of Dettol that can be effective for Covid_19 so the answer is found in UK Dettol website which said  four other products of Dettol differents from Dettol brand hand sanitizer
      Also in the site the active ingredient for Dettol’s product is chloroxylenol so as conclusion desired product is not Dettol brand hand sanitizer. 

  • Fekher

    Professional Chemist / Formulator
    April 4, 2020 at 7:37 pm in reply to: Dettol and thymol are effective for Covid_19!!!

    @lmosca interesting comment, however Dettol is found in list of approved hand sanitizers according to the site government of Canada https://www.canada.ca/en/health-canada/services/drugs-health-products/disinfectants/covid-19/hand-sanitizer.html#tbl1.
      So according to you this site is not a reliable reference?

      Just recently I readed even Singaporean government approved Dettol as effective active ingredient for Covid_19. 

     About  hydrogen peroxide which concentration is recommended  (I see very different proposed level) and what is the needed contact time? 

  • Fekher

    Professional Chemist / Formulator
    April 4, 2020 at 5:11 pm in reply to: Dettol and thymol are effective for Covid_19!!!

    No @Pharma Dettol is found in List of approved hand sanitizers. Thymol with low level is also safe for the skin as I guess. 

  • Fekher

    Professional Chemist / Formulator
    April 3, 2020 at 9:57 pm in reply to: Please help! Hand sanitizers formula

    Very interesting @lmosca can I know your University? actually i look forward to learning  pharmaceutical chemistry sciences.
     I’am process chemical engineer and i’am fun of aromatherapy and pharmaceutical sciences so I think it will be amaizing to have 
    pharmaceutical course in my case. 

  • Fekher

    Professional Chemist / Formulator
    March 29, 2020 at 2:27 pm in reply to: Hydrogen peroxide for Coronavirus?

    @Bill_Toge thanks for your share. 

  • Fekher

    Professional Chemist / Formulator
    March 28, 2020 at 11:36 am in reply to: Hydrogen peroxide for Coronavirus?

    @Cafe33 really interesting link appriciate a lot your share but the table miss one important thing which is needed contact time.
    @Pharma for sure scientifics don’t search for product which make a lot of pain. The product must have short needed time of contact ( seconds to few minutes it will be better just 1 minute which is a looked for one ) and also no or low irritant product for skin. 
      What about 3% hydrogen peroxide product I readed that it is effective for Coronavirus and it needs short needed time contact, any add about that? 

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