Home Cosmetic Science Talk Formulating Hand Sanitizer Makes Hand Sticky After Use

  • Hand Sanitizer Makes Hand Sticky After Use

    Posted by yash42440 on March 18, 2020 at 8:05 am

    The formulation of hand sanitizer which I am using is leaving stickiness on hand after use.

    CARBOPOL 940       2gm
    TEA.                           5 ml
    Alovera Gel.              30 ml
    Glycrine.                    5 ml
    Lemon Fragranc.     2 ml

    The product is also not transparent

    em88 replied 4 years, 8 months ago 7 Members · 9 Replies
  • 9 Replies
  • amitvedakar

    Member
    March 18, 2020 at 8:34 am

    No Alcohol??  google bro.

  • belassi

    Member
    March 18, 2020 at 5:16 pm

    Not expressed as proper percentages anyway.

  • lmosca

    Member
    March 18, 2020 at 8:35 pm

    According to what you have there you are using:
    4.4 % carbopol
    12.3 % TEA (are you using pure TEA?  :#)
    13.7 % glycerine (ick)
    4.4 % fragrance (it must smell like a floor cleaner)
    65 % aloe.

    I am surprised it does even look like a gel, I would say more like plumber’s putty.

    Post some real percentages if you want some feedback. 

  • Pharma

    Member
    March 18, 2020 at 8:50 pm

    lmosca said:


    I am surprised it does even look like a gel, I would say more like plumber’s putty.

    LoL!

    What a smart invention this formulation is. Bashing and bouncing the viruses to ‘death’ has many advantage: no resistance develops, you can reuse the gel ball/bat many times and can even put it to good use when it comes to enforcing social distancing or getting the last roll of toilet tissue at walmart.

  • lmosca

    Member
    March 18, 2020 at 10:00 pm

    @Pharma, and the advantage is that it increases in mass as you incorporate dirt, phospholipid membranes, glycoproteins, and more gross stuff. After a couple of days, you can split it in half and give one half away to your friends! 

    Oh boy, I am having a bad day. I need some levity.

  • ngarayeva001

    Member
    March 19, 2020 at 7:37 am

    Being devil’s advocate, Ignoring the fact it will destroy skin after several uses, with this much TEA, the pH is going to be around 12-ish I guess. Do viruses like such a pH at all? 

  • lmosca

    Member
    March 19, 2020 at 2:01 pm

    @ngarayeva001, definitely not. At that pH phospholipids and glycerides will start to saponify, proteins will denature and their chemical structure will be irreversibly changed by hydrolysis. Even so, with some much TEA, the solvent effect will probably be as important. Lipophilic stuff will likely be dissolved. TEA has a dielectric constant of around 7, which is comparable to that of ethyl acetate, so it will be extremely de-fattening.

  • ngarayeva001

    Member
    March 19, 2020 at 10:45 pm

    Thank you @imosca. Although my chemistry isn’t on the level to understand dielectric constant but it’s very informative.

  • em88

    Member
    March 25, 2020 at 9:03 am

    Oh, God.

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