5 ms·

> IPA70/Sporklenz OK, searching on that term brings up an impressive number of PDF data sheets. IPA70 seems to mean Isopropyl Alcohol, 70%. Sporklenz no idea

> IPA70/Sporklenz OK, searching on that term brings up an impressive number of PDF data sheets. IPA70 seems to mean Isopropyl Alcohol, 70%. Sporklenz no idea but it conjured up images of a European Homer Simpson repping cleaning products as _Mr. Sporklenz._ (Herr Sporklenz?)

milankragujevic 7y ago
https://www.sterislifesciences.com/products/surface-disinfectants/sporicide-cleaners-and-sterilant/spor-klenz-ready-to-use-cold-sterilant https://www.sterislifesciences.com/products/surface-disinfec...
- themodelplumber 7y ago
  > Spor-Klenz® Ready-to-Use Sterilant > cleanroom disinfectant, sterilant and sporicidal cleaner Ah...got it. Thank you. > Odor: Vinegar Ewww. Hope it's not too bad. I wouldn't want a strong vinegar smell in my clean room. Also interesting: "Spor-Klenz RTU sterilant was found to be effective against mouse hepatitis virus, minute virus of mice, murine norovirus, murine para influenza virus type 1 (Sendai) and Human Immunodeficiency Virus (HIV-1) when tested according to EPA guidelines undiluted for 10 minutes at 20°C (68°F) exposure. Spor-Klenz RTU sterilant was found to be effective against mouse parvovirus when tested according to EPA guidelines undiluted for 25 minutes at 20°C (68°F). Treated surfaces must remain completely immersed for 25 minutes."
  - cwkoss 7y ago
    That hyphenation makes a lot more sense, I was parsing it as 'spork-lenz'
    - TeMPOraL 7y ago
      Yup, me too. Something sounding like "spore cleanse" makes a lot more sense in this context than "spork lens".
    - pbhjpbhj 7y ago
      Fork, spoon, and magnifier all in one! Sporklenz!
drewmol 7y ago
Not sure about Sporklenz but yes IPA70 is referring to an Isopropyl Alcohol solution of 70% isopropyl alcohol. Higher concentrations are also effective but above 75% you risk burn or excessive drying upon direct skin contact. FWIW, a 99% concentration will very quickly pick up atmospheric moisture and stabilize closer to 96% in all but the most dry of environments.
- Scoundreller 7y ago
  > Not sure about Sporklenz but yes IPA70 is referring to an Isopropyl Alcohol solution of 70% isopropyl alcohol. Higher concentrations are also effective but above 75% you risk burn or excessive drying upon direct skin contact. FWIW, a 99% concentration will very quickly pick up atmospheric moisture and stabilize closer to 96% in all but the most dry of environments. During a previous outbreak that led to hand sanitizer getting hard to find/expensive, I just dumped a bunch of 70% rubbing alcohol into my existing bottle once it gets half empty.
- dTal 7y ago
  50-70% IPA is actually a more effective disinfectant than 99%; the water helps it penetrate cell walls, I'm told.
  - inferiorhuman 7y ago
    The water slows down the evaporation letting it linger long enough to be useful (at least that's what I think I read). Either way, 70% is gentler on skin. 90%+ is great for cleaning oily stains and whatnot.
- kens 7y ago
  The chemistry is kind of interesting. If you distill isopropyl alcohol, you can't get more concentrated than 91% because it forms an azeotrope. That is, if you try to distill 91% isopropyl alcohol, the vapors are also 91% concentration, so distillation doesn't get you any further. Thus, 91% isopropyl alcohol is a common product. Similarly, ethanol forms an azeotrope at 95% concentration, so you can't distill higher than that. This is why, for instance, Everclear has a 95% alcohol concentration. (You can produce higher concentrations, of course, but it requires a more expensive process than distillation.) https://en.wikipedia.org/wiki/Azeotrope https://en.wikipedia.org/wiki/Azeotrope

milankragujevic 7y ago

https://www.sterislifesciences.com/products/surface-disinfectants/sporicide-cleaners-and-sterilant/spor-klenz-ready-to-use-cold-sterilant https://www.sterislifesciences.com/products/surface-disinfec...

themodelplumber 7y ago
> Spor-Klenz® Ready-to-Use Sterilant > cleanroom disinfectant, sterilant and sporicidal cleaner Ah...got it. Thank you. > Odor: Vinegar Ewww. Hope it's not too bad. I wouldn't want a strong vinegar smell in my clean room. Also interesting: "Spor-Klenz RTU sterilant was found to be effective against mouse hepatitis virus, minute virus of mice, murine norovirus, murine para influenza virus type 1 (Sendai) and Human Immunodeficiency Virus (HIV-1) when tested according to EPA guidelines undiluted for 10 minutes at 20°C (68°F) exposure. Spor-Klenz RTU sterilant was found to be effective against mouse parvovirus when tested according to EPA guidelines undiluted for 25 minutes at 20°C (68°F). Treated surfaces must remain completely immersed for 25 minutes."
- cwkoss 7y ago
  That hyphenation makes a lot more sense, I was parsing it as 'spork-lenz'
  - TeMPOraL 7y ago
    Yup, me too. Something sounding like "spore cleanse" makes a lot more sense in this context than "spork lens".
  - pbhjpbhj 7y ago
    Fork, spoon, and magnifier all in one! Sporklenz!

drewmol 7y ago

Not sure about Sporklenz but yes IPA70 is referring to an Isopropyl Alcohol solution of 70% isopropyl alcohol. Higher concentrations are also effective but above 75% you risk burn or excessive drying upon direct skin contact. FWIW, a 99% concentration will very quickly pick up atmospheric moisture and stabilize closer to 96% in all but the most dry of environments.

Scoundreller 7y ago
> Not sure about Sporklenz but yes IPA70 is referring to an Isopropyl Alcohol solution of 70% isopropyl alcohol. Higher concentrations are also effective but above 75% you risk burn or excessive drying upon direct skin contact. FWIW, a 99% concentration will very quickly pick up atmospheric moisture and stabilize closer to 96% in all but the most dry of environments. During a previous outbreak that led to hand sanitizer getting hard to find/expensive, I just dumped a bunch of 70% rubbing alcohol into my existing bottle once it gets half empty.
dTal 7y ago
50-70% IPA is actually a more effective disinfectant than 99%; the water helps it penetrate cell walls, I'm told.
- inferiorhuman 7y ago
  The water slows down the evaporation letting it linger long enough to be useful (at least that's what I think I read). Either way, 70% is gentler on skin. 90%+ is great for cleaning oily stains and whatnot.
kens 7y ago
The chemistry is kind of interesting. If you distill isopropyl alcohol, you can't get more concentrated than 91% because it forms an azeotrope. That is, if you try to distill 91% isopropyl alcohol, the vapors are also 91% concentration, so distillation doesn't get you any further. Thus, 91% isopropyl alcohol is a common product. Similarly, ethanol forms an azeotrope at 95% concentration, so you can't distill higher than that. This is why, for instance, Everclear has a 95% alcohol concentration. (You can produce higher concentrations, of course, but it requires a more expensive process than distillation.) https://en.wikipedia.org/wiki/Azeotrope https://en.wikipedia.org/wiki/Azeotrope