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⚡ Elevate your lab and craft game with premium KOH flakes—safety, purity, and American-made power!
Essential Depot’s Potassium Hydroxide Flakes come in nine 1 lb resealable, child-resistant HDPE containers, each boasting a minimum 90% purity. Proudly manufactured in the USA via mercury-free electrolysis, these odorless, anhydrous flakes dissolve readily in water and are ideal for industrial, scientific, and soap-making uses. Non-GMO, cruelty-free, and Kosher certified, this product combines safety, quality, and ethical standards for discerning professionals.






| ASIN | B0B4FGCF2C |
| Best Sellers Rank | #65,525 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #73 in Analytical Reagents |
| Brand | Essential Depot |
| Brand Name | Essential Depot |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 115 Reviews |
| GHS Health Hazard | See SDS. |
| GHS Physical Hazard | See SDS. |
| GHS health hazard | See SDS. |
| Global Trade Identification Number | 00812841025377 |
| Item Form | dry, solid, flakes |
| Item Weight | 16 ounces |
| Manufacturer | Essential Depot, Inc. |
| Model Number | KOH-9 |
| Molecular Formula | KOH |
| Molecular Weight | 56.11 |
| Molecular formula | KOH |
| Molecular weight | 56.11 |
| Part Number | KOH-9 |
| Product Grade | FCC |
| Safety Signal Word | See SDS. |
| UPC | 812841025377 |
| Unit Count | 144 Ounce |
| Warranty Description | BEFORE HANDLING, it is important that engineering controls are operating and protective equipment requirements and personal hygiene measures are being followed. People working with this chemical should be properly trained regarding its hazards and its safe use. WHEN HANDLING, refer to the Safety Data Sheet and Product Warning Label and follow all instructions and warnings. Workers should be proper… |
E**J
The only brand I will use
This brand I have been using for years for making my liquid soap. It is trustworthy as far as quality goes and I have never had a problem with my soap making.
B**D
Good stuff
Works well in my soap making
T**R
This is an extremely high quality product.
I will never stray from Essential Depot in favor of a better price again! I bought another seller’s KOH because it was $15 for 2 Lbs. Yeah, this was also supposed to be reagent grade as well. Smh, this stuff took on water from the air so fast that within a week it was a solid mass. This is because of the inferior packaging. It wasn’t very reactive, so making potassium silicate for my plants didn’t work out so wells. With essential depot’s KOH, be careful because at first all you feel is greasy finger tips but that’s actually your natural oils being saponified because the KOH comes in superior packaging and will remain fresh indefinitely. The soap it makes is awesome, Potassium Silicate reacts at stoichiometric amounts and I have been able to use essential depot’s KOH consistently without fail. Another thing that I love is that you get to reuse the bottles which are high temperature and a mouth size of a standard chemical containment bottle and I’ve yet to see any leaks. Which is why I ordered 9 lbs. Fruit bearing plants and trees consumed large quantities of potassium, so potassium Nitrate, potassium sulfate, potassium phosphate, potassium silicate (plant strength, water retention, pest and disease resistance). So KOH is extremely useful because everything afore mentioned can be made from the conjugate base of an acid without having to actually touch the acid through reverse replacement reactions. Epsom Salt + KOH =Magnesium hydroxide (milk of magnesia) & Potassium sulfate same thing applies to that calcium ammonium nitrate thats burning plant roots can be converted to Potassium Nitrate, where the ammonia leave’s solution because there’s no complex of ammonia and potassium nitrate ( must react outdoors) and the same would apply for any other metal cation lower on the reactivity series.
M**V
Good stuff
Been ordering these for years , don’t know why I always get the big box but it’s so much cheaper and I can share with my gal pals, one bottle lasts forever
D**Y
Legit product
It is what it says it is. Works incredibly. Dissolves easily and is good value. I’d love to be individual bottles instead of dealing with a bulk bucket., I saved tons of time on measuring because it’s so easy
G**A
Debe funcionar
No lo he probado
S**N
High quality!!
Perfect for soap making and worked well! I like that the bottles are smaller so you don’t have to have a lot open at one time!
C**A
Good for soap making
Great product and price
Trustpilot
1 month ago
3 weeks ago