Use wide bore tips– especially for 80 % glycerol, as these will enable the liquid to enter the tip more easily Use reverse pipetting– as it may be difficult to completely empty the tip with normal pipetting methods, due to the attachment of the liquid to the tip wall Keep the tip in ...
How to Make Competent Cells Step 1: Take an 100 mL aliquot of frozen cells from the -80oC and innoculate about 500 ml to 1 L sterile LB broth. DO NOT ADD antibiotic, since these cells do not have an plasmid in them. Work as sterile as possible. Step 2: Grow the cells on a ...
Fermenting Sugar Wash To Make Alcohol for Hand Sanitizer Now an Air still is by far the simplest tool to use for this and I think for the majority of people reading this it will work great for all your hand sanitizer needs. At the end of the day it’s a glorifiedpot stilland if you...
I’m not gonna lie, lye used to scare the stuffing out of me, and that was the reason it took me so many years to finally make soap. There was an incident in our community involving a young child and lye that compounded my fear, and since I lived at home with so many young sibli...
Some hand sanitizers contain isopropyl alcohol (UN 1219) instead of ethanol (UN 1170); some contain both, and can also include small amounts of hydrogen peroxide solution in addition to glycerol and sterile water.. How much are you shipping, and in what size containers? The current limit fo...
the process occurs the glycerine gravitates to the bottom of the container leaving alkyl esters, the glycerol is then drained off and the remaining top liquid is biodiesel. The biodiesel is often then washed to remove any remaining impurities and can then used to fuel an unmodified diesel ...
We all want to do our best to take care of our skin, which is why it’s so important to make sure that we know what kind of ingredients are in our skincare and cosmetic products. As a conscious makeup user, I want to know what kind of ingredients may or may not be safe, how ...
Jump to recipe I’m a total baking addict. Confession: today I made two pies, not because I had anything special going on, but just because I really wanted pie. When you bake a lot, you go through a lot of extracts. Hence the need for this how to make mint extract tutorial. ...
I want to make three string lengths, so I start with L = 305 cm. I choose a twist coefficient of 32 (enough body, but good flexibility as well). It might be important to touch slightly on the question of the amount of twist for silk strings. Whereas overall the strings twisted to ...
Of course, other factors come into play when it comes to having clear skin, like the makeup you use, your cleanser and how well it removes pollutants and impurities, your skin's natural oils, and the rate at which your skin cells turnover and shed evenly. Noncomedogenic skincare uses in...