Search results
Results from the WOW.Com Content Network
NP-40 is an ethoxylated nonylphenol for non-ionic surfactants and can act as emulsifier and demulsifier agent. NP-40 is often used to break open all membranes within a cell, including the nuclear membrane [citation needed]. To break only the cytoplasmic membrane, other detergents such as digitonin can be used.
To make NPEs, manufacturers treat NP with ethylene oxide under basic conditions. [12] Since its discovery in 1940, nonylphenol production has increased exponentially, and between 100 and 500 million pounds of nonylphenol are produced globally every year, [ 12 ] [ 16 ] meeting the definition of High Production Volume Chemicals .
IGEPAL CA-630 has HLB of 13.4, similar to that of Triton X-100 (13.4) and thus belongs to the detergent range (HLB 13-15); this is significantly less than 17.8 of tergitol NP-40 or 16.7 of Polysorbate 20 (also known as Tween 20), which both belong in the solubilizer range (15-18) of HLB. [2] Ca-630 is completely miscible with water.
Oil dispersant mechanism of action. An oil dispersant is a mixture of emulsifiers and solvents that helps break oil into small droplets following an oil spill.Small droplets are easier to disperse throughout a water volume, and small droplets may be more readily biodegraded by microbes in the water.
A Massachusetts man was caught in the middle of some “Santa-antics” and got stuck in a chimney while trying to evade police executing a search warrant on his home.
(Reuters) -The Chinese-linked Salt Typhoon cyberespionage operation targeted AT&T and Verizon's systems, but the wireless carriers' U.S. networks are now secure as they work with law enforcement ...
These target all of the usual suspects: puffy eyes, under-eye bags, dark circles, signs of aging and dryness, all thanks to ingredients like sea moss, hydrolyzed vegetable protein and hyaluronic acid.
An overview of ranges of mass. To help compare different orders of magnitude, the following lists describe various mass levels between 10 −67 kg and 10 52 kg. The least massive thing listed here is a graviton, and the most massive thing is the observable universe.