PEG 400 is not toxic.
The brand name for hypromellose-glycerin-peg 400 ophthalmic drops is usually known as Systane Ultra or a similar variation of it.
100-400 USD
PEG means "polyethylene glycol." (To keep from typing that huge term over and over I'll call it PEG.) It, and propylene glycol, are the only two glycols that can be consumed by people without killing them. PEG is used, among other things, as a laxative. The 400 refers to its molecular weight--PEG 400 is a fairly thin product. There are many uses for PEG in cosmetics. It's a preservative, it absorbs moisture, it's kinda slippery but at the same time sticks to skin and other makeup sticks to it so it makes the product feel better when you apply it, but one of the biggest reasons to use it is it's what's called a "mutual solvent." There are many chemicals that won't dissolve in water, but will dissolve in PEG. Water also dissolves in PEG, so if you put water, a chemical that won't dissolve in water (like many oils) and PEG together, the water and oil will both dissolve in the PEG and you'll get what you want.
Depends on if the grips are factory. Value range 100-400 USD
The value was 400. The value of numbers is not dependent on time!
PEG means "polyethylene glycol." (To keep from typing that huge term over and over I'll call it PEG.) It, and propylene glycol, are the only two glycols that can be consumed by people without killing them. PEG is used, among other things, as a laxative. The 400 refers to its molecular weight--PEG 400 is a fairly thin product. There are many uses for PEG in cosmetics. It's a preservative, it absorbs moisture, it's kinda slippery but at the same time sticks to skin and other makeup sticks to it so it makes the product feel better when you apply it, but one of the biggest reasons to use it is it's what's called a "mutual solvent." There are many chemicals that won't dissolve in water, but will dissolve in PEG. Water also dissolves in PEG, so if you put water, a chemical that won't dissolve in water (like many oils) and PEG together, the water and oil will both dissolve in the PEG and you'll get what you want.
50-400 USD depending on specifics
It represents 400 = four hundred
400,000
400 K is higher than 300F. To convert Fahrenheit to Kelvin, you would first convert Fahrenheit to Celsius and then to Kelvin. So, 400 K is higher than 300F.
A common catalyst used in the esterification of PEG-400 and stearic acid is sulfuric acid (H2SO4). This acid catalyst helps to facilitate the reaction between the hydroxyl groups in PEG-400 and the carboxylic acid groups in stearic acid to form the ester product. Additionally, other acid catalysts such as p-toluenesulfonic acid (PTSA) may also be used for this esterification reaction.