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Is there any PTFE Teflon in UHMW-PE ultra high molecular weight polyethylene?
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What is the expansion ratio of lpg gas?
Of course it depends on the target pressure and temperature, so I don't have an exact answer, but I can show you how to make a good guess can form the density of liquid propane and the ideal gas law. The density of the liquid material at average sea-level atmospheric pressure and at its boiling temperature I have looked up and found to be 582 kg/m3. The gas at 25 C and average sea-level atmospheric pressure has a density of (moles*Molecular weight)/Volume = (Pressure*molecular weight)/(ideal gas constant*absolute temperature). Pressure = 1 atmosphere Molecular weight = 0.0441 kg/mole Ideal gas constant = [0.00008206 M3 Atm / K] Absolute temperature = 298.15 (i.e., 25 C) or density = 1 Atm * 0.0441 kg/mole / (0.00008206 M3 Atm /K * 298.15 K) = 1.8025 Kg/M3 Literature seems to say 1.8324 Kg/M3 (which is the same as g/L). This is simply because the ideal gas law is only an approximation -- this gas is close to it liquefaction point, so it is showing some discrepancy from ideal behavior. The expansion Ratio to get to standard conditions is therefore close to 582/1.80, or ~320
What is weight of 100 octane aviation gasoline?
6 pounds per gallon
What is the density of foamed nitrile rubber?
Dividing weight by volume . W/v - kg/m3.
What is uniformity coefficient?
The measure of variation in particle sizes of filter and ion exchange media. The coefficient is defined as the the ratio of the sieve size that will permit passage of 60% of the media by weight to the sieve sieve size that will permit passage of 10% of the media material by weight.
Does Oil refineries use process costing?
Yes. depending on the type of crude that is processed actual output of the different type of product yield in % weght is determined through a material balance or bass balance process. The total cost is then apportioned by the weight of each product yield. The weight is then converted to volume which is used in dividing the apportioned cost to arrive at the unit cost of each type of prouct yield from the refining process.
What is the cost of ultra-high molecular weight polyethylene?
rate of uhmwpe made by reliance is around Rs. 106/= per kg. rate of uhmwpe made in china(ISO (9001) is around Rs. 155/- per kg.
How do you calculate number average molecular weight given molecular weight range and fraction?
Molecular weight is just an older term for molar mass. They are the same.
What is the average molecular weight of polytetrafluoroethylene or Teflon?
53,720 g/mol
What is the cost of ultra high molecular weight polyethylene?
200 rs./kg
Is UHMW a thermoset plastic?
UHMW stands for Ultra High Molecular Weight. Now it depends what the monomer is. UHMWPE would be thermoplastic not thermoset. But other UHMW polymers can be thermoset. It depends.
What is the chemical information for High Molecular Weight Polyethylene from Polymerweb HMWHDPE?
jkdfn,mmhnjn ncam,cjdx,mnjhhjjdxhjcnhfnhj ccfcd
Is polyethylene glycol used in auto antifreeze?
yes low molecular weight polyethylene glycol is used for automotive anti-freeze. most commonly used ones are ethylene glycol or propylene glycol
What has the author Bart D Colenbrander written?
Bart D. Colenbrander has written: 'Ultrasonic welding of roll-drawn high molecular weight polyethylene tapes'
What is the size of a methanol molecule?
There is no set size for molecules. The smallest molecule is H2--two atoms of hydrogen bonded together. It is the smallest molecule because it's made of two of the smallest atom. At the other end of the scale is ultra-high molecular weight polyethylene, with molecular weights in the millions. If you worked at it, you could make a UHMW molecule that could be seen with the naked eye. Teflon is another huge molecule.
Is polyethylene glycol a fungus?
No, it is not. It's a glycol, which is a type of alcohol. It's also a "polymer" (PEG is typically fairly low molecular weight and might better be called an oligomer).
How does polyethylene differ from oil grease and wax?
The main differences are in molecular weight and cross-links. Polyethylene plastic is generally hundreds of thousands, if not millions in molecular weight. Oil is much lower in MW, grease a bit higher, and wax higher than grease. Molecular weight relates to viscosity, so gasoline would be very low, in the 100–200 MW range. Oil would be several hundred to about a thousand. Grease would be around a thousand to 2000. Wax would be a few thousand. Generally, plastics won’t have much strength until they are around 20–40 thousand MW.
What is the molecular weight of chymotrypsin?
It has a molecular weight of 21,600 Daltons
