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How do you prepare 100ppm standard flouride solution from SPADNS method?
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How much methanol needed to make 100 ppm solution in 100ml water?
100ppm means, you need 100mg in 1oooml. Thus, for 100ml solution, you will need 10mg of methanol to make 100ppm solution.
What is the Character for Proban Anti-flaming Treatment?
Proban anti-flaming fabric adopts the craft of PROBAN, which is famous on the international. This anti-flaming method has great washing durable performance, non-toxic, non-smell and no stimulation, air and water permeability , suitable wearing . it's eco friendly performance passed TESTEX certificate , and meet the OEKO-TEX STANDARD 100 requirement. It's anti-flaming performance and heat barrier property passed EN 11611（EN470-1）、EN11612（EN531）、ASTMD6413、NFPA2112、BS5852、ASTMF1506 test under the authority of SGS、TUV、BTTG. PROBAN: the theory is using polyphosphoric acid and special finishing craft to process cotton fabric, make fabric carbonized quickly faced the heat, comes out the isolated layer, the fabric will stop burning immediately, up to self-extinguish, so that it has anti-flaming property via shorten the time of after flame and smolder. The fabric being treated by anti-flaming process has the great wash durable performance, if kept in good condition, the clothing using time is longer with the anti-flaming property, generally, washing 50 times the anti-flaming index is still kept in the standard index. Advantage: great anti-flaming property, low strength damage( below 10%), non-smell, lower cost. Disadvantage: formaldehyde content＞100ppm, Proban processed fabric touched not softer than CP processing, after flaming fabric changed a lot on color. PYPOVATEX CP: HUNTSMAN's brand Pyrovatex CP New pure cotton process skill , which is Switzerland ciba fine chemical company 's patent. The theory is using anti-flaming chemical acids of having Pyrovatex CP New patent and its process skill to treat the cotton fabric, largely shorten the time of after flame and smolder, up to self-extinguish, so that having the anti-flaming property. The fabric treated by Pyrovatex CP New anti-flaming process, which having great washable performance, generally, washing 50 times the anti-flaming index is still kept in the standard index. Besides, Pyrovatex CP New processed fabric touched soft , non-smell ,and also can reach Oeko-Tex Standard 100 eco-friendly standard, it's green anti-flaming product, non-toxic to human body . the technology also reached the mix function, having the property of oil-water proof and anti-crease or other function together, produce multi-functional flame retardant fabric. Advantage: great anti-flaming property, formaldehyde content≤ 80 ppm,meet the eco-friendly requirement, touched softer, after flaming process effect color fastness little on original cloth. Disadvantage: more strength damage(15-20%), more cost relatively.
What is the maximum level of CO2 to survive on the earth?
Carbon Dioxide is a very minor part of our atmosphere... It has varied between about 0.03% and 0.04%, or about 300 to 400 parts per million, with the increase over the last 50 years being approximately 0.01%.Toxicity levels are much higher. The US OSHA recommends levels less than 0.5%, or about 10 times current levels, but the human body can tolerate with mild discomfort levels up to about 2% with mild discomfort, and long term adaptation... or about 50 times the current levels.http://en.wikipedia.org/wiki/Carbon_dioxide#ToxicityAccording to estimates, carbon dioxide levels naturally have varied by about 0.01% or 100ppm in cycles... but we are currently at the highest level in 400,000 years.See Wikipedia:http://en.wikipedia.org/wiki/Carbon_dioxide_in_Earth's_atmosphereHowever, estimates of carbon dioxide levels in the distant past indicate that the levels may have been much higher 100 to 300 million years ago, when Dinosaurs roamed the planet. These levels would have been approximately 1000 to 2000 PPM, or the range of 1% to 2%, and perhaps even higher 400 million years ago.See the additional chart from the above Wikipedia article.This doesn't mean the consequences of such extreme increases in carbon dioxide might not be traumatic for the world as we know it.The above images were distributed by Wikipedia in the links above, and are in the Public Domain.
What would happen if we had too much greenhouse gas?
Global warming, the gases form a blanket around the earth and the heat or radiation produced by the earth cannot escape from the planet and as such the temperature rises resulting in a warmer Earth.
Write a note on global warming?
GLOBAL WARMINGMany scientists agree that the earth is warming up due to the addition of anthropogenically produced greenhouse gases (CO2, CH4, NOx) to the atmosphere. Current estimates place the expected level of global warming over the next century to be between 1.0 and 4.5 oC. Recent ocean research suggests that the higher end estimate is closer to the truth based on increased heat storage in the oceans.An increase of 3oC would make this the warmest period in the past 100,000 years, while an increase of 4oC would make the earth the warmest its been since the Eocene Epoch about 40,000,000 years ago.While the absolute degree change would not make the planet warmer than it has been in the past, the rate at which that change takes place could have major effects on species diversity. Current estimates would put the rate of change at between 15 and 40 times the rate of past natural changes.Changes in the global temperature patterns would trigger widespread alterations in the rainfall pattern, with some areas receiving a major increase in rainfall, while others experience major droughts. A long term drying trend is predicted for summers in mid-latitude interior continental regions, with up to a 40% decrease in precipitation in the US Great Plains.Increased concentrations of CO2 may accelerate the growth of some plants at the expense of others which would destabilize natural communities. Greater warming is expected to occur in higher latitudes, suggesting that temperate and arctic species would be placed in greater danger than their tropical relatives. While continued melting of the ice caps would raise sea level, flooding coastal areas.
How do you prepare 1 liter of 100ppm NaCl solution?
Dissolve 100 mg NaCl in 1.0 Litre water.
How much methanol needed to make 100 ppm solution in 100ml water?
100ppm means, you need 100mg in 1oooml. Thus, for 100ml solution, you will need 10mg of methanol to make 100ppm solution.
What does a bleach sanitizing solution usually consist of?
50-100ppm solution of chlorine and bleach
What is 100ppm in sodium chloride?
This is a solution containing 100 mg NaCl/L.
How to make mannitol standard of 1ppm 10ppm 100ppm 500ppm and 1000ppm diluted in deionized water to generate a linear standard curve and need to make a total assay of 0.2 ml each from the stock?
take 1mg (0.001g) of mannitol and dilute it by deionised water to 100ml in 100ml measuring flask.The resulting solution is 10ppm.and then make further dilution to prepare required concentration.
How do you prepare solution of 1ppm from 1000 ppm solution?
Make a 1 to 100 dilution of the original 1000 ppm solution. That is take 1 ml and dilute to 100 ml, or take 10 ml and dilute to 1000 ml. This will give you a 10 ppm solution.
How do you prepare 100ml of 100ppm sol from 1000ppm sol?
By N1 V1 = N2 N2 1000 V1 = 100 * 100 V1= 100 * 100 / 1000 V1= 10 ml taken 10 ml from 1000 ppm and completed in 200 ml.
What is 100 microns equal to?
Dont know yet
What does nitrogen do to ponds?
Nitrogen takes up oxogen in fresh bodies of water. If there is too much Nitrogen, it can kill a fresh body of water such as a pond. A sustainable amount of Nitrogen would be 1-100ppm (parts per million). Anything above 100ppm is unhealthy. Anything above 200ppm can destroy an entire ecosystem. Hope this was helpful!
How do you prepare 100ppm chloride solution from sodium chloride?
1. Weigh 165,7 mg ultrapure NaCl dried at 110 0C for 30 min.2. Transfer NaCl in a clean 1 L volumetric flask using a funnel.3. Wash the funnel with 0,9 L demineralized water.4. Put the flask in a thermostat and maintain 30 min at 20 0C.5. Add demineralized water up to the mark.6. Stir vigorously and transfer in a clean bottle with stopper.7. Add a label with necessary information
What causes black mold in swimming pool?
Type your answer here... PH-7.5 TEM-76f CH-100ppm TA-50ppm 125,000 gallons (imperial)
What is the tolerance level of the mycotoxin Zearalenone in cattle feed?
There is no established tolerance limit for Zearalenone, but because it is produced by a fusarium, I would say the limits should be similar to vomitoxin (also produced by a fusarium. Acceptable vomitoxin levels in the corn ranges from 5-100ppm depending on species. Just to give an idea, acceptable levels in the corn are 20ppm for swine, 30ppm for breeding cattle/poultry, 60ppm for slaughter cattle, and 100ppm for slaughter poultry. For accepted level in finished feed product, cut those numbers in half.
