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Why do you use KOH ethanol for the isolation of piperine and What are their uses?
Wiki User
∙ 15y ago
I assume you mean ethanol + KOH? if so, in order to prevent co-precipitation of piperine and the resin acids, dilute ethanolic KOH is added to the concentrated extract to keep acidic materials in solution as their potassium salts (acid/base rxn occurs). basically it keeps impurities in solution, while piperine precipitates out.
Wiki User
∙ 12y ago
Wiki User
∙ 15y ago"http://wiki.answers.com/Q/Why_do_you_use_KOH_ethanol_for_the_isolation_of_piperine_and_What_are_their_uses"
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What is the base hydrolysis of piperine?
By addition of 10% ethanolic KOH, water and HCl
How do you make ethanolic KOH?
dissolve KOH powder in ethanol
What is the formula for the ionic compound from potassium hydroxide?
K+ and OH- is KOH -----------
How do you prepare 0.002N methanolic KOH?
Molar mass KOH = 56g/mol and 0.002 N KOH = 0.002 moles/L0.002 moles/L x 56 g/mole = 0.112 g/LDissolve 0.113 grams KOH in 1 liter or methanol, or any fraction/multiple thereof. For example, dissolve 0.0113 g KOH in 100 mls or dissolve 0.226 g in 2 liters of methanol.
How many moles are in 234.1 grams of KOH?
Molar mass of KOH = 39.1+16.0+1.0 = 56.1Amount of KOH = mass of sample / molar mass = 32/56.1 = 0.570mol
What is the base hydrolysis of piperine?
By addition of 10% ethanolic KOH, water and HCl
How do you make ethanolic KOH?
dissolve KOH powder in ethanol
How is hydrogen and oxygen bonded?
In all the compounds where O is bonded to H the bond is covalent. For example H2O water, C2H5OH, ethanol KOH potssium hydroxide
What is the formula for the ionic compound from potassium hydroxide?
K+ and OH- is KOH -----------
How do you prepare 0.002N methanolic KOH?
Molar mass KOH = 56g/mol and 0.002 N KOH = 0.002 moles/L0.002 moles/L x 56 g/mole = 0.112 g/LDissolve 0.113 grams KOH in 1 liter or methanol, or any fraction/multiple thereof. For example, dissolve 0.0113 g KOH in 100 mls or dissolve 0.226 g in 2 liters of methanol.
How many moles are in 234.1 grams of KOH?
Molar mass of KOH = 39.1+16.0+1.0 = 56.1Amount of KOH = mass of sample / molar mass = 32/56.1 = 0.570mol
Where is Koh Samui?
Koh Samui is in Thailand
Name for koh?
KOH is potassium hydroxide.
What kOH stand for?
KOH is Potassium Hydroxide.
The name for KOH?
KOH is potassium hydroxide.
Is KOH a strong weak or non-electrolyte?
KOH is a strong electrolyte
What are the parts and their meaning of an angle?
bhe bhe koh bhe bhe koh bhebhe koh baby
