Determination of Ash value of Crude Drug with Calculation | Ash Value Determination Method- English

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ASH VALUE DETERMINATION
Ash values are helpful in determining the quality and purity of crude drugs, especially in powder form. The objective of ashing vegetable drugs is to remove all traces of organic matter, which may otherwise interfere in an analytical determination. On incineration, crude drugs normally leave an ash usually consisting of carbonates, phosphates and silicates of sodium, potassium, calcium and magnesium.
At the last of this video, you will be able to answer- what is ash value, how to determine ash value, the importance of ash value, how to find ash value of any crude drug, ash value of the crude drug,
Determination of ash
1. Place about 3 g of the ground material, accurately weighed, or the quantity specified in the monograph, in a suitable tared dish (for example, of silica or platinum), previously ignited, cooled and weighed.
2. Incinerate the material by gradually increasing the heat, not exceeding 450 °C, until free from carbon; cool, and weigh.
3. If a carbon-free ash cannot be obtained in this way, exhaust the charred mass with hot water, collect the residue on an ashless filter-paper, incinerate the residue and filter-paper, add the filtrate, evaporate to dryness, and ignite at a temperature not exceeding 450 °C.
4. Calculate the content in mg of ash per g of airdried material.
Determination of acid-insoluble ash
1. Boil the ash for 5 minutes with 25 mL of hydrochloric acid (~70 g/l) TS; collect the insoluble matter in a sintered crucible, or on an ashless filter-paper, wash with hot water, and ignite at about 500 °C to constant weight.
2. Calculate the content in mg of acidinsoluble ash per g of air-dried material.
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[@josannx]

Your videos are so informative.....I wish we have teachers like you in our college .

[@sakshivaidya7069]

U r video is to much helpful mam thanku so so much mam

[@niku6465]

Which crude drug mam you taken

[@tubamalik9232]

informative and nice video

[@aravelliprakashrao3985]

Hello mam can you please tell how to make magnesium citrate and calcium citrate at home for use in easy way for supplementation.

[@yogipatel1415]

Thank you ji

[@gopalgirase-01]

Constant wt increase or decrease from w3?

[@Rishav786]

Thanks mam.....

[@solutionpharmacy]

Rishav kumar thank you for your appreciation sir.

[@rahulkumar-hz4bx]

Nice 😚😚

[@perumallachinababu6501]

In complete procedure when added sulphuric acid

[@skyandcosmos4735]

After adding the sample then u add 1 ml h2so4 for 1 gm nd 1ml water also in some procedures

[@rramachandar3774]

Why should use sulfuric acid in ash test

[@ZaiqaLahoreKa]

Maan why we perform acid soluble ash value us ka b process explaim kijeyaye ga Regards

[@solutionpharmacy]

Ok. We will try to make a video of that.

[@rihanrih63]

Good work... Well done...
Btw after removing the crucible from the weighing machine after adding the drug, then by stirring will there be any small weight reduction..

[@solutionpharmacy]

rihan rih there will be reduction of weight after placing the drug in furnence for respective time. Simply stirring without hearing wont change the weight significantly. Thanks

[@skyandcosmos4735]

Sis U heated crucible for 30 min but is it get about 600 c

[@munaalmaliki8376]

I need to determine the ash in many samples of plants, burning 30 samples in one experiment. If the burning produce a lot of fumes what can I do

[@qc5467]

usko bhi nhi pata hai jissase english bak rha hai

[@solutionpharmacy]

Respected sir. Fume can be avoided by reducing sample size.

[@squishy8758]

Put your muffle furnace in a fume hood.
(Edit: spelling)

[@abirdhauria3904]

Why empty crusible heat in muffle furnace?

[@solutionpharmacy]

To remove moisture from crucible..

[@bhumipatel9898]

If ash value is high then earthy matter is high then ash value is less then what???

[@MahmoudAhmed-dq5pm]

you should do preashing on penzen fire before but it on this machen

[@laveshgaur920]

Maidana.ka s.or.b.chek.karana

[@laveshgaur920]

Batado

[@karasalasyamnagaraju5964]

Where is charing

[@ravindrasharma5050]

👍👍

[@aditisaxena907]

why you divided by 2

[@iyappanflynn8679]

2 is the weight of the substance 2 gm taken

[@phdwalaa6722]

thank you