Quick Answer: What Is Water Soluble Extractive Value?

What is water soluble ash value?

Ash value is useful in determining authenticity and purity of sample and also these values are important qualitative standards.

The total ash value, acid insoluble ash, water soluble ash was found to be 11.75%, 7.45% and 7.85%.

The Water-soluble extractive value plays an important role in evaluation of crude drugs..

What is Lycopodium spore method?

Validated modified lycopodium spore method has been developed for simple and rapid quantification of herbal powdered drugs. … This method gives the ratio of individual ingredients in the powdered drug so that any adulteration of genuine drug with its adulterant can be found out.

How do you calculate water soluble ash value?

Water- soluble ash: Subtract the weight of insoluble matter from the weight of the ash; the difference in weight represents the water- soluble ash. Calculate the percentage of water- soluble ash with reference to the air dried drug.

What is Ash made up of?

Much wood ash contains calcium carbonate as its major component, representing 25 or even 45 percent. Less than 10 percent is potash, and less than 1 percent phosphate; there are trace elements of iron, manganese, zinc, copper and some heavy metals.

What is acid insoluble?

The Acid Insoluble Ash (AIA) content is the proportion of a sample that is not hydrolysed by 72% sulphuric acid and is not subsequently volatilised upon the incineration of this Acid Insoluble Residue.

What is Ash value in pharmacognosy?

ASH VALUESThe residue remaining after incineration is the ash content of the drug.( inorganic salts of carbonates, phosphates, silicates of sodium, potassium, calcium and magnesium) is known as ash content.Ash value is a criterion to judge the identity OR purity of the crude drug.

Why Ash test is done?

The analysis of ash content in foods is simply the burning away of organic content, leaving inorganic minerals. This helps determine the amount and type of minerals in food; important because the amount of minerals can determine physiochemical properties of foods, as well as retard the growth of microorganisms.

What drug is Ash?

Ash is a tree. The seeds are used to make medicine. People use ash for diabetes, arthritis, constipation, bladder problems, and many other conditions, but there is no good scientific evidence to support these uses.

How do you calculate acid insoluble ash?

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. Calculate the content in mg of acid- insoluble ash per g of air-dried material.

What is the difference between sulphated ash and total ash?

Residue on ignition means the residue that left over on ignition, the residue may be of any kind i.e. sulphate, or TiO2 or some other metal contamination. Sulphated ash means the ash should be of the sulphate counterpart.

What is alcohol soluble extractive value?

The alcohol-soluble extractive value was also indicative for the same purpose as the water-soluble extractive value. Less extractive value indicates addition of exhausted material, adulteration or incorrect processing during drying, or storage or formulating.

How is ash value calculated?

Weigh accurately about 3 gm of the powdered drug in silica crucible. Incinerate the powdered drug by increasing the heat gradually until the sample was free from carbon and cool it keep it in a desiccators. Weigh the ash and calculate the percentage of total ash in contrast to the air dried sample.

Is Ash water soluble?

Ash, for example, is mostly insoluble in water. Only a small portion of the ash dissolves in water, and this is the substance we call potash, or potassium carbonate. To make potash, you must add your ash to a quantity of water. … The good stuff, the potash, will be dissolved in the water.

What is acid soluble ash value?

The total ash, acid- nsoluble ash, and water-soluble ash were found to be 19.146 ± 0.237, 2.351 ± 0.223, and 49.216 ± 0.634, respectively; the value of total ash indicates that the inorganic contents of the formulation are below the limits.

What is an ash test?

An Ash test is used to determine if a material is filled. The test will identify the total filler content. … An ash test cannot be used to determine the percent carbon fiber or percent carbon black since carbon burns off during the Ash test.

Is Ash salty?

Ash is one of the components in the proximate analysis of biological materials, consisting mainly of salty, inorganic constituents. It includes metal salts which are important for processes requiring ions such as Na+ (Sodium), K+ (Potassium), and Ca2+ (Calcium).

What is total ash value?

The total ash is the residue remaining after incineration. The acid insoluble ash is the part of the total ash which is insoluble in diluted hydrochloric acid. … Ash values are helpful in determining the quality and purity of the crude drugs in powder form.

What is acid insoluble ash?

Acid-insoluble ash consists primarily of silica and silicates. This material, when present in the finished paper or paperboard, can have an abrasive effect on punches, knives, slitters and dies which come into contact with paper during finishing operations.

What is extractive value?

Extractive values are used for evaluation of crude drugs when they cannot be estimated by any other method. Extractive values by different solvents are used to assess quality, purity and to detect adulteration due to exhausted and incorrectly processed drugs.

Why do we find acid insoluble ash?

I want to know the significance of ash tests performed in physicochemical analysis. Total ash test gives an estimation about purity and quality of drug. Acid insoluble ash value indicates siliceous impurities. Water soluble ash value gives an estimation of inorganic contents.