0
These are compounds that absorb or adsorb water vapour from air. Some may absorb so much water they actually dissolve in the water they have absorbed and one is left with a solution. Instant coffee granules will do this, left for a few hours, they turn from powder to a gooey puddle. The hygroscopic properties of silica gel are commonly used to keep some foods, drugs and electronic equipment dry by including little sachets of the silica in the packaging of these products. Often, a small amount of cobalt II chloride is added to the silica pellets giving them the added ability to change colour depending upon how much water they have absorbed. When completely dry, the pellets are a strong blue colour and when they have absorbed water they turn a pale pink. Pale pink silica pellets may be returned to blue ones by heating in an oven, thus rendering them capable of re-use.
Wiki User
∙ 15y ago
Wiki User
∙ 9y agoHygroscopic compounds absorb water when it comes in contact with the source. These types of compounds are often used in antiperspirants.
Add your answer:
Earn +20 pts
Compounds that hold water?
Compounds that have an affinity for water are known as hygroscopic. If the affinity is strong enough to attract water until the compound goes into solution, they are called deliquescent.
Is acetone hygroscopic?
Acetone is not known as hygroscopic.
2 Why is it wrong to leave a bottle of anhydrous sodium sulphate or calcium chloride open?
Because they are highly hygroscopic compounds and absorb moisture from air.
Is ethanol considered to be hygroscopic?
Hygroscopic substances include cellulose fiber such as ethanol, methanol and diesel fuel. As hydrogen bonding causes pure ethanol to readily absorbs water from the air, ethanol is considered to be hygroscopic.
Is potassium gold cyanide hygroscopic?
In crystalline form it's non-hygroscopic, or has only slight hygroscopicity. In powder form it is, yes.
What is the definition of standardization of hygroscopic compound?
those compounds which have ability to absorb water from its surroundings are known as hygroscopic compounds
Compounds that hold water?
Compounds that have an affinity for water are known as hygroscopic. If the affinity is strong enough to attract water until the compound goes into solution, they are called deliquescent.
When Compounds have an affinity for water are said to be?
Hygroscopic.
What is a family of compounds that can hold water?
hygroscopic compounds, polyacrylamide, sodium acrylate, etc.
What is a compound that gains so much water that can be used to dry other substances?
These compounds are hygroscopic and are called dessicants.
What is the opposite of Hygroscopic?
Non-Hygroscopic
Is acetone hygroscopic?
Acetone is not known as hygroscopic.
2 Why is it wrong to leave a bottle of anhydrous sodium sulphate or calcium chloride open?
Because they are highly hygroscopic compounds and absorb moisture from air.
Where can you get hygroscopic material?
The hair of the tail of horse is hygroscopic material.
WHAT refrigerant oil is hygroscopic?
Polyol Ester is also hygroscopic
Is an unknown being weighed is hygroscopic?
An unknown being weighed is hygroscopic.
Hygroscopic substances and their use?
Hygroscopic substances are used to absorb humidity.
