The 13 letter word is Contaminating - the act of making impure or unit for use
pollution
Filtration generally results in a liquid that is free of solid particles, making it purer. However, it may still contain dissolved impurities or contaminants that the filtration process does not remove.
in short, crtstallisation is the method that is used to purify the substance.crude product is an impure substance.so,if we want to purify a substance then we have to use crystallisation process.therefore there is a need to crystallise a crude product.
Then use electrolysis to transfer all the copper from the impure anode to the cathode.
Determining the melting ranges of impure and recrystallized samples of vanillin is important because it helps assess the purity of the compound. A narrower melting range for the recrystallized sample indicates higher purity, while a broader range for the impure sample suggests the presence of impurities. This information is crucial for quality control and ensuring the vanillin is suitable for its intended use.
contaminating
most resources are impure and unfit for use. they have to processed to produce consumable goods.
pollution
The water was impure because it had loads of mud in it.
Impure iron has higher carbon content, making it more brittle and prone to cracking. When the iron is bent, it redistributes the stresses and strains within the material, making it less likely to break. Therefore, impure iron straight from the blast may be more susceptible to failure compared to bendy iron.
Because of his criminal record, he was unfit for this position in the company.
The soul of the sinner was impure. (I know it sounds religious, but that's all I could think of )
A refinery will pay less for impure gold than pure gold.
Generally an impure material is cheaper than a pure material; the word advantage is not so adequate here - can use pure or impure, this depends on the specific applications.
The term "impure blood" is not medical in nature. The only context in which I've heard it used is when racist people refer to anyone whose ethnicity is different from his or her own as having "impure blood". So, in the eyes of the people who actually use this term, being born to the wrong parents causes impure blood. Sometimes "impure blood" can mean the deoxygenated blood that the veins transport from the rest of the body to the heart as opposed to the oxygenated blood that arteries transport from the heart to the rest of the body. In fewer words, "impure blood" is a term that can be used to refer to blood without oxygen.
Filtration generally results in a liquid that is free of solid particles, making it purer. However, it may still contain dissolved impurities or contaminants that the filtration process does not remove.
If you mean unfit for use (as in food) then the same word