An antifreeze is defined as a chemical which when added to a water-based fluid, reduces the freezing point of the mixture. Antifreeze is used in a wide variety of mechanical equipment during the winter months to prevent freezing of aqueous heat transfer fluids.Ethylene glycol (EG) is the ...
25 、Cryosurgery is a clinical technology which destroys the diseased cells and tissues by low temperature injuries through the cryotherapy apparatus without any use ofantifreezeagent.───低温外科是不加任何抗冻剂、利用低温手术器械,使病灶细胞和组织达到低温损伤以致坏死的一门临床科学,它是肿瘤治疗方面近年...
Propylene Glycol A colorless viscous hygroscopic liquid, CH3CHOHCH2OH, used in antifreeze solutions, in hydraulic fluids, and as a solvent.1 Although the thermal properties of PG (propylene glycol) are less desirable that EG (ethylene glycol), there is one main advantage- it is not toxic to ...
The disadvantage of such a mixture is the increased viscosity, which, as in the previous case, causes an increase in the flow resistance. The drop in thermal power, however, is not as sensitive as in the previous case. The advantage of such a mixture is the lack of chemical aggressiveness...
Ugh… telling people to stop asking questions is the hallmark of cult behavior. I’m sure that the Bollingers and other Bob supporters don’t want to be construed as belonging to a cult with Bob as the leader, so let’s drop the “stop asking questions” and “you’re not smart ...
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This change causes a free energy reduction as the chemical potential of water becomes equal in all phases present in the system (Fennema et al., 1973). There are several classes of recrystallization such as accretive, migratory and ripening. Accretive recrystallization or accretion, is observed ...
Antifreeze proteins from polar fish species are remarkable biomacromolecules which prevent the growth of ice crystals. Ice crystal growth is a major problem in cell/tissue cryopreservation for transplantation, transfusion and basic biomedical research, a
Cats, however, need to receive treatment within 3 hours of ingestion since they are more susceptible to the toxic effects. Otherwise, the outcome for your dog or cat is poor. Remember, it takes just a few licks to cause serious damage to a cat (licking it off their paws or their fur ...
It is mainly used for two purposes, as a raw material in the manufacture of polyester fibers and for antifreeze formulations. It is an odorless, colorless, sweet-tasting, toxic, viscous liquid. Items. Tech grade USP grade Purity 99.5% min. 99.9% min. Color 10 m...