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Propylene glycol is an approved food additive for dog and sugar glider food under the category of animal feed and is generally recognized as safe for dogs, [66] with an LD 50 of 9 mL/kg. The LD 50 is higher for most laboratory animals (20 mL/kg). [ 67 ]
Propylene glycol. Propylene glycol is considerably less toxic than ethylene glycol and may be labeled as "non-toxic antifreeze". It is used as antifreeze where ethylene glycol would be inappropriate, such as in food-processing systems or in water pipes in homes where incidental ingestion may be possible.
Propylene glycol, a food-grade antifreeze, is typically used when consumable products are involved. Before using glycol in the brewing process, check that propylene glycol is of USP grade to ensure it is recommended for food use.
$5.99 at Amazon. Additional Tips For Smart Food Storage. Food should always be frozen at the peak of its ripeness/freshness. Some types of food do not freeze well, including raw eggs in their ...
Conventional cryoprotectants are glycols (alcohols containing at least two hydroxyl groups), such as ethylene glycol [citation needed], propylene glycol and glycerol. Ethylene glycol is commonly used as automobile antifreeze; while propylene glycol has been used to reduce ice formation in ice cream.
Mono-ethylene glycol: Often used in a mixture with water to lower the freezing point for use in colder climates. Propylene glycol: Preferred in food production and other industries where toxicity might be a concern. Silicone oil: Used for its stability at high temperatures and electrical insulating properties.
There is a difference in the mixing ratio, depending on whether it is ethylene glycol or propylene glycol. For ethylene glycol, the mixing ratios are typically 30/70 and 35/65, whereas the propylene glycol mixing ratios are typically 35/65 and 40/60. It is important that the mixture be frost-proof at the lowest operating temperature. [24]
Examples include adding salt into water (used in ice cream makers and for de-icing roads), alcohol in water, ethylene or propylene glycol in water (used in antifreeze in cars), adding copper to molten silver (used to make solder that flows at a lower temperature than the silver pieces being joined), or the mixing of two solids such as ...