甘油（丙三醇）在正常情況下是一種無色、無臭、味甜，外觀呈澄明黏稠液態的有機物。然而在下列情況下，甘油的氣味、色澤以及口感會發生變化，下面小編帶您一起了解下：

Glycerin (glycerol) is a colorless, odorless, sweet organic substance with a clear, viscous liquid appearance under normal conditions. However, under the following circumstances, the smell, color and taste of glycerol will change. Here is a brief introduction to let you know:

只要使用高質量高的原料，恰當儲存粗甘油，避免長時間高溫，大部分氣味和色澤問題都可可以避免。粗甘油中的雜質，尤其是非甘油有機物（MONG)，會影響蒸餾甘油的質量和產量。如果非甘油有機物含量很高（3%-5%)，成品會存在氣味、口感和回色問題。非甘油有機物中存在的三亞甲基乙二醇會影響甘油的色澤，同時引起儲存中的問題。

Most odor and color problems can be avoided as long as high-quality raw materials are used, crude glycerol is properly stored, and long-term high temperature is avoided. Impurities in crude glycerol, especially non-glycerol organics (MONG), will affect the quality and output of distilled glycerol. If the content of non-glycerol organic matter is very high (3% - 5%), the finished product will have odor, taste and color problems. The presence of trimethylene glycol in non-glycerol organic matter will affect the color of glycerol and cause problems in storage.

沸點接近的雜質和大部分氣味物質可以用一個脫臭塔或脫氣裝置除去，該設備安裝在蒸餾柱之后，在高真空下用直接蒸汽（或：“噴射”蒸汽）進行操作。剩余的色素物質通過活性炭吸附除去。

Impurities with close boiling points and most odor substances can be removed by a deodorizer or degassing device, which is installed after the distillation column and operated with direct steam (or "jet" steam) under high vacuum. The remaining pigment substances are removed by adsorption of activated carbon.

在有鐵離子、鐵鹽。酸或中性鹽存在時，會產生丙烯醛。丙烯醛的氣味和特別，很低含量時人的鼻子就可以嗅出。

There are iron ions and iron salts. In the presence of acid or neutral salt, acrolein will be produced. The smell of acrolein is very special. People can smell it when the content is very low.

殘留在各種加工設備（尤其是在炭吸附柱）中的甘油會編制，并生產很難去除的氣味物質。因此，工藝設備在停工后須清洗，炭吸附柱要用空氣吹干并水洗。新鮮的活性炭有時也含有產生氣味的雜質。這些炭可以用蒸餾的甘油洗滌，這些甘油可以通過重整理回收或作為低檔產品銷售。

The glycerol remaining in various processing equipment (especially in carbon adsorption column) will be prepared and produce odor substances that are difficult to remove. Therefore, the process equipment shall be cleaned after shutdown, and the carbon adsorption column shall be dried with air and washed with water. Fresh activated carbon sometimes contains impurities that produce odor. These carbons can be washed with distilled glycerin, which can be recycled through rearrangement or sold as low-grade products.

此外甘油對皮膚沒有害，甘油的作用是吸水保濕，不論從成分還是功效上都不會對皮膚造成傷害，即使長期使用也不會發生副作用。只是要注意甘油的使用方法和注意事項，如果沒有使用得當，可能會讓皮膚變干。只要合理的運用，可以放心的使用！您可以來我們網站http://www.yiqijieneng.cn咨詢更多相關事項！

In addition, glycerin is harmless to the skin. Its function is to absorb water and moisturize. It will not cause damage to the skin in terms of composition or efficacy, and will not have side effects even if it is used for a long time. Just pay attention to the use method and precautions of glycerin. If it is not used properly, it may dry the skin. As long as it is used reasonably, it can be used safely! You can come to our website http://www.yiqijieneng.cn Consult more related matters!