Special stearic acid for plastic lubricants

含量：

99

外观：

白色

包装：

25公斤

It seems that there is still an unanswered question, what is the difference between primary acid and tertiary acid? The difference between them is superficially color and smell, and then the nature is iodine value and other insoluble matter, etc., because their properties determine their application. The fields and prices are different.
I don’t know if there is a systematic definition of these levels. Some customers told me that they want food-grade or pharmaceutical-grade stearic acid. So I want to know how to distinguish these stearic acids in food, medicine, rubber and so on. The sample you mentioned can certainly be used to determine whether it is applicable. However, various models currently on the market should have relatively fixed index parameters. It should be clear which models of mainstream products are suitable for which industries
I know that stearic acid is used in the food industry and is used in Span There are some other places where it is possible, but I currently don’t have similar customers in the pharmaceutical industry. Also, stearic acid does not have a food addition license or food license, so there is no need for a drug certificate.
There are still many mainstream models. Generally, the ones imported from abroad are the best and can be used in almost all fields where stearic acid can be used. But if you ask them to provide proof of relevant food and medicine, it will be more difficult. I keep emphasizing this issue. Recently, the country has indeed been stricter on food and medicine. If you be cautious, there will definitely be no problem in using it. , but please note
It means that the country does not have relevant standards, and what is available now is just a term that has been agreed upon in the industry. Does this mean?
There is no national standard for stearic acid, only an international standard for grade stearic acid. The national standards are all R, which are related to designated products. There are no standards for indicators, especially for tertiary acid. . . As long as it can be used
By the way, for those who don’t know this, does R have an indicator for detecting stearic acid? Because recently I am also looking for a third-party testing agency that can provide stearic acid testing. Yes, I know
How do you feel that I answered this question? Please download R, it is very clear in it. We know very little about these very professional things. We don’t dare to say nonsense. We should know it clearly and clearly
After searching R, the full name is "About Limiting on "Directive on the use of certain harmful ingredients in electronic and electrical equipment", so I question the relationship between this and stearic acid
Electronic equipment is all plastic, and one of the biggest uses of stearic acid is the plastic industry, whether it is stearic acid itself It is used as a release agent or lubricant, or as a downstream hard salt as a heat stabilizer. R is the test report on environmental heavy metals and other harmful organic substances. Since you are used in this industry, of course you must pass the test. ~~~~~~