Chemical reagents Some people say that he is the eyes of the chemical experimenter, yes, because of these chemical reagents, we can better understand the chemical reaction and the results of chemical experiments. So how are these chemicals classified? What should we learn from this? Please follow Shanghai Boer reagent to have a look!

1, equivalent reagent (3N, 4N, 5N) : the principal component content is 99.9%, 99.99%, 99.999% or more. In addition, it is still divided into the following 20 levels. Such as: AAS atomic absorption spectrometry, BC biochemical reagent, BP British Pharmacopoeia, BR biological reagent, BS biological stain.

Second, biochemical reagent SH: preparation of biochemical test and biochemical synthesis.

Electronic reagent DZ: generally refers to the chemicals and materials used in the electronic information industry, mainly including chemicals for integrated circuits and discrete devices, chemicals for printed circuit boards, chemicals for surface assembly and chemicals for display devices.

4. Experimental reagent SY: "reagent for synthesis" determined according to "main content". A common reagent used to synthesize, separate and purify in a chemical laboratory that can meet the requirements of the synthesis process.

Electronic pure (MOS) : suitable for the production of electronic products, the content of electrical impurities is very low.

6. Chemical purity (CP, blue label) : high principal component content, high purity, interference impurities, suitable for chemical experiments and synthetic preparation.

7, experimental pure (LR, yellow label) : the main component content is high, the purity is poor, the impurity content is not selected, and it is only suitable for general chemical experiments and synthetic preparation.

Excellent grade pure (GR, green label) : the principal component content is very high, the purity is very high, suitable for accurate analysis and research work, and some can be used as the reference material.

9. Designated grade (ZD) : chemical reagents customized for specific users according to the quality control indicators required by users.

10, indicators and dyes (ID or SR, purple label) : requires a unique sensitivity.

11. Analytical purity (AR, red label) : high principal component content, high purity, low interference impurities, suitable for industrial analysis and chemical experiments.

According to the classification of these chemical reagents, we can clearly find or clearly understand what type of chemical reagents we use when doing chemical experiments. Don't confuse them, because many chemical experiments can be dangerous.