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Antioxidant is a kind of plastic additives that can effectively reduce the self-oxidation reaction rate of plastics and promote the degradation of plastics.

Suitable for tiles, marbles, plastic finishes, adhesives, etc., which can reduce the amount of cement. The water retention of HPMC prevents rapid cracking of the slurry after coating and strengthens the strength of the slurry after hardening.

The solid defoamer is generally added in the form of spraying, and the viscosity of the coating is relatively large. In this case, if the solid defoamer particles are relatively fine, it is very likely that the particles cannot be effectively dissolved, which will eventually cause a large amount of The precipitation material.

Hydrogen peroxide is used for oxygen bleaching or one-bath production and processing of annealing, boiling and bleaching. Hydrogen peroxide is often added to the water. Hydrogen peroxide is relatively stable in weakly alkaline or neutral conditions, and in weakly alkaline conditions. The addition of hydrogen peroxide has strong oxidizing properties, and the presence of heavy metal ions leads to early catalytic decomposition of hydrogen peroxide, which not only causes damage to hydrogen peroxide, but also damages fibers.

Special combination instruments, such as Kjeldahl trace nitrogen analyzer, K-D evaporation concentrator, rotary evaporation concentrator, etc., should be cleaned and protected.

Ammonia is an aqueous solution of ammonia. It is colorless, transparent and has a pungent smell. So what are the properties of ammonia?

Store in a cool and ventilated warehouse. Avoid burning and heating. Separate oxidizer boxes to avoid mixed storage.

Meta-xylene is an organic compound with a molecular formula of C8H10 and a molecular weight of 106. It is a colorless and transparent liquid with an odor similar to toluene. It is insoluble in water, but miscible in most organic solvents such as ethanol, ether and chloroform. Used as solvent, medicine, dye intermediate, perfume, etc.

Diatom mud is a natural and environmentally friendly interior wall decoration material, which is used to replace wallpaper and latex paint, and plays the role of interior wall decoration and indoor air purification. Powder packaging, not liquid barrels. The main raw material of diatom mud is the diatom mineral diatomite formed after hundreds of millions of years. Diatom is a kind of algae living in oceans and lakes. Diatom mud is made of natural substances deposited by diatoms, aquatic plankton living in millions of years ago.

Firefighters must wear gas masks and full-body fire fighting clothes, and put out the fire in the upwind direction. Spray water to keep the fire container cool until the end of the fire extinguishing.