Acetic acid (AcOH) is corrosive and has a stimulating effect on eyes, respiratory tract, esophagus and stomach. It can cause vomiting, diarrhea, paralysis of the circulatory system, and even acidosis, uremia and hematuria, eventually leading to death.

Acetic acid, commonly known as acetic acid (AcOH) because it is the main component of vinegar, is one of the most important fatty acids. In nature, it occurs in many plants as free or esters. Molecular formula CH3COOH.

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.

TDI (toluene diisocyanate) is one of the commonly used polyisocyanate, and polyisocyanate is an important base material of polyurethane (PU). The TDI commonly used in the polyurethane industry is a mixture of 2,4-TDI and 2,6-TDI isomers, including three commonly used grades.

Toluene diisocyanate is combustible in case of open flame and high heat. It can react with oxidants. Reacts violently with amines, alcohols, alkalis and warm water, and can cause combustion or explosion.

Sodium persulfate is a white odorless crystal or powder, additionally referred to as sodium persulfate. sodium persulfate has precise stability at room temperature and can gradually decompose.

When the PH cost of the ammonia water is small, the supersaturation of the reaction is small, so the obtained magnesium hydroxide has a large particle length and a quick sedimentation speed; whilst the PH price of the ammonia water is tremendously large, the response supersaturation is enormously large, and the sedimentation time of the magnesium hydroxide lengthy.

Good safety factor. Piping reflects that it can prevent the occurrence of explosion caused by partial over-temperature, and it is the safest and most reliable process route for ethylene oxide.

The principle of potassium hydroxide removal of oil stains is actually a simple chemical principle. Since oil stains are a lipid chemical substance, from the analysis of its chemical composition, they are higher fatty acids and glycerides.

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.

A kind of hydroperoxide decomposer that destroys the structure of peroxygen, called auxiliary antioxidant, mainly contains thioester and phosphorous acid, and is often used together with the main antioxidant.

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