Zinc Borate is an environmentally friendly non -halogen flame retardant. It has the characteristics of non -toxic, low -water solubility, high heat stability, small particle size, small gravity, and good decentralization. As a high -efficiency flame retardant Rubber, coatings and other fields.

Molecular weight: 65.39 Grade: 5N MDL number: MFCD00011291 EC number: 231-175-3

Appearance and properties: white or almost white fibrous or granular powder Density: 1.39 g/cm3 Solubility: almost insoluble in absolute ethanol, ether, acetone; swelling in cold water into a clear or slightly dirty colloidal solution Stability: The solid is flammable and incompatible with strong oxidants.

HCFC-141b (monofluorodichloroethane) is a high-purity liquid widely used in cleaning and solvent fields.

Ammonia, also known as Amonia water, can be written as NH3(aq), which is an aqueous solution of ammonia, colorless, transparent and has a pungent odor.

A substance that can reduce the surface tension of water, solution, suspension, etc., prevent the formation of foam, or reduce or eliminate the original foam. [1]

From the perspective of physics, the methods to eliminate foam mainly include placing baffles or filters, mechanical stirring, static electricity, freezing, heating, steam, radiation, high-speed centrifugation, pressure and decompression, high-frequency vibration, instantaneous discharge and ultrasonic (acoustic) Liquid control), etc., these methods promote the gas permeation rate at both ends of the liquid film and the drainage of the bubble film to varying degrees, so that the stability factor of the foam is smaller than the attenuation factor, and the number of foams is gradually reduced.

Aspirational antioxidants should have the following conditions: ①Should have high anti-oxidation ability; ②Good compatibility with resin, no precipitation; ③Good processing function, non-volatile and non-decomposing at the processing temperature of high polymer; ④Good resistance to extraction, insoluble in water and oil; ⑤The color of itself is best to be colorless or light-colored, so as not to pollute the product; ⑥Non-toxic or low-toxic; ⑦Low price. In fact, any kind of antioxidant can not fully meet these conditions.

The octane is the most important quality indicator of the vehicle gasoline.

The solubility in water was 549 g / L at 20 ° C. Relative density 2.400 (deposit density: 0.7).

Methacrylic acid is colorless crystal or transparent liquid with pungent odor. Soluble in hot water, soluble in most organic solvents such as ethanol and ether. Easily polymerized into water-soluble polymers. Combustible, there is a danger of burning in case of high heat and open flame, and it can produce toxic gas when heated.

Tributyl acetyl citrate is CAS 77-90-7 chemical substances.

Sodium peroxide is an inorganic substance with a chemical formula of Na2O2 and a molecular weight of 77.98. Beige powder or granules. The relative density is 2.8.

Sodium Persulfate is also called sodium sulfate, is an inorganic substance, a chemical formula is Na2S2O8, and the appearance is a white crystal powder, odorless.

When the temperature drops to 2.18K, the properties of liquid helium will change suddenly, the viscosity is very small, and it becomes a super fluid that can flow upwards along the wall of the container. The thermal conductivity is 800 times that of copper. It becomes a thermal conductor with excellent thermal conductivity. Its specific heat capacity, surface tension, and compressibility are all abnormal. This abnormal liquid is called liquid helium II, and the normal liquid helium is called liquid helium I.

1.4, 4 '- methylene bis (2-chlorocene) The molecular weight is 267.15, the molecular formula is C13H12N2 CL2

Hydrogen Peroxide Solution is an aqueous solution of hydrogen peroxide.

Light yellow to white granular crystals (semi-circular) white to light yellow loose crystals, heating is made black.