Appearance and traits: white crystals, extremely salty, non -toxic. It is easy to solverate in water, ether, glycerin and alkali, slightly soluble in ethanol, but insoluble in water -free ethanol, which is hygroscopic and easy to lump; New potassium salt is generated by reciprocating and disintegrating.

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

Lactic acid is a carboxylic acid, the molecular formula is C3H6O3, containing a hydroxyl group, belonging to α-hydroxyory (AHA). In an aqueous solution, the carboxyl group releases a proton to generate lactate ion CH3CH (OH) COO-.

citric acid is without problems soluble in water and ethanol, its solubility is 59% at 20℃, and the ph of its 2% aqueous solution is 2.1.

Generally speaking, when the energy of the arrangement cannot be satisfied with oxygen breathing, it is arranged that the oxygen that cannot be obtained may not satisfy the quick treatment of oxygen, the concentration of lactic acid will rise. In this case, the acetone dehydrogenase cannot be converted to acetyl coenzyme a, pyruvate start-up. In this case, if the lactate dehydrogenase does not reduce the reduction of pyruvic acid as lactic acid, the composition of triphosphate is inhibited.

The lactic acid transport speed is affected by a series of factors, and includes a monocarboxy-dient, lactate dehydrogenase concentration and isomer form, and the oxidative capacity arranged. Generally, the concentration of lactic acid in the blood is from 1-2 mmol / L during non-exercise, and can rise to 20 mmol / L during intense exercise.

Ricia oil contains a lot of ricic acid (more than 80%), so many unique properties: 1. It is easy to dissolve in ethanol, which is difficult to dissolve in petroleum ether. This feature is more likely to distinguish between castor oil from other grease. 2. The viscosity is much higher than that of the general oil, and 25 is 680 cps, the viscosity index 84, the friction coefficient is very low (0.1). The fluidity of castor oil is good, and the refined castor oil can still flow in -22. 3.

Chemical nature: Forbidden qualitative: strong oxidizing agent, strong reducing agent, strong acid, strong base. Ecological nature: Ecotoxicity EC50: 1.2 ~ 1.51mg / L (luminous bacteria, microtox toxicity test) Biodegradability Miti-I test, initial concentration of 100 mg / L, sludge concentration 30 mg / L, 2 weeks later degraded 77%. Non-biodegradability In the air, when the hydroxyl radical concentration is 5.00 × 105 / cm3, the degradation of the half-life is 7.8d (theory). Other harmful effects The material is damaged by the environment and should pay spe

HCFC-141b (monofluorodichloroethane) is a high-purity liquid widely used in cleaning and solvent fields. Because its damage to the ozone layer is 1/10 of CFC-113, it is designated as an ideal substitute for fully halogenated chlorofluorocarbons. HCFC-141b is a widely used non-perhalogenated chlorofluorocarbon. Although its destructive effect on the ozone layer has been greatly reduced compared to fully halogenated chlorofluorocarbons, it can still cause damage to the ozone layer that is difficult to recover. As a result, its use is gradually being reduced around the world.

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.

Biphenyl is found in coal tar, crude oil and natural gas. The preparation methods of biphenyl include the chemical composition method of making biphenyl through benzene pyrolysis and the separate extraction method of making biphenyl through various coal tar fractions. The mass fraction of biphenyl in coal tar is 0.20%-0.40%, and coal tar extraction method and chemical composition method coexist.

Potassium hydroxide is a common inorganic base with a chemical formula of KOH and a molecular weight of 56.1. It is a white powder or flake solid at room temperature.

White oblique crystals, industrial products are white or light gray lumps or rods. Easily soluble in water, emits a lot of heat of dissolution when dissolved, soluble in ethanol, slightly soluble in ether. It is deliquescent and has strong water absorption. Potassium hydroxide is strongly alkaline and corrosive, and its properties are similar to sodium hydroxide, which can cause burns. It can absorb water and dissolve in the air, and absorb carbon dioxide to gradually become potassium carbonate. The pH of the 0.1 mol/L solution is 13.5.

Methyl 2-chloropropionate is an organic compound with the chemical formula C4H7ClO2, mainly used as an intermediate in pesticides, pharmaceuticals, and spices.

Dissolving function: soluble in water and some solvents, such as ethanol/water, propanol/water in appropriate proportions. The aqueous solution has surface activity. High transparency and stable function. Different standard products have different gel temperatures and solubility changes with viscosity. The lower the viscosity, the greater the solubility. Different standards of HPMC have different functions. The dissolution of HPMC in water is not affected by pH.

Appearance: watery bright liquid with pleasant ketone-like fragrance. Main uses: Used as a solvent for spray paint, nitrocellulose, some fiber ethers, camphor, grease, natural and synthetic rubber. Precautions for storage and transportation: Store in a cool and ventilated warehouse. Keep away from kindling and heat sources. The warehouse temperature should not exceed 30℃. Avoid direct sunlight. Keep the container sealed. It should be stored separately from oxidant. Lighting, ventilation and other equipment in the storage room should be explosion-proof.

Ethylene glycol ether (2-ethoxyethanol) is an organic compound with a molecular formula of C4H10O2 and a molecular weight of 90.12. It is a colorless and transparent liquid.