Di-tert-butyl peroxideInvolved in many fields such as polymer synthesis, biochemical synthesis and metabolism, environmental pollution, food chemistry and cosmetics industry. The iodometric method commonly used for the analysis of di-tert-butyl peroxide is time-consuming and reagent-consuming. Recently, it has been reported that the gas chromatography internal standard method is used to determine peroxides, but the internal standard method is only suitable for the analysis of peroxides that are stable and easy to vaporize at low temperatures. The peak area of the thermal decomposition product of peroxide has a linear relationship with the concentration of peroxide, but there are few specific studies in this area. Taking the relatively inactive di-tert-butyl peroxide (DTBP) as the research object, the composition of pyrolysis products was investigated, and the peak area of the main thermal decomposition product acetone and the amount of di-tert-butyl peroxide were found. Linear relationship. This relationship can be used to determine…
The production process of DTBP (initiator A) is carried out intermittently. The quality of wastewater, the concentration of organic matter, pH, salt content, BOD/CDO value, etc. vary with the production scale and time, and the peak and valley values vary greatly. DTBP is thermally unstable and easily decomposes quickly, causing an explosion. DTBP dissolved in wastewater will also rapidly decompose at high temperatures, which also brings safety hazards. In the production process, a large amount of waste acid liquid will be produced, and a large amount of alkaline washing waste liquid will be produced in the product purification process. The concentration of pollutants in the wastewater is high, the composition is complex, and the B/C value is very low, and biochemical treatment cannot be carried out. Direct discharge of this kind of waste water into rivers will seriously pollute the water body. Properties of di-tert-butyl peroxide丨Shandong di-tert-butyl peroxide manufacturer
Thermal decomposition products of di-tert-butyl peroxide丨Shandong di-tert-butyl peroxide manufacturer
Organic peroxides cover many fields, such as polymer synthesis, biochemical synthesis and metabolism, environmental pollution, food chemistry and cosmetics industry. The iodine measurement method commonly used to analyze peroxides is time-consuming and requires a lot of reagents. The gas chromatography internal standard method is used to determine peroxides, but the internal standard method is only suitable for peroxides that are stable and easy to evaporate at low temperatures. The peak area of peroxide pyrolysis products has a linear relationship with peroxide concentration, but there are few specific studies in this field. The relatively inactive di-tert-butyl peroxide (DTBP) was used as a research object to study the composition of pyrolysis products, and the peak area of acetone and the amount of di-tert-butyl peroxide were confirmed. Linear relationship. This relationship is used to determine the peroxide content at the same evaporation temperature. Compared with the internal standard method, the results are satisfactory….
The relationship between the decomposition temperature of di-tert-butyl peroxide and the amount of decomposition丨Shandong di-tert-butyl peroxide manufacturer
The relationship between the decomposition temperature of di-tert-butyl peroxide and the amount of decomposition was investigated by gas chromatography, and the composition of the decomposition products of di-tert-butyl peroxide was studied. The experiment found that there is a linear relationship between the peak area of the main thermal decomposition product and the amount of di-tert-butyl peroxide in the range of 22.91～114.93μg. The determination of peroxide samples of unknown concentration has good precision.
Di-tert-butyl peroxide is a high-temperature active peroxide丨Shandong di-tert-butyl peroxide manufacturer
Di-tert-butyl peroxide is used as a fuel additive to test the starting performance of a compression ignition natural gas (LPG) engine with extremely low cetane number. The results show that di-tert-butyl peroxide can make the cetane number reach 60, thus realizing the engine start at room temperature. Analyze the volatility index and combustion characteristic index of biodiesel, analyze the influence of different additions of di-tert-butyl peroxide on the volatility and combustion characteristics of biodiesel, and provide a theoretical basis for improving the combustion process and emissions of biodiesel. The volatilization of liquid substances is mainly because liquid substances absorb heat, overcome intermolecular forces, and form gaseous substances. Di-tert-butyl peroxide is a high-temperature active peroxide, which is relatively stable to heat. At a temperature of 290°C, a decomposition reaction is initiated and volatile substances are generated, resulting in an increase in weight loss rate.
Di-tert-butyl peroxide waste disposal method: Due to the high risk of contamination, it is recommended not to recycle. Dispose of waste in accordance with laws and regulations (mostly controlled incineration). Follow local regulations. Empty containers may contain product residue, so please follow all warnings after the container is emptied. Do not damage the container until the product residue is emptied. Waste treatment method of di-tert-butyl peroxide丨Shandong di-tert-butyl peroxide manufacturer
The transportation of tert-butyl hydrogen peroxide: the transportation vehicles should be equipped with corresponding types and quantities of fire-fighting equipment during transportation. Parallel transportation with reducing agents, strong acids, flammable or combustible substances, active metal powders and other substances is strictly prohibited. Speed should be controlled to avoid bumps and shocks. Transport in the morning and evening in summer to prevent sunlight. Road transportation should follow the prescribed routes and stop in residential areas and densely populated areas. Before and after loading and unloading, the transport vehicle should be thoroughly cleaned, and it is strictly forbidden to mix organic matter, combustible matter and other impurities. Transportation of tert-butyl hydroperoxide丨Shandong tert-butyl hydroperoxide manufacturer
Sodium ethoxide ethanol solution specific target organ system toxicity-single exposure丨Shandong sodium ethoxide ethanol solution manufacturer
Sodium ethoxide ethanol solution specific target organ system toxicity-single exposure: ethanol: human oral ethanol has an effect on the central nervous system, which can cause headache, fatigue, low concentration, and death due to acute poisoning. people
Sodium methoxide methanol solution specific target organ system toxicity丨Shandong sodium methoxide methanol solution manufacturer
Sodium methoxide methanol solution Specific target organ system toxicity-single exposure: methanol: to visual organs, central Nervous system and other target organs are harmful. Sodium methoxide: has an anesthetic effect on the central nervous system. Specific target organ system toxicity-repeated exposure: Methanol: Harmful to target organs such as visual organs and central nervous system. Sodium methoxide methanol solution specific target organ toxicity丨Shandong sodium methoxide methanol solution manufacturer
Preparation of diethyl oxalate: azeotropic dehydration at 68-70 under heating and reflux. After the water has basically evaporated, the ethanol and benzene evaporate. After cooling, wash with water, saturated sodium bicarbonate solution, wash with water, and dry with anhydrous sodium sulfate. Atmospheric distillation, collect fractions at 182 ~ 184 to obtain 1) 57 g of diethyl oxalate (1), with a yield of 78%. Note: (1) Anhydrous oxalic acid can be prepared by the following method: the powdered oxalic acid containing crystal water is heated to reflux with carbon tetrachloride, and azeotropically dehydrated to anhydrous evaporation. Filter, dry and store in a desiccator for later use. It can also be dried directly in an oven to prepare anhydrous oxalic acid. The corresponding amount of oxalic acid containing crystal water can also be used in this experiment, but the reaction time is longer. Preparation of diethyl oxalate丨Shandong diethyl oxalate manufacturer