Last week, the atmosphere of domestic maleic anhydride market was still difficult to significantly improve, and the overall negotiations still need to be strengthened. Although the buoyant market sentiment increased, the lack of demand made it difficult for the downstream recipients to pick up. At present, the atmosphere on the market is generally in the market. The installation load of maleic anhydride manufacturers around the country is not high, and the odds are in the range of 9400 to...
On January 15, a cadmium pollution incident occurred in the Longjiang River in Guangxi, and the Liuzhou Municipal Party Committee and the Municipal Government issued a call to “open up the battle to defend the Liujiang River”. Guangxi urgently withdrew large quantities of polyaluminium chloride and other water purifying agent products from local Liuzhou, Henan Gongyi, Hunan Shaoyang, Guangdong, etc. to dilute, treat, and intercept polluted river water. At the same time, the reserve water source...
Last week, the prices of potassium chloride in domestic ports and border trade remained stable, and actual transactions continued to decline. At present, the mainstream trade of Russian white crystal quotations 1900-1950 yuan / ton, it is learned that traders can inquire about the price of 1900 yuan / ton following; Port last week, a small amount of Russian red sales offer 2050 yuan / ton, the actual turnover is slightly lower. Russia's white powder offer 2100-2130 yuan / ton, the actual...
In the Mayan prophecy, in 2012, the human race suffered a devastating blow. Before 2012, the state introduced the "2012 tariff implementation plan", many manufacturers believe that the "2012" of the ammonium chloride market is coming, and the 2012 ammonium chloride market will continue to slump. First of all, look at the tariff policy. On December 16, 2011, the 2012 Tariff Implementation Plan was reviewed and approved by the State Council's Customs Tariff Commission at its 8th plenary meeting,...
English name: TRIS acetate salt; Tris (hydroxymethyl) aminomethane acetate salt; Trizma acetate Other names: trishydroxymethylaminomethane acetate; TRIS acetate; tris (hydroxymethyl) aminomethane acetate CAS number: 6850-28-8 C4H11NO3 · C2H4O2 = 181.19 Level: BR Content: ≥99.0% PH (1% water solution): 6.1 ～ 6.7 Melting point: 116 ～ 123 ℃ Heavy metals: ≤5ppm Absorbance (280nm, 1% aqueous solution): ≤0.05 Loss on drying: ≤1.0% Properties: white crystalline powder, soluble in organic solvents such...
Maleic anhydride is mainly used in raw material unsaturated polyester resin (UPR) of FRP industry; 1,4-butanediol (BDO), tetrahydrofuran (THF) and γ-butyrolactone (GBL) in hydrogenated products; Used in coatings, lubricant additives, pesticides, tartaric acid, succinic acid and anhydride, tetrahydrophthalic anhydride, modified rosin and so on. Unsaturated Polyester Resin (UPR): It is one of the main varieties of thermosetting resins. Because of its excellent mechanical properties, electrical...
Today understand that the port potassium chloride continued to low consolidation, downstream transactions were light, traders are not optimistic about the market outlook; and domestic potassium shipped smoothly, and more downstream factories Fed, offer more stable. According to traders' reactions, the recent port and border trade prices can be negotiated with relatively large space, so domestic potassium is not currently dominant, and the market price needs to be adjusted. At present, Russian...
Recently, the price of ammonium chloride has been consolidating at a high level. Wet ammonium factory prices are mostly in the 850 ~ 980 yuan (ton price, the same below), dry ammonium in the 900 ~ 1050 yuan, industrial ammonium chloride in the 1200 ~ 1500 yuan; market wholesale price, wet ammonium in the 900 ~ 1050 yuan, dry Ammonium is between 1000 and 1150 yuan. Both have created high prices this year. As a whole, the current market for ammonium chloride is under pressure and there are...
On 13 November, an explosion accident occurred in a new installation of aniline with an annual output of 70,000 tons in Jilin Chemical Industry. It stopped the pace of downhill aniline all the way in the past six months. After a relatively quiet period of two or three days, there was a wave of market rally. Last week, many manufacturers' mainstream quotes rebounded from the previous explosion of 10,000 yuan (t price, the same below) to 11,000 yuan, and individual manufacturers even reported...
Cas No. 106-31-0 Molecular formula C8H14O3; (CH3CH2CH2CO) 2O Molecular weight 158.19 Butyric anhydride Colorless transparent flammable liquid, low toxicity. Soluble in water and decompose to form butyric acid, soluble in ether. Melting point: -75 ℃ Boiling point: 199.4-201.4 ℃ Density: 0.9668 Refractive index: 1.412-1.414 Flash point: 82 ℃ Appearance colorless transparent liquid purity purity> 98% (GC) Appearance Appearance colorless transparent liquid infrared spectrum identification...
Methyl 1-naphthylacetate 1. Chinese common name: methyl naphthaleneacetate; methyl α-naphthylacetate 2. English common name: Methyl 1-naphthylacetate 3. Chemical name: α-naphthyl acetate 4. Product Name: Methylnaphthaleneacetate 5. Chemical structure 6. Physical and chemical properties Colorless oily liquid, boiling point 122~122.5 °C, insoluble in water, soluble in organic solvents, stable at room temperature. 7. Toxicity: low toxicity 8. Category: Plant Growth Promoters 9. Applied crops:...
Maleic anhydride is mainly used in raw material unsaturated polyester resin (UPR) of FRP industry; 1,4-butanediol (BDO), tetrahydrofuran (THF) and γ-butyrolactone (GBL) in hydrogenated products; Used in coatings, lubricant additives, pesticides, tartaric acid, succinic acid and anhydride, tetrahydrophthalic anhydride, modified rosin and so on. Unsaturated Polyester Resin (UPR): It is one of the main varieties of thermosetting resins. Because of its excellent mechanical properties, electrical...
Using FID detector, 6201 coated with sorbitol chromatography packed column, you can perform quantitative analysis on samples containing benzene and nitrobenzene in wastewater. If the detector of the instrument is changed to ECD (electron capture), the detection limit will be lower and the concentration will be lower. The method of extraction and enrichment can also be used to detect lower limit analysis. When the sample concentration is high, the TCD detector is used, so that a chromatographic...
What is toluene insoluble matter? What hydrocarbons are it? Toluene insoluble ash, coal powder, graphite, and the like. Toluene insolubles are macromolecular substances in coal tar, including dust and ash and furnace wall wear shedding, but they account for a small proportion in toluene insolubles. Coke oven operation has a great influence on its content, mainly temperature, coke oven height and coal charging mode. Coal tar post-processing temperature is the main factor affecting the increase...
Partial least squares method is a multivariate statistical method. For spectral analysis of multi-component mixed systems, it can make full use of the absorbance and concentration information in calibration samples, and can also perform quantitative measurement when there is matrix interference [10-11]. Therefore, partial least squares was used to simultaneously quantify the content of many different types of plasticizers in PVC plastic samples. First, determine the infrared spectra of each...
Today is the 19th National High Blood Pressure Day. According to the latest data from the Jiangsu Provincial Center for Disease Control and Prevention, one out of every three male adults in Jiangsu is hypertensive; among urban residents, there is one hypertension per three adults. The reporter learned that behind the huge crowd of people with hypertension is the "heavy taste" of the diet. The amount of salt eaten by the people in Jiangsu has exceeded the amount recommended by the state by...
Last week, the atmosphere of the domestic maleic anhydride market was relatively light, and the terminal's pressure was not reduced. Manufacturers suspended quotation for many times, a single discussion, taking goods to long-term appointments, new ones talked about lack of. Crude oil prices continued to fluctuate, and the downward pressure on ** remained. This did not significantly improve the downturn in the maleic anhydride market. However, the intention of asking for goods in some areas has...
Name: 6-Hydroxy-5-[(2-methoxy-5-methyl-4-sulfobenzyl)azo]2-naphthalenesulfonic acid disodium salt, temptation red ACCAS number: 25956-17-6C18H14N2Na2O8S2= 496.42 grade: AR content: ≥ 85.0% λmax: 497 ~ 501nm (0.02 mol / L ammonium acetate solution) drying reduction, total amount of chloride and sulfate: ≤ 0.2% insoluble in water: ≤ 0.2% arsenic: ≤ 0.0001% Lead: ≤ 0.001% low sulfonated secondary dye: ≤ 1.0% heavy metal (in Pb): ≤ 0.002% trait: orange or red to purple red powder. Uses: biochemical...
It is predicted that by 2009, the total domestic demand for maleic anhydride will be less than 340,000 tons, and by the end of 2006, the total production capacity of maleic anhydride will reach 600,000 tons, and the total annual production of maleic anhydride will reach or approach 400,000. Ton. However, under this market situation where supply exceeds demand, the expansion of maleic anhydride continues. Why is it difficult to brake maleic anhydride? The author analyzes the following reasons:...
English name: Glycine methyl ester HC1; H-Gly-OMe·HClCAS number: 5680-79-5C3H7NO2? HC1=125.56 [Glycine methyl ester salt technology application] Grade: BR content: ≥98.0% Melting point: 168～172.0°C Impurity: ≤0.3% glycinate: ≤1.5% [Glycine methyl ester salt technology application] traits: white needle crystal or crystalline powder. Soluble in water, slightly soluble in ethanol Use: Biochemical research. Preservation of pharmaceutical intermediates: RT
Shanghai Hengdailao Trading Co., Ltd. is mainly engaged in the research and development and sales of laboratory equipment, immunology, molecular biology and conventional biochemical reagents. And agent sales of many well-known foreign brands, is committed to providing first-class scientific research reagents and perfect technical services for the vast number of universities, research institutes and enterprises. Welcome to inquire. Cas number 1912-24-9 Molecular formula C8H14ClN5 Molecular...
Petroleum product aniline point tester stirring adopts stepless speed regulation, photoelectric automatic detection, sound and light alarm. Product description: Applicable standard: GB / T262 Scope of application: Determination of aniline point input voltage of dark petroleum products: AC220V ± 10% 50Hz Heating power: 20KW Adjustable stirring motor: 6W Adjustable speed automatic photoelectric detection Dimensions: 200 × 440 × 220mm
English name: L-Cysteine methyl ester hydrochloride; Methyl cysteine hydrochloride; H-Cys-OMe · HCl Other names: L-cysteine hydrochloride methyl ester; L-cysteine methanol ester extended salt CAS number: 18598-63-5 C4H9NO2S · HC1 = 171.65 Level: BR Content: ≥99.0% Specific optical rotation: -1.5 ～ -2.5º (C = 10, Methanol) Properties: white to off-white fine powder crystals. Melting point: 142 ° C Uses: biochemical research. Storage of pharmaceutical intermediates: RT
On November 30, 2009, the state approved the release of GB15063-2009 "Compound Fertilizer (Composite Fertilizer)" national standard, increase chloride ion content indicators, and according to the provisions of low chlorine, chlorine, high chlorine were: not labeled "chlorine "Products, chloride ion mass fraction should be ≤ 3.0%; identification of "chlorine (low chlorine)" products, chloride ion mass fraction should be ≤ 15.0%; identification "chlorine (chlorine)" products, chloride ion The...
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