Global prices for bulk chemicals such as polyurethanes
In terms of polyurethanes, new domestic aniline production capacity has been gradually put into use, and prices have been relatively weak; domestic pure MDI and polymerized MDI markets are dull; TDI prices have dropped slightly.
In petrochemicals, at the beginning of the week, crude oil prices on the New York Mercantile Exchange crossed the $90 mark per barrel and hit a two-year high. NYMEX's January WTI crude oil contract settled at $90.76 per barrel, which was October 2008. The highest level since. However, due to data released by the US government on Wednesday, the level of US fuel inventories rose more than expected last week, and the price of crude oil in the New York Mercantile Exchange fell. The prices of ethylene and propylene in the downstream major petrochemical products were kept within range.
In the case of chlor-alkali chemicals, under the circumstances that the downstream demand has not changed much, the inventory of domestic soda ash companies has increased significantly, prices have continued to fall, and the prices of PVC and caustic soda products have also dropped by a certain extent.
In terms of organic materials, methanol prices fluctuated this week.
In terms of chemical fiber, polyester staple fiber prices continued to decline slightly this week due to the continuous decline in prices of cotton and PTA.
Ammonia nitrogen refers to the compound nitrogen that exists in the form of ammonia or ammonium ions, that is, the nitrogen that exists in the form of free ammonia (NH3) and ammonium ions (NH4+) in water. The compound nitrogen in the form of free ammonia (NH3) and ammonium ion (NH4+) is called ammonia nitrogen. Ammonia nitrogen is a nutrient in water, which can lead to water eutrophication. It is the main oxygen-consuming pollutant in water and is poisonous to fish and some aquatic organisms. The ammonia nitrogen analyzer includes an Ammonia Controller and an Ammonia Sensor, and adopts the ion selection method. The ammonia analyzer has a wide measurement range, rapid response, and integrates display, control and output. The ammonia nitrogen controller has 2 relays, two 4-20mA current outputs and RS485 communication; the ammonia nitrogen sensor itself also has RS485 communication, which can be automatically cleaned underwater. The measuring range of the NH3 ammonia analyzer is 0~1000mg/L. Ammonia meters are widely used in surface water monitoring, industrial wastewater and municipal sewage monitoring, water treatment industry, boiler return water monitoring, deionization process monitoring, reverse osmosis monitoring, and aquaculture water monitoring.
Ammonia Analyzer,Water Ammonia Meter,Nh3 Ammonia Analyzer,Nh4 Ammonia Sensor
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