Crystal structure of [{Ni(dippe)}2H3][BPh4](dippe = Pri2PCH2CH2PPri2) The reaction of anhydrous NiBr2 with 1,2-bis(diisopropylphosphino)ethane (dippe) in ethanol yielded the orange complex [NiBr2(dippe)]1. This compound react... MJ Tenorio,MC Puerta,P Valerga - 《Journal of ...
solubility :Miscible with alcohol, chloroform, dichloromethane, diethyl ether, acetone and acetic acid. pka :43(at 25℃) form :Liquid color :APHA: ≤10 Odor :Paint-thinner-like odor detectable at 12 ppm Relative polarity :0.111 Odor Threshold :2.7ppm explosive limit :1.4-8.0%(V) Water Solub...
3-neck round bottom flask enclosed in an N2glove box. Anhydrous hexane (2500 ml) is then added into the flask, making a silica/hexane slurry. The slurry is heated to a temperature of about 54° C. while under constant stirring, and 380 grams of a 15 wt % solution of dibutyl magnesium...
As generally understood in the art, stucco comprises predominately one or more forms of calcined gypsum, i.e. gypsum subjected to dehydration (typically by heating) to form anhydrous gypsum or hemihydrate gypsum (CaSO4.½H2O). The calcined gypsum may comprise beta calcium sulfate hemihydrate, ...
Prior to adding any slurry, the array was prewetted with a drop of dimethyl carbonate (Sigma, anhydrous), then a drop of NMP (Sigma, anhydrous) and vacuum was applied for 30 s (Figure S12). Characterization of SU-8 Photoresist by Infrared Spectroscopy SU-8 was spin-coated onto NaCl ...
the binder and chemical agent were specially contrived as follows: The loss on ignition of ordinary Portland cement was controlled to 1.5% and 3% anhydrous gypsum was then added; and the content of polyethylene glycol alkylether in a polycarboxylate-based water-reducing agent was modified to 28%...
Anhydrous samples of PAA and their self-assembling product were ground to fine power, then mixed with KBr and pressed into thin pieces for measurement. Complex sample for FTIR measurement was prepared with 27.0 g/L PTMA and 29.2 g/L PAA at θ of 0.4. Anhydrous PTMA membrane for FTIR ...
2.3. Grafting of PEG on the SPEU Film Surface Before chemical treatments, the surfaces of the SPEU film discs with ~10 mm diameter were ultrasonically cleaned in 50% ethanol for 30 min and then dried in a vacuum. First, HDI (1.0 g) and DBTDL (0.02 g) were dissolved in anhydrous ...
Method for the direct determination of water content in anhydrous butteroil at 40°C Free Fatty Acids in Milk and Cream according to Bosset/M077 Determination of free fatty acids in milk and cream after extraction. Correlation of pH Value and Content of Sulfuric Acid / M625 Method for the...
Acetonitrile (99% anhydrous), Acetone (99.8% anhydrous), Tetrahydrofuran (THF) (99.5% anhydrous), propylene carbonate (99.5% anhydrous), dioxane (99.8% anhydrous), ethyl acetate (99.9% anhydrous), dichloromethane (99.9% anhydrous), DMF (99.5% anhydrous), DMSO (99.9% anhydrous), 2-butanone (...