Crystal sensitivity

PROP Brownish-red or purplish hexagonal crystals sensitive to atmosphere, slowly decomp on contact with moisture. D 1.3, mp 813°. Reacts with H2O with formation of LiOH and evolution of NH3. CONSENSUS REPORTS Reported in EPA TSCA Inventory. 

Properties White, rhombic crystals. Sensitive to light. D 6.11, mp 235C, bp322C. Soluble in alcohol and ether sparingly soluble in water. 

Properties Crystals, sensitive to light. Mp 97-100C. Insoluble in water soluble in ethanol and acetone. 

White to light buff crystals sensitive to light, mp 125- 26 with decompn. Soluble in water, methanol insol in ether. The aq soln is unstable. use Reagent for iron and copper. See also Cupferron. 

Crystals. Sensitive to light, mp 94-100°. bp 5 214-218 bp[ 278-281. Practically insol in water. Soly (mg/ml) ethanol 153 acetone 82. Practically insol in sesame oil. 

White crystals sensitive to light. Poisonous Sot in water acids ppt silver cyanide from the soln. Protect from light. 

Methanesulfonate, C pH NO S. Nilomon. Bitter crystals, sensitive to light, mp 126-130 . Sparingly sol in water, sol in alcohol. Practically insol in ether. 

Blue-green pyrophoric crystals. Sensitive to air. Shauid be stored under nitrogen. Dec 60-70° in a nitrogen-filled tube. 

In the preceding section, the structural evolution process was described at the molecular level as well as the lamellar level. In the experiment about the structural evolution in the crystallization process, we noticed the difference in crystallization rate between various kinds of PE samples. Figure 5.16 shows the increase in the crystallization sensitive infrared band intensity estimated for DHDPE, HDPE,... 

Black, diamagnetic crystals, sensitive to air. M.p. 284-285 °C. Slightly soluble in ether and petroleum ether, giving a brown color moderately soluble in benzene. 

Acetyl hexachloroantimonate, CH3CO SbCle. Mol. wt. 374.51, colorless crystals sensitive to moisture. The salt is prepared from acetyl chloride and antimony(V) chloride. 

Detailed analysis of the three crystallization-sensitive regions is presented below. 

Infrared spectra of semicrystalline polymers include crystallization-sensitive bands. The intensities of these bands vary with the degree of crystallinity and have been used as a measure of the crystallinity. 

Interestingly, the here demonstrated influence of the nature of the absorption sites on the photochemical degradation of sensitizers has already been recognized in an early study, 35 years ago, on ZnO single crystals sensitized with chlorophyll [5]. From the degradation curve of chlorophyll sensitized electrodes, it was deduced that sensitizer molecules with widely different stabilities were active on the oxide surface. 

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