Hygroscopicity increased

Pure alkyl sulfuric acids are white crystalline solids with definite melting points but they are hygroscopic. Hygroscopicity increases as the chain length increases. Dodecyl, tetradecyl, hexadecyl, and octadecyl sulfuric acids were obtained by Maurer et al. [57] by chlorosulfation of the corresponding alcohols and the melting points obtained are shown in Table 2. 

Its expl and other props, given in R.efs 2,3,4 5), are as follows Ballistic Mortar Value (Power) 127%TNT Explosion Temperature ignites ca 340°, but does not expl even at 360° (same as for TNT) Friction Sensitivity- si less sensitive than RDX Heat of Combustion, Qc 769.8 kcal/mole Heat of Explosion, Qe 272.6 kcal/mole Heat of Formation, 27.8 kcal/mol Hygroscopicity- increase in wt at 100% RH 0.09% vs 0.03% for TNT not hygroscopic at 90% RH Impact Sensitivity, detd by BurMinesApp No 5- si less sensitive than PETN 75° International Heat Test loss of wt in 48 hrs 0.1% vs 0.2% for TNT Power- see Ballistic Mortar Value and Trauzl Value Stability. Thermal at 100°- no expln in 300+ mins(same as for TNT) Stability, Thermal at 2 35°- methyl violet turned salmon pink in 30 mins vs 300+ mins for TNT Temperature of Explosion 3885°K Trauzl Test Value 135% TNT ... 

Some chemical reactions of the wood components involve functional groups that do not form part of the polymer chain and may have only a slight effect on some wood properties and may enhance some. For example, esterification or etherification of free hydroxyl groups in carbohydrates or lignin may reduce hygroscopicity, increase dimensional stability, and actually increase wood strength by reducing the equilibrium moisture content. 

Moisture content hygroscopicity increases as DE increases. Maltodextrin is slightly hygroscopic at relative humidities less than 50%. At relative humidities greater than 50%, the hygroscopicity of maltodextrin increases nonlinearly. Particle size distribution Maltrin is available in various grades with different particle size distributions. 

Slightly hygroscopic Increase in mass is less than 2 percent m/m and equal to or greater than 0.2 percent m/m. 

The rate of hydrolysis of DMAC is very low, but increases somewhat in the presence of acids or bases. DMAC is a stable compound, but is mildly hygroscopic and desiccation and/or dry nitrogen blanketing of storage vessels are sometimes used to reduce water pick-up. In the absence of water, acids, or bases, DMAC is stable at temperatures up to its hoiling point at atmospheric pressure. Its greater stability enables more economical recovery by distillation relative to that of other similar solvents. 

Solid Polymer. Completely dry polyacrylamide is a brittle white soHd. Commercially available dry polyacrylamide powders are typically dried under mild conditions and usually contain 5—15% water. The powders are hygroscopic, and generally become increasingly hygroscopic as the ionic character of the polymer increases. Cationic polymers are particularly hygroscopic. 

Potassium nitrate is being used increasingly on intensive crops such as tomatoes, potatoes, tobacco, leafy vegetables, citms, and peaches. The properties that make it particularly desirable for these crops are low salt index, nitrate nitrogen, favorable N K20 ratio, negligible CU content, and alkaline residual reaction in the soil. The low hygroscopicity of KNO (Table 9) leads to its use in direct appHcation and in mixtures. It is an excellent fertilizer but the high cost of production limits its use to specialty fertilizers. 

The hygroscopic and humectant properties of com symps are of great importance in many apphcations. Depending on the type of symp and on the specific conditions of temperature and humidity, the products may either resist or facihtate moisture loss or moisture absorption. The abihty to attract moisture or retard its loss increases with increasing DE value. Prevention of moisture pickup is more characteristic of symps having low DE values. 

Lithium Hypochlorite. High purity, anhydrous lithium hypochlorite [13840-33-0] LiOCl, is a white, lightweight, dusty, hygroscopic, and corrosive powder. The monohydrate is free-flowing, nondusty, and of reasonable density. The presence of diluents such as salt, sodium, and potassium sulfates reduces dustiness, increases bulk density, reduces reactivity, and improves storage stabiUty. The commercial product is marketed in this form. 

The substitution of water-borne versions of these primers is increasing as environmental restrictions on the use of organic solvents become stricter. These are generally aqueous emulsions of epoxy novolac or phenolic based resins stabilized by surfactants [34]. Non-ionic surfactants are preferred, as they are non-hygroscopic in the dried primer films. Hygroscopic ionic surfactants could result in excessive water absorption by the primer film in service. 

The strength of a bond increases with the wood density in the region of approx. 0.7 to 0.8 g/cm Above this density, a decrease of the bond strength occurs. Performance and properties of wood-based panels are strongly influenced by the properties of the used wood. The anisotropy as well as the heterogeneity, the variability of various properties and the hygroscopicity have to be taken into account. Also the orientation of the wood fibers bonding solid wood has to be considered. 

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