ProP system

Bhushan, B., Kulkami, A.V., Bonin, W. and Wyrobek, J.T., Nanoindentation and picoin dentation measurements using a capacitive transducer system in atomic force microscopy. Philos. Mag. A Phys. Condens. Matter Struct. Defects Mech. Prop., 74(5), 1117-1128 (1996). 

The walkthrough should focus on uneven temperatures, persistent odors, drafts, sensations of stuffiness. You may find that occupants are attempting to compensate for an HVAC system that doesn t meet their needs. Look for propped-open corridor doors, blocked or taped-up diffusers, popped-up ceiling tiles, people using individual fans/heaters or wearing heavier (or lighter) clothing than normal. 

MI233 M. D Auria, in Targets in Heteroeyelie Systems, Chemistry and Prop-... 

A number of di- and tri-(3-A-morpholinopropyn-l-yl)-l-methylpyrazoles were prepared by the condensation of corresponding iodopyrazoles with 4-prop-2-ynylmorpholine in presence of Cu(0), K2CO3 in boiling pyridine, but without palladium catalyst. Despite the low activity of this catalytic system and the long condensation time (75-95 h) the yield of 3,4-di-, 4,5-di-, and 3,4,5-tri-(3-A-morpholinopropyn-l-yl)-l-methylpyrazoles reached 70-80% (Schemes 42 and43). 

The acetylene aminopyrazole 103 was capable of inhibiting the processes of lipid peroxidation both in the enzymatic and nonenzymatic peroxidation system (76MI2). Finally, 4-[3-(l-methyl-l//-pyrazol-3-yl)-prop-2-ynyl]morpholine hydrochloride 104 was patented as a compound with high hypoxic activity (93MIP1). 

Di- and tetraynes with hydrogen sulfide in an alkaline medium at 20-80°C form systems containing linked thiophene cycles. Thus, l,4-dithienylbuta-l,3-diyne (47) forms 2,5-di(2-thienyl)thiophene (48) in 78% yield, whereas octa-2,4,6-tiiyn-l-ol (49) under the same conditions gives 5-hydroxymethyl-2-prop-1-ynylthiophene (50) in 50% yield (77HOU947). 

Methanol is a dangerous fire hazard when exposed to heat or flame, and a moderate expl hazard when exposed to flame. It is a dangerous disaster hazard upon exposure to heat or flame, and can react vigorously with oxidizing materials. Methanol possesses distinct narcotic props, and is also a slight irritant to the mucous membranes. Its main toxic effect is exerted upon the nervous system, particularly the optic nerves and possibly the retinae. In the body the products formed by its oxidn are formaldehyde and formic acid, both of which are toxic. Because of the slowness with which it is eliminated, methanol should be regarded as a cumulative poison (Ref 5)... 

P.C. Thijssen, L.T.M. Prop, G. Kateman and H.C. Smit, A Kalman filter for calibration, evaluation of unknown samples and quality control in drifting systems. Part 4. Flow Injection Analysis. Anal. Chim. Acta, 174 (1985) 27-40. 

Buselmaier W, Roehrborn G, Propping P. 1976. Comparative investigations on the mutagenicity of pesticides in mammalian test systems. Mutat Res 21 25-26. 

Fickett in "Detonation Properties of Condensed Explosives Calculated with an Equation of State Based on Intermolecular Potentials , Los Alamos Scientific Lab Rept LA-2712 (1962), pp 34-38, discusses perturbation theories as applied to a system of deton products consisting of two phases one, solid carbon in some form, and the other, a fluid mixt of the remaining product species. He divides these theories into two classes conformal solution theory, and what he chooses to call n-fluid theory. Both theories stem from a common approach, namely, perturbation from a pure fluid whose props are assumed known. They differ mainly in the choice of expansion variables. The conformal solution method begins with the assumption that all of the intermolecular interaction potentials have the same functional form. To obtain the equation of state of the mixt, some reference fluid obeying a common reduced equation of state is chosen, and the mixt partition function is expanded about that of the reference fluid... 

Eq (1) states that there is a balance of the heat evolved in the chemical reaction, the heat conducted from the site of the reaction and the increase in the temp of the system. It is the term q which both.determines the expl props of a reactant and is the source of mathematical obstacles to finding the soln of eq (1). This is so because the peculiar nature of expl reaction requires a mathematical expression for q which will allow a very rapid change of reaction rate within a narrow temp range. The conventional two-constant Arrhenius term satisfies the requirement, providing the exothermicity of the... 

Fluoro-Nitro Compounds. Theprepns, structures, physical props 8t chem props of oxy-fluorides of N(NOF) nitrylhypofluorite (NOgF) the prepn St props of NOF-HF addicts, the chemistry of N0F-3HF, the NOaF— HF system, reactions of NOF N02F with acceptor fluorides addn of NOF St N02F across double bonds N,N-di fluoro hydroxyl-amines and uses of N oxide fluorides are discussed by Scbmutzler (Ref 2)... 

Of the three isomers, the 1, 4- or para form is an especially powerful skin irritant. It will cause kerato-conjunctivitis, swollen conjunctiva eczema of the eyelids. Systemic poisoning is uncommon, but at least one fatal case of liver damage is reported. The m- o- diaminobenzenes are somewhat less toxic than the p- isomer (Ref 4). Other props and methods of prepn are given in the Refs Refs 1) Beil 13, 6, (5) [8] 2) Beil 13,... 

Brinkley Jr W.E. Gordon, ComptRendCongr-IntemChimlnd 31 e, Liege, 1958 (Publ in IndChimBelge (Suppl), 231 —39(1959) (Expl props of AN-fuel oil system. Max deton was obtd with 6% oil content, 1300ft/sec)... 

They can be handled analogous to thermosetting resins, and thus the use of highly volatile comonomers, such as ethene or prop-ene is prohibitive. Instead, other vinyl monomers are used. A heat curable formulation uses a mixture of tetracyclododecene, 2-norbomene, 5-vinyl-2-norbomene, and divinylbenzene as reactive components (41). The mixture further contains 3,5-di-ferf-butylhy-droxyanisole as antioxidant and a hybrid catalyst system containing a zirconium based metathesis catalyst and a radical catalyst. The metathesis catalyst is benzylidene (l,3-dimesitylimidazolidin-2-yl-idene)(tricyclohexylphosphine)ruthenium dichloride and the radical catalyst is di-ferf-butyl peroxide. 

HNOj at 0° total press was also measured. Dunning Nutt(Ref 11) gave freezing points of acetyl nitrate and anhyd HNO. Chedin Feneant(Refs 7 9) gave Raman spectra of mixts Ac,0 HNO, at -10°, as well as some other props, MaTkova(Refs 13 14) investigated the systems AcaO-HN0, by methods of physico-chemical analysis Refs l)Beil 2,171,(79) [175] 3) A. 

Hydrazine Azide Monohydrazinate, NjHjN,-N2H4, raw 107.13, N9l>53% wh delq crysts, mp 66.4° v sol in w or in anhyd hydrazine. Prepd by treatment of a nearly satd soln of hydrazine azide in anhyd hydrazine with an equal vol of abs ale (Ref 6). This solvate was first obtained by Riegger in the lab of Cornell Univ (Ref 3) and has the same empirical formula as normal hydrazonitrous acid (3 -hydrazinopentazane) or as heptazane (Refs 5 6). In order to establish the identity of this monohydrazinate and establish whether higher solvates exist, the temp-concn diagram was detd for the system hydrazine azide-hydrazine. This investigation showed only one solvare formed, with eutectics located at 51° and -17°C (Ref 6) (Also see Refs 7 9X No expl props were mentioned... 

Tanaka and co-workers have investigated the dehydrogenative double silylation of carbonyl-containing compounds with o-bis(dimethylsilyl)ben-zene [Eqs. (66) and (67)].173 High-yield 1,2-double silylation occurs in reactions of heptanal, benzaldehyde, and diphenylketene catalyzed by Pt(CH2 = CH2)(PPh3)2 or Pt(dba)2. In contrast, the 1,4-double silylation product is formed for a,/3-unsaturated aldehyde or a,/3-Unsaturated ketone substrates, such as prop-2-enal and but-3-en-2-one. The system may also be affected by sterics reaction of ( )-3-phenyl-2-propenal gives 1,2-adduct as the major product and only minor amounts of 1,4-adduct. Hydrosilylation products were not formed in any of the carbonyl systems studied. 

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