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Boron 1788 INDEX

Nutrient Index = Nitrogen Index x Phosphorus Index x Potassium Index X Boron Index x Sodium Index = (1.418 + 0.348 In N) x [1 + 0.195 In (P/60)l... [Pg.3587]

Table 9. Oxygen Index of Flexible PVC Containing Antimony and Boron... Table 9. Oxygen Index of Flexible PVC Containing Antimony and Boron...
The generally acidic materials in this group may function as oxidants, some rather powerful, under appropriate conditions. Individually indexed compounds are Arsenic pentaoxide, 0106 Arsenic trioxide, 0105 Boron trioxide, 0170 Carbon dioxide, 0557 f Carbon monoxide, 0555... [Pg.286]

In this group of readily oxidised materials, individually indexed compounds are Arsenic trisulfide, 0108 Bis(2,4-dinitrophenyl) disulfide, 3449 Bis(2-nitrophenyl) disulfide, 3465 Boron trisulfide, 0172 f Carbon disulfide, 0560 Carbon sulfide, 0559 f Carbonyl sulfide, 0556... [Pg.289]

General procedure for deprotection of mono- and polymethyl-aryl ethers with boron tribromide.41 To a 10-ml flask fitted with a septum and magnetic stirrer bar are added reactant (3.6 mmol) and 5 ml of dichloromethane. An inert atmosphere is established and maintained. This mixture is cooled in a dry ice/propan-2-ol bath and boron tribromide [0.13 ml, 1.32 mmol (for monomethyl ethers), or 0.38 ml, 4 mmol (for dimethyl ethers)] is added through the septum by use of a syringe. The cold bath is removed and the mixture stirred for 30 minutes, poured into ice water, stirred for 30 minutes, saturated with salt and extracted with dichloromethane. The extract is dried and concentrated. The purity of the product is established by h.p.l.c. analysis on a Waters Associates 6000A model using both refractive index and u.v. absorbance detectors with a Waters 3.9mm i.d. x 30cm p-Bondapack Ci8 reverse phase column. [Pg.989]

CONTENTS Preface. Bruce E. Maryanoff and Cynthia A. Maryanoft. Novel An-tipsychotics with Unique D /5-HT1A Affinity and Minimal Extrapyramidal Side Effect Liability. Allen B. Reitz and Malcolm K. Scott. Antiplatelet and Antithrombotic Agents From Viper Venom Proteins, to Peptides and Peptidomimetics. to Small Organic Molecules, Peter L. Barker and Robert R. Webb. II. Discovery and Preclinical Development of the Serotonin Reuptake Inhibitor Sertraline, Willard M. Welch. Boronic Acid Inhibitors of Dipeptidyipeptidase IV A New Class of Immunosuppressive Agents, Roger J. Snow. Index. [Pg.324]

Mixture of boron carbide with 30 wt% SiC (layers with index 1, bulk compressive stress)... [Pg.191]

Pure boron carbide (layers with index 2, bulk tensile stress). [Pg.191]

Modified hard-core RMs by phosphosulfurized compound. Improved extreme-pressure and antiwear properties have also been obtained with the introduction of some chemical species, such as sulfur, phosphorus or boron derivatives, into the colloidal core (Delfort et al., 1998 Inoue, 1993 Inoue and Nose, 1987). Welding loads, load wear index and wear scar diameter at 5 wt% of a CaC03 core surrounded by a calcium alkylaryl-sulfonate surfactant shell, and modified by phosphosulfurized calcium carbonate core were evaluated for calcium dialkyl dithiophosphate (CaDTP) and calcium trithiophosphate (CaTTP) with the four-ball extreme-pressure test (ASTM D2783 standard method). Both modified products exhibit improved extreme-pressure performances (welding load and load wear index), while their antiwear properties (wear scar diameter) compared to those of the original micellar substrate remain at least at the same level. [Pg.104]

LP-CVD ZnO Total and diffuse transmittance (TT and DT) for boron-doped LP-CVD ZnO films are shown in Fig. 6.17 as a function of the film thickness. TT remains superior to 85% in the spectral range [500-900 nm] for ZnO layers with d < 1.5 pm. Because 15% of the incident light is reflected due to the change of refractive index at the air/ZnO and glass/air interfaces, this means that, for d < 1.5 pm, the absorption of the LP-CVD ZnO B itself is too low to be measured by the spectrometer. TT is reduced by only about 5% for a thickness d = 3 pm. This means that 3 pm-thick ZnO films still have a high transparency, in spite of their relatively high thickness. For A > 900 nm,... [Pg.250]

Names used in this cumulative Subject Index for Volumes XVI and XVII, as well as in the text, are based for the most part upon Nomenclature of Inorganic Chemistry, Definitive Rules 1970 Report of the Commission on the Nomenclature of Inorganic Chemistry of the International Union of Pure and Applied Chemistry, Butterworths, London, 1971 [see Pure Appl. Chem. 27(1), 1-110] also on the Tentative Rules of Organic Chemistry—Section D and Nomenclature of Inorganic Boron Compounds [Commission on Nomenclature of Inorganic Chemistry, IUPAC, published in Pure Appl. Chem. 30(3 -4), 683 - 710 (1972)]. All of these rules have been approved by the ACS Committee on Nomenclature. Conformity with approved organic usage is also one of the aims of the nomenclature used here. [Pg.205]


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