Amidosulphonic acid. SO2 was bubbled through a saturated solution of hydroxylamine hydrochloride [Raschig, 1887] for 48 hr. at room temperature and the mixture kept at 100 for,a further 3-4 days. The crystals of NH2SO3H were recrystallized from H20 (500 -+ -100).. Sodium nitrite. A.R. NaNO2 was twice recrystallized and analysed volumetrically by the method of Adie & Wood [1900] as modified by C...

The release of crude tritium gas from neutron-irradiated LiAI alloy, and the following purification and the trapping of the gas have been preliminary studied to obtain information necessary for the development of tritium technology. The percentages of the fractions of H2(T) and H20(T) occupying about 99% among gaseous species(T) released were largely influenced by pre-irradiation treatment of t...

Plants are considered as rich resources of ingredients which can be used in drug development pharmacopoeia Medicinal, non-pharmacopoeial or synthetic drugs. 100g each plant part were extracted using different organic and aqueous solvents have varying polarity (Petroleum ether, EtOAc, EtOH,H20).The extract was filter the subjected to column tube. Compound from mixture compounds collected Alkaloi...

During the 1993 NASA Stratospheric Photochemistry, Aerosols and Dynamics Expedition (SPADE), anomalously low nitric oxide (NO) was found in a distinct sunlit layer located above the mid-latitude tropopause. The presence of a significant amount of reactive nitrogen (NOy) in the layer implies the systematic removal of NO, which is without precedent in stratospheric in situ observations. Large inc...

Infrared predissociation spectroscopy of ion-solvent clusters has allowed us to examine the effects of sequential hydration on the reactivity of cations such as NO, NO2, and protonaled formaldehyde, H2COH, stable gas phase ions which are known to undergo rapid reactions in aqueous solution. Our experiments demonstrate that these ions undergo hydration reactions at critical cluster sizes. The sm...

Solution aerosols are injected into an inductlvety coupled argon plasma (ICP) to generate a relatively high number density of positive ions derived from elemental constituents. A small fraction of these ions is extracted through a sampling orifice into a differentially pumped vacuum system housing an ion lens and quadrupole mass spectrometer. The positive ion mass spectrum obtained during nebul...

Curves as a subject of differential geometry have been intriguing for researchers throughout mathematical history and so they have been one of the interesting research fields. Regular curves play a central role in the theory of curves in differential geometry. In the theory of curves, there are some special curves such as Bertrand curves, Mannheim curves, involute and evolute curves, and pedal ...

examined by measuring Pimax once a week for 4 weeks in 91 patients with chronic obstructive pulmonary disease using an aneroid pressure gauge. Five Pimax trials were conducted at each test. From the first to the fourth test, the Pimax increased by a mean of 9 cm H20 (SD 10). From the third to the fourth test, Pimax increased by a mean of 2 cm H20 and performance appeared to be plateauing. The t...