منابع مشابه
Microcrystalline-Cellulose Hydrolysis with Concentrated Sulphuric Acid
The effects of temperature (25-40°C), H,SO, concentration (31-70% (w/v)) and the acid/substrate relationship (1-5 cm3 of H,SO, per g-' of cellulose) on the solubilization rate of microcrystalline cellulose and on the glucose production rate have been analysed. The solubilization process was by determining reducing groups present in solution. For acid/substrate relationships of more than 1 cm3 g...
متن کاملSulphuric Acid in Cholera
can only be properly prescribed by the medical attendant. There is no single antidote. As a valuable adjunct against the epidemic the following orangeade, suggested by Dr. Waller Lewis, has been extensively used with excellent effects :? " Sulphuric Orangeade useful in Cholera times.?Concentrated compound infusion of orange peel 3 oz., simple syrup 12 oz., boiled filtered water 4 gallons, mix w...
متن کاملA statistical proxy for sulphuric acid concentration
Gaseous sulphuric acid is a key precursor for new particle formation in the atmosphere. Previous experimental studies have confirmed a strong correlation between the number concentrations of freshly formed particles and the ambient concentrations of sulphuric acid. This study evaluates a body of experimental gas phase sulphuric acid concentrations, as measured by Chemical Ionization Mass Spectr...
متن کاملLeaching of basic oxygen furnace sludge with sulphuric acid
In this study the hydrometallurgical processing of BOF sludge in the sulphuric acid solutions under atmospheric pressure and temperatures up to 100 °C is investigated on a laboratory scale. The influence of sulphuric acid concentration, temperature, time and liquid to solid ratio (L:S) on the leaching process was studied. The main aim of this study was to determine optimal conditions when the m...
متن کاملMetachromasia after treating tissue sections with sulphuric acid.
on the capacity of tissue elements to strain metachromatically. Surprising as it may seem, adequately fixed and dehydrated tissues withstand five minutes' immersion in concentrated sulphuric acid without charring or showing any severe disturbance of their structure. Subsequent staining with a metachromatic dye reveals that a greatly increased range of tissue elements shows a metachromatic affin...
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ژورنال
عنوان ژورنال: The Lancet
سال: 1838
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(02)84124-1