[PDF] Top 20 The copper content of sea-water
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The copper content of sea-water
... On comparing the potassium ethyl xanthate and the sodium diethyldithio-carbamate methods for estimating copper the latter was found to be preferable because a It is at least twice as del[r] ... See full document
6
The Influence of the Dead Sea Water Decline on the Concentration Changes of Lithium and Strontium Trace Elements
... Dead Sea is the lowest unique closed basin on the globe, which has the highest water salinity of 349 g/Kg, where the average ocean water salinity is 35 ...mean sea level. The total dissolved ... See full document
11
The Response of Benthic Foraminiferal Assemblages to Copper Exposure: A Pilot Mesocosm Investigation
... Sediment was collected by deployment a Van Veen grab several times to ensure that sufficient material was gathered, which is a technique that has been previously used by [15] and [17]. Once on board, the grab was ... See full document
11
Health Risk Assessment of Some Heavy Metals in Water and Sediment at Marsa Matrouh, Mediterranean Sea, Egypt
... dissolved copper in the investigated beaches were fluc- tuated between ...of copper in Marsa-Matrouh beaches, it was ...natural sea water concentration (2 µg/l) according to [49] but it was ... See full document
24
The iron content of sea water
... graduated flasks, place measured amounts of the standard iron solution or of a fresWy prepared known dilution of it, to give a range of known iron concentrations.. They may be chosen on [r] ... See full document
9
The estimation in sea-water solutions of micro-quantities of mercury in the presence of copper by means of dithizone
... That the extent of this ip.terference depends in some measure on the strength of the dithizone and possibly on the relative amounts ,pf copper and mercury present is shown by the figures[r] ... See full document
9
The phosphate content of sea water in relation to the growth of the algal plankton. Part III.
... Whether the source of the higher phosphate content of the North Sea in May, 1925, was regeneration during the winter or an influx of richer water cannot as yet be decided till the hydrog[r] ... See full document
22
A methodological approach to estimate soil corrosivity for archaeological copper alloy artefacts
... Characterization of soil corrosivity in archaeological sites is an important subject to understand the conservation conditions of archaeological bronze collections and helps conservators to prepare a conservation ... See full document
15
CHARACTERISTIC STUDY ON THE PROPERTIES OF SELF COMPACTING CONCRETE IN SEA WATER SOLUTIONS
... salt content in sea water which initiates the formation of crystals which gives an strong intact reaction to compressive loads and makes concrete more dense as studied by 4 Pruckner, F and Gjorv, OE ... See full document
14
The silica content of some natural waters and of culture media.
... The walls of resistance glass vessels were found to give off no measurable amount of silica to distilled water, but boiling for three hours with sea-water increased the silica content of[r] ... See full document
9
STUDIES ON THE BEHAVIOUR OF LOW CALCIUM FLYASH AND SLAG BASED GEOPOLYMER CONCRETE UNDER SEA WATER
... Any material that contains mostly Silicon (Si) and Aluminium (Al) in amorphous form is a possible source material for the manufacture of geopolymer. Several minerals and industrial by-product materials have been ... See full document
23
Uptake of radioactive sodium (24Na) by Nereis diversicolor Mueller and Perinereis cultrifera (Grube)
... When Nereis is taken from normal sea water and placed in brackish water with a low oxygen content-water through which nitrogen has been passed, or even water which is not kept saturated [r] ... See full document
10
Exogenous hydrogen peroxide increases dry matter production, mineral content and level of osmotic solutes in young maize leaves and alleviates deleterious effects of copper stress
... with sterilized distilled water. Seeds were sown in pots (14 cm height, 16 cm top and 11 cm bottom diameter) containing sterilize water washed sand. Seedlings were grown in a growth chamber with the ... See full document
10
An Experimental Study on Compressive Strength of Concrete using Sea Sand as A Partial Replacement for River Sand
... the sea sand is used for construction. This washed sea sand consists of less amount of salt ...salt content are under tolerable limits. But higher fineness of sea sand carks brittle behavior ... See full document
5
The Laguito Water Body in Cartagena and its Sedimentation Legal Problem against the Increase of the Sea Level for Climate Change
... Caribbean Sea is due to a sedimentation problem and the above has made it a legal problem for the residents of the ...of water that has become a legal ...of water opens and closes from time to time, ... See full document
8
Utilization of Soil Stabilization with Cement and Copper Slag as Subgrade Materials in Road Embankment Construction
... of copper slag on mechanical characteristics for stabilized cement and un-stabilized ...of copper slag ...of copper slag had a significant effect on the unconfined compressive strength ...the ... See full document
14
The nitrate content of sea water
... The dilute standard solutions change their nitrite content readily, and, to ensure accuracy, dilution from a strong solution of nitrite must be made; this strong solution must be replace[r] ... See full document
8
The Sodium and Potassium Content of Sea Water
... This pair of analyses was performed by a modification of Dittmar's method; another pair analysed by Dittmar's method but rejected by Makin in favour of the pair already mentioned gave K/[r] ... See full document
6
The influence of plankton on the phosphate content of stored sea-water
... Matthews 1917 observes that" if the sample is allowed to stand without previous sterilisation the phosphates decrease and may be entirely removed in a few weeks." Atkins 1923 gives actua[r] ... See full document
10
Some observations of the hydrology and plankton of the North Sea and English Channel
... southern North Sea with the more oceanic water of the northern North Sea, which was found to have a high phosphate content; ii Irregular areas of high phosphate content in the warmer Cha[r] ... See full document
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