Copper is a metallic element that occurs naturally as the free metal, or associated with other elements in compounds that comprise various minerals. Most copper compounds occur in +1 Cu(I) and +2 Cu(II) valence states. Copper is primarily used as a metal or an alloy (e.g., brass, bronze, gun metal). Copper sulfate is used as a fungicide, algicide, and nutritional supplement. Copper particulates...

Early diagenetic sediment-hosted stratiform copper (eSSC) mineralization results from low-temperature cuprous chloride complexes carried by saline aqueous solution circulating through footwall aquifers. Favorable copper solubilities are attained in moderately oxidizing, near-neutral pH solutions. That specific oxidation level is not determined by co-existence with hematite, with its near-indisc...

The purpose of this study was to obtain detailed data on the dietary intake of energy, macronutrients, and micronutrients, especially minerals and vitamins, of healthy free-living people over the age of 70 in Japan and to clarify the correlations among nutrient intakes. The survey was conducted in November 2001 for 57 persons (men: 31, women: 26) aged 74 y (born in 1927) living in Niigata City,...

Copper smelting slags are hard materials. Therefore,to recover their copper by flotation method, grinding should be carried out to obtain optimal particle size. Copper smelting slags in the Bardeskan district, with work index of 16.24 kwh/st, were grinded for 65 minutes to reach an acceptable degree of freedom for the flotation tests, with particle size of 80%, smaller than 70 μm. With this gri...

the darreh-zar porphyry copper deposit, located in the urumieh – dokhtar magmatic belt, lies about 10 km southeast of sar-cheshmeh porphyry copper deposit. the ore body with hydrothermally altered zones including potassic, chlorite-sericite, sericite, argillic and propylitic all related to the darreh-zar porphyry stock intruded the eocene volcanic rocks. pyrite, chalcopyrite, molybdenite, with ...

The present study was undertaken to the effect of different minerals on infertility in cows (n=885) belonging Northern Western Himalayan regions state. Cows suffering from types such as endometritis, anestrus, silent estrus and showing metestrual bleeding were evaluated compared with normal cyclic pregnant cows. Minerals calcium, phosphorous, magnesium, copper, zinc, sodium, potassium. levels c...

This study was carried out to determine the mineral concentrations in the hair and serum of normal pregnant women and hair mineral concentrations in cases of obstetric disorders. The hair mineral concentrations were analyzed by inductively coupled plasma atomic emission spectrometry. Serum mineral concentrations were analyzed by the established method. The following results and conclusions were...