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Before World War I the beet sugar industry used 100,000 to 150,000 tons of strontium hydroxide for this process per year. [42] The strontium hydroxide was recycled in the process, but the demand to substitute losses during production was high enough to create a significant demand initiating mining of strontianite in the Münsterland .
Sri Lanka’s gem industry has a very long and colorful history. Sri Lanka was affectionately known as Ratna-Dweepa which means Gem Island. The name is a reflection of its natural wealth. Marco Polo wrote that the island had the best sapphires, topazes, amethysts, and other gems in the world. [1]
Traditional Sri Lankan rice and curry. Sri Lankan cuisine is known for its particular combinations of herbs, spices, fish, vegetables, rices, and fruits.The cuisine is highly centered around many varieties of rice, as well as coconut which is a ubiquitous plant throughout the country.
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The ideal formula of strontianite is SrCO 3, with molar mass 147.63 g, [4] but calcium (Ca) can substitute for up to 27% of the strontium (Sr) cations, and barium (Ba) up to 3.3%. [2] The mineral was named in 1791 for the locality, Strontian, Argyllshire, Scotland, where the element strontium had been discovered the previous year. [2]
It is used for manufacturing color television receivers to absorb electrons resulting from the cathode. [5] It is used in the preparation of iridescent glass, luminous paint, strontium oxide, and strontium salts and in refining sugar and certain drugs. It is widely used in the ceramics industry as an ingredient in glazes.
The history of Sri Lanka covers Sri Lanka and the history of the Indian subcontinent and its surrounding regions of South Asia, Southeast Asia and the Indian Ocean. Prehistoric Sri Lanka goes back 125,000 years and possibly even as far back as 500,000 years. [1] The earliest humans found in Sri Lanka date to Prehistoric times about 35,000 years ...
Harischandra Mills PLC is a food processing company in Sri Lanka. Founded by C. A. Harischandra in 1943, Harischandra Mills was a pioneer in employee provident funds, establishing one in 1952, six years before the national Employees' Provident Fund. The company was incorporated in 1953 and listed on the Colombo Stock Exchange in 1983.