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Lime softening (also known as lime buttering, lime-soda treatment, or Clark's process) [1] is a type of water treatment used for water softening, which uses the addition of limewater (calcium hydroxide) to remove hardness (deposits of calcium and magnesium salts) by precipitation.
Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes
Water extraction is the traditional method for preparation of the plant. Pharmaceutical and herbal supplement companies extract kavalactones from the kava plant using solvents such as supercritical carbon dioxide , [ 50 ] acetone , and ethanol to produce pills standardized with between 30% and 90% kavalactones.
PDF is a standard for encoding documents in an "as printed" form that is portable between systems. However, the suitability of a PDF file for archival preservation depends on options chosen when the PDF is created: most notably, whether to embed the necessary fonts for rendering the document; whether to use encryption; and whether to preserve additional information from the original document ...
Linearized PDF files (also called "optimized" or "web optimized" PDF files) are constructed in a manner that enables them to be read in a Web browser plugin without waiting for the entire file to download, since all objects required for the first page to display are optimally organized at the start of the file. [27]
[1] It is the second largest lake in Nepal and the largest in Gandaki Province after the Rara lake in comparison to Nepal's water bodies. [2] It is the most popular and most visited lake in Nepal. Phewa lake is located at an altitude of 742 m (2,434 ft) and covers an area of about 5.7 km 2 (2.2 sq mi). [ 3 ]
Comfort was the first fabric softener to be launched in the UK in 1969. Today Comfort is a global brand, operating in Europe, Asia, Latin America and the Middle East. 1984 saw the launch of the first concentrated fabric softener for Comfort, which was three times more concentrated than regular fabric conditioner.
The Instructions of Kagemni is an ancient Egyptian instructional text of wisdom literature which belongs to the sebayt ('teaching') genre. Although the earliest evidence of its compilation dates to the Middle Kingdom of Egypt, its authorship has traditionally yet dubiously been attributed to Kagemni, [1] a vizier who served during the reign of the Pharaoh Sneferu (r. 2613–2589 BC), founder ...