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Nonidet P-40 is a nonionic, non-denaturing detergent. Its official IUPAC name is octylphenoxypolyethoxyethanol. Nonidet P-40 is sometimes abbreviated as NP-40, but should not be confused with a different detergent by the same name NP-40 , nonylphenoxypolyethoxyethanol of the Tergitol NP series of Dow Chemicals.
Confusingly, biochemical protocols published between the 1960s [3] and 2000s refer to Shell's Nonidet P-40 as NP-40. Shell's original Nonidet P-40 had a hydrophilic-lipophilic balance (HLB) value of 13.5, [ 4 ] as opposed to 12.9 for the currently available IGEPAL CA-630 , [ 5 ] indicating that the currently available compound is more potent ...
Tank connectors are a type of tank fitting also known as tank inlets, tank outlets, or tank nipples. This fitting must be leakage proof, as the water supply (inward and outward) depends on same. Many different varieties of tank connectors exist. Tank connectors are widely made of plastic or brass. They have a flange either on the edge of one ...
It is occasionally used for the treatment of stabilisation of joints that regularly dislocate, particularly in patients with Ehlers-Danlos syndrome. [3] In the UK, Ireland, Italy, Australia, New Zealand and South Africa, it is sold under the trade-name Fibro-Vein in concentrations of 0.2%, 0.5%, 1.0%, and 3%.
The iOverlander [2] database maintained by travelers, My LPG [3] and the Facebook group "Cooking Gas Around the World [4]" provide more information about individual sources per country. Much general information about global LPG use and standardization is available from the World LPG Association [ 5 ] and the AEGPL [ 6 ]
IGEPAL CA-630 has HLB of 13.4, similar to that of Triton X-100 (13.4) and thus belongs to the detergent range (HLB 13-15); this is significantly less than 17.8 of tergitol NP-40 or 16.7 of Polysorbate 20 (also known as Tween 20), which both belong in the solubilizer range (15-18) of HLB. [2] Ca-630 is completely miscible with water.
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