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Polysulfide polymers are also prepared by the addition of polysulfanes to alkenes. An idealized equation is: 2 RCH=CH 2 + H 2 S n → (RCH 2 CH 2) 2 S n. In reality, homogeneous samples of H 2 S n are difficult to prepare. [2] Polysulfide polymers are insoluble in water, oils, and many other organic solvents.
Sodium polysulfide is a general term for salts with the formula Na 2 S x, where x = 2 to 5. The species S x 2−, called polysulfide anions, include disulfide (S 2 2−), trisulfide (S 3 2−), tetrasulfide (S 4 2−), and pentasulfide (S 5 2−). In principle, but not in practice, the chain lengths could be longer.
Liver of sulfur is a loosely defined mixture of potassium sulfide, potassium polysulfide, potassium thiosulfate, and likely potassium bisulfide. Synonyms include hepar sulfuris, sulfur, sulfurated potash and sulfurated potassa. There are two distinct varieties: "potassic liver of sulfur" and "ammoniacal liver of sulfur". [1]
If calcium hydroxide (builders or hydrated lime) is used, an increase by 1/3 or more (to 115 g/L or more) might be used with the 192 g/L of sulfur. If the quicklime is 85%, 90%, or 95% pure, use 101 g/L, 96 g/L, or 91 g/L; if impure hydrated lime is used, its quantity is increased to compensate, though in practice lime with a purity lower than ...
Thiokol is a trade mark for various organic polysulfide polymers. [1] Thiokol polymers are used as an elastomer in seals and sealants.The distinction between the polymers first commercialized by the Thiokol Chemical Company and subsequent polysulfide materials is often unclear.
Zinc sulfide is used for lenses and other optical devices in the infrared part of the spectrum. ZnS-doped with silver is used in alpha detectors while zinc sulfide with traces of copper has applications in photoluminescent strips for emergency lighting and luminous watch dials. 1850: 1314-98-3: C 6 H 4 S: Polyphenylene sulfide is a polymer ...
This requires the use of the extra-virgin olive oil that you use for daily cooking. Before you ask, no—the eggs do not taste like olive oil. They taste more like eggs, without the dulling effect ...
Inverse vulcanization is a process that produces polysulfide polymers, which also contain some organic linkers. [1] In contrast, sulfur vulcanization produces material that is predominantly organic but has a small percentage of polysulfide crosslinks .