Search results
Results from the WOW.Com Content Network
Sodium trimetaphosphate (also STMP), with formula Na 3 P 3 O 9, is one of the metaphosphates of sodium. It has the formula Na 3 P 3 O 9 but the hexahydrate Na 3 P 3 O 9 ·(H 2 O) 6 is also well known. It is the sodium salt of trimetaphosphoric acid. It is a colourless solid that finds specialised applications in food and construction industries ...
The process of assigning HS codes is known as "HS Classification". All products can be classified in the HS by using the General Rules for the Interpretation of the Harmonized System ("GRI") that must be applied in strict order. HS codes can be determined by a variety of factors including a product's composition, its form and its function.
Sodium hexametaphosphate (SHMP) is a salt of composition Na 6 [(PO 3) 6]. [3] Sodium hexametaphosphate of commerce is typically a mixture of metaphosphates (empirical formula: NaPO 3), of which the hexamer is one, and is usually the compound referred to by this name. Such a mixture is more correctly termed sodium polymetaphosphate.
Sodium trimetaphosphate; U. Uranyl metaphosphate This page was last edited on 29 November 2021, at 16:37 (UTC). Text is available under the ... Code of Conduct;
Trimetaphosphate is a cyclic trimer formed by the self reaction of metaphosphate ions. A metaphosphate ion is an oxyanion that has the empirical formula PO − 3. [1] It was first postulated in 1955 [2] but was not observed until 1979, when it was detected by mass spectrometry. [3]
n.o.s. = not otherwise specified meaning a collective entry to which substances, mixtures, solutions or articles may be assigned if a) they are not mentioned by name in 3.2 Dangerous Goods List AND b) they exhibit chemical, physical and/or dangerous properties corresponding to the Class, classification code, packing group and the name and description of the n.o.s. entry [2]
The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.
The cyclic polyphosphates, called metaphosphates, include the trimer sodium trimetaphosphate and the tetramer, Na 3 P 3 O 9 and Na 4 P 4 O 12, respectively. Polymeric sodium phosphates are formed upon heating mixtures of NaH 2 PO 4 and Na 2 HPO 4, which induces a condensation reaction. The specific polyphosphate generated depends on the details ...