Sourcing Potassium sodium tartrate tetrahydrate?
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EDTA disodium salt dihydrate
chelating agent for metal ions
Sourcing Potassium sodium tartrate tetrahydrate?
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Potassium sodium tartrate tetrahydrate, commonly known as Rochelle salt, is a double salt of tartaric acid. It was among the first materials discovered to exhibit piezoelectricity, leading to its historical use in electronic components such as crystal phonograph cartridges, microphones, and earpieces.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
The international HS code for Potassium sodium tartrate tetrahydrate (CAS 6381-59-5) is 2918.13.
2918.13
2918 13 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
potassium;sodium;(2R,3R)-2,3-dihydroxybutanedioate;tetrahydrate
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[C@@H]([C@H](C(=O)[O-])O)(C(=O)[O-])O.O.O.O.O.[Na+].[K+]