Calcium Tartrate Dihydrate
Calcium tartrate dihydrate is the calcium salt of tartaric acid, used as a food additive and stabilizer in beverages and confectionery. It falls under HTS 2918.13.5000 as a salt of tartaric acid, specifically classified as 'other' salts and esters excluding those specified elsewhere. This chemically defined organic compound meets Chapter 29 note (a) for separate compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If treated as inorganic copper compounds
Could be misclassified under Chapter 28 if focus is on calcium ion rather than organic tartrate anion, but Chapter 29 note 1(C)(1) requires classification with the organic component.
If when imported as food additive mixture
Mixtures not qualifying as chemically defined under Chapter 29 notes fall into prepared binders or Chapter 38, but pure salts remain in 2918.
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Import Tips & Compliance
• Verify purity certificate to confirm it's a chemically defined salt per Chapter 29; ensure food-grade documentation if for consumables; avoid misclassification as inorganic calcium salts under Chapter 28
Related Products under HTS 2918.13.50.00
Potassium Sodium Tartrate (Rochelle Salt)
Potassium sodium tartrate, known as Rochelle salt, is a double salt of tartaric acid used in baking powders and as a sequestrant. Classified under HTS 2918.13.5000 as an 'other' salt of tartaric acid, it fits Chapter 29's scope for organic salts with alcohol function. Its chemical purity distinguishes it from mixtures.
Sodium Tartrate Dibasic
Sodium tartrate dibasic is a salt of tartaric acid employed in buffering solutions and as a food acidity regulator. It qualifies for HTS 2918.13.5000 as an 'other' ester or salt of tartaric acid with alcohol function but no other oxygen groups. Chapter 29 classification prioritizes the organic acid component.
Diethyl Tartrate
Diethyl tartrate is an ester of tartaric acid used as a chiral building block in organic synthesis and fragrances. It is classified under HTS 2918.13.5000 as an 'other' ester of tartaric acid per Chapter 29 note 3(A) for ester classification. The alcohol function without additional oxygen defines its placement.
Dimethyl Tartrate
Dimethyl tartrate serves as an intermediate in pharmaceutical synthesis and polymer production. Under HTS 2918.13.5000 as 'other' tartaric acid esters, it adheres to Chapter 29 rules for carboxylic acids with alcohol function. Its simple ester structure avoids reclassification.
Ammonium Bitartrate
Ammonium bitartrate is used in wine stabilization and as a lab reagent. Classified in HTS 2918.13.5000 as an 'other' salt of tartaric acid, per Chapter 29 note 1(C)(1) for organic salts. The bitartrate form retains carboxylic alcohol function classification.
Magnesium Tartrate
Magnesium tartrate functions as a nutritional supplement and laxative component. It falls under HTS 2918.13.5000 as 'other' tartaric salts with alcohol function, classified by organic component per Chapter notes. Purity ensures Chapter 29 applicability.