Calcium tartrate: Difference between revisions

| verifiedrevid = 399703325

| Name = Calcium tartrate

| ImageFile = Calcium tartrate.png

| ImageSize = 200px

| ImageName =

| IUPACName = 2,3-Dihydroxybutanedioic acid calcium salt

| SMILES = [Ca+2].O=C([O-])C(O)C(O)C([O-])=O

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| CASOther = &nbsp;(anhydrous)<br />5892-21-7] (tetrahydrate)

| RTECS =

| Formula = CaC₄H₄O₆

| MolarMass = 188.15 g/mol (anhydrous)<br /> 260.21 g/mol (tetrahydrate)

| Appearance = [[hygroscopic]] white powder<br /> or colorless crystals

| Density = 1.817 g/cm³ (tetrahydrate)

| Solubility = 0.037 g/100 ml (0 °C)

| MeltingPt = tetrahydrate decomposes at 160 °C<br /> anhydrous decomposes at 650 °C

| CrystalStruct = ''d'' or ''l'' [[rhombic]]<br /> ''dl'' [[triclinic]]

| ExternalMSDS = [http://www.sciencelab.com/xMSDS-L_Calcium_Tartrate_Hydrate-9923279#search=%22MSDS%20calcium%20tartrate%22 Calcium tartrate]

| MainHazards =

| RPhrases =

| SPhrases =

'''Calcium tartrate''' is a byproduct of the [[wine]] industry, prepared from wine [[Ethanol fermentation|fermentation]] dregs. It is the [[calcium]] [[salt (chemistry)|salt]] of [[tartaric acid]], an acid most commonly found in ripe [[grape]]s. Its [[solubility]] decreases with colder temperature, which results in the forming of whitish (in red wine often reddish) crystalline clusters as it precipitates. It finds use as a [[food preservative]] and [[acidity regulator]]. Like [[tartaric acid]], calcium tartrate has two asymmetric carbons, hence it has two [[Chirality (chemistry)|chiral]] [[isomer]]s and a non-chiral isomer (meso-form). Most calcium tartrate of biological origin is the chiral levorotatory (–) isomer.

{{Unreferenced|date =September 2007}}

[[ar:طرطرات الكالسيوم]]

[[es:Tartrato de calcio]]

[[hu:Kalcium-tartarát]]