Acidi tartarik

Acidi tartarik
Names
IUPAC name 2,3-dihydroxybutanedioic acid
Other names 2,3-dihydroxysuccinic acid threaric acid racemic acid uvic acid paratartaric acid
style="background: #F8EABA; text-align: center;" colspan="2"	Identifiers
CAS number	526-83-0
SMILES	`O=C(O)C(O)C(O)C(=O)O`
ChemSpider ID	852
style="background: #F8EABA; text-align: center;" colspan="2"	Properties
Formula molekulare	C₄H₆O₆ (Basic formula) HO₂CCH(OH)CH(OH)CO₂H(Structural formula)
Masa molare	150.087 g/mol
Appearance	white powder
Dendësia	1.79 g/mL (H₂O)
Melting point	171–174 °C (L-tartaric) 206 °C (DL, racemic) 146–148 °C (meso)
Solubiliteti nëwater	133 g/100ml (20 °C)
Aciditeti (pK_a)	L(+) 25 °C : pK_a1= 2.95 pK_a2= 4.25 meso 25 °C: pK_a1= 3.22 pK_a2= 4.85
style="background: #F8EABA; text-align: center;" colspan="2"	Hazards
Klasifikimi EU	Irritant(Xi)
R-phrases	R36
style="background: #F8EABA; text-align: center;" colspan="2"	Related compounds
Kompozicioni të ngjashme	2,3-Butanediol Cichoric acid
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Acidi tartarik

Names

2,3-dihydroxybutanedioic acid

Other names

2,3-dihydroxysuccinic acid
threaric acid
racemic acid
uvic acid
paratartaric acid

style="background: #F8EABA; text-align: center;" colspan="2"

Identifiers

526-83-0