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Properties of substance:
D-(-)-tartatic acid
Group of substances:
organic
Physical appearance:
colorless monoclinic crystals
Empirical formula (Hill's system for organic substances):
C
4
H
6
O
6
Structural formula as text:
HOOCCH(OH)CH(OH)COOH
Molar/atomic mass: 150.09
Melting point (°C):
170
Solubility (g/100 g of solvent):
acetone
: soluble [
Ref.
]
diethyl ether
: 0.55 (15°C) [
Ref.
]
ethanol
: 32.4 (16°C) [
Ref.
]
glycerol
: soluble [
Ref.
]
methanol
: 59 (20°C) [
Ref.
]
water
: 139 (20°C) [
Ref.
]
water
: 343 (100°C) [
Ref.
]
Numerical data:
Year of discovery: 1769
Density:
1.7598 (20°C, d
4
)
Reactions:
Yeild 100%. [
Ref.1
]
HOOCCH(OH)CH(OH)COOH + H
5
IO
6
→ 2HOOCCHO + HIO
3
+ 3H
2
O
Dissociation:
pK
a
(1) = 2.98 (25°C, water)
pK
a
(2) = 4.34 (25°C, water)
Enthalpy (heat) of solution Δ
sol
H (kJ)
13.7 (s) [
Ref.
]
References:
Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 1.312
Yalkowsky S.H., Yan H., Jain P. Handbook of aqueous solubility data. – 2nd ed. - CRC Press, 2010. - pp. 100-101
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 395 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 572-573 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru