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L(+)-Tartaric acid

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L(+)-Tartaric acid Basic information

Product Name:
L(+)-Tartaric acid
CAS:
87-69-4
MF:
C4H6O6
MW:
150.09
EINECS:
201-766-0
Mol File:
87-69-4.mol
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L(+)-Tartaric acid Chemical Properties

Melting point:
170-172 °C(lit.)
alpha 
12 º (c=20, H2O)
Boiling point:
191.59°C (rough estimate)
Density 
1.76
vapor density 
5.18 (vs air)
vapor pressure 
<5 Pa (20 °C)
refractive index 
12.5 ° (C=5, H2O)
FEMA 
3044 | TARTARIC ACID (D-, L-, DL-, MESO-)
Flash point:
210 °C
storage temp. 
Store at RT.
solubility 
H2O: soluble1M at 20°C, clear, colorless
pka
2.98, 4.34(at 25℃)
form 
Solid
color 
White or colorless
PH
1.6 (100g/l, H2O, 25℃)
optical activity
[α]20/D +13.5±0.5°, c = 10% in H2O
Water Solubility 
1390 g/L (20 ºC)
Merck 
14,9070
JECFA Number
621
BRN 
1725147
Stability:
Stable. Incompatible with oxidizing agents, bases, reducing agents. Combustible.
InChIKey
FEWJPZIEWOKRBE-JCYAYHJZSA-N
CAS DataBase Reference
87-69-4(CAS DataBase Reference)
NIST Chemistry Reference
Butanedioic acid, 2,3-dihydroxy- [r-(r*,r*)]-(87-69-4)
EPA Substance Registry System
Tartaric acid (87-69-4)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38-41
Safety Statements 
26-36-37/39-36/37/39
WGK Germany 
3
RTECS 
WW7875000
Autoignition Temperature
797 °F
Hazard Note 
Irritant
TSCA 
Yes
HS Code 
29181200

MSDS

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L(+)-Tartaric acid Usage And Synthesis

Chemical Properties

white crystals

Chemical Properties

Tartaric acid occurs as colorless monoclinic crystals, or a white or almost white crystalline powder. It is odorless, with an extremely tart taste.

Uses

L-(+)-Tartaric Acid is a naturally occurring chemical compound found in berries, grapes and various wines. It provides antioxidant properties and contributes to the sour taste within these products.

Uses

In the soft drink industry, confectionery products, bakery products, gelatin desserts, as an acidulant. In photography, tanning, ceramics, manufacture of tartrates. The common commercial esters are the diethyl and dibutyl derivatives used for lacquers and in textile printing. Pharmaceutic aid (buffering agent).

Definition

ChEBI: A tetraric acid that is butanedioic acid substituted by hydroxy groups at positions 2 and 3.

Production Methods

Tartaric acid occurs naturally in many fruits as the free acid or in combination with calcium, magnesium, and potassium.
Commercially, L-(+)-tartaric acid is manufactured from potassium tartrate (cream of tartar), a by-product of wine making. Potassium tartrate is treated with hydrochloric acid, followed by the addition of a calcium salt to produce insoluble calcium tartrate. This precipitate is then removed by filtration and reacted with 70% sulfuric acid to yield tartaric acid and calcium sulfate.

Pharmaceutical Applications

Tartaric acid is used in beverages, confectionery, food products, and pharmaceutical formulations as an acidulant. It may also be used as a sequestering agent and as an antioxidant synergist. In pharmaceutical formulations, it is widely used in combination with bicarbonates, as the acid component of effervescent granules, powders, and tablets.
Tartaric acid is also used to form molecular compounds (salts and cocrystals) with active pharmaceutical ingredients to improve physicochemical properties such as dissolution rate and solubility.

Safety Profile

Moderately toxic by intravenous route. Mildly toxic by ingestion. Reaction with silver produces the unstable silver tartrate. When heated to decomposition it emits acrid smoke and irritating fumes.

Safety

Tartaric acid is widely used in food products and oral, topical, and parenteral pharmaceutical formulations. It is generally regarded as a nontoxic and nonirritant material; however, strong tartaric acid solutions are mildly irritant and if ingested undiluted may cause gastroenteritis.
An acceptable daily intake for L-(+)-tartaric acid has not been set by the WHO, although an acceptable daily intake of up to 30 mg/kg body-weight for monosodium L-(+)-tartrate has been established.
LD50 (mouse, IV): 0.49 g/kg

storage

The bulk material is stable and should be stored in a well-closed container in a cool, dry place.

Incompatibilities

Tartaric acid is incompatible with silver and reacts with metal carbonates and bicarbonates (a property exploited in effervescent preparations).

Regulatory Status

GRAS listed. Accepted for use as a food additive in Europe. Included in the FDA Inactive Ingredients Database (IM and IV injections; oral solutions, syrups and tablets; sublingual tablets; topical films; rectal and vaginal preparations). Included in nonparenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients.

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L(+)-Tartaric acidSupplierMore

Zhejiang Genebest Pharmaceutical Co.,Ltd. Gold
Tel:
86-571-63348198
Email:
genebest@163.com sales@genebest.com
Spectrum Chemical Manufacturing Corp. Gold
Tel:
021-67601398-809
Email:
marketing_china@spectrumchemical.com;
Secco work (Beijing) chemical technology co., LTD Gold
Tel:
010-69755668
Email:
343367102@QQ.COM
Shanghai Aladdin Bio-Chem Technology Co.,LTD Gold
Tel:
021-20337333-801
Email:
market@aladdin-e.com
Wuhan Zeuschem. Co. Ltd. Gold
Tel:
027-88866057-18071542427-18071545453-18071546827-18062648743
Email:
1735832116@qq.com
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