L(+)-Tartaric Acid

Product Overview

L(+)-Tartaric Acid (also written L tartaric acid, CAS 87-69-4) is the naturally occurring optically active form of tartaric acid (the 2R,3R or 2S,3S stereochemistry is commonly referenced — L(+)-tartaric is 2R,3R tartaric acid / 2S,3S tartaric acid depending on notation). It is found in grapes, berries and wine and is widely used for its sour taste, antioxidant properties and excellent chelating/buffering behaviour in food, beverage, pharmaceutical and technical applications.

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

Key Specifications

Melting Point	170-172 °C(lit.)
Alpha	12 º (c=20, H2O)
Boiling Point	191.59°C (rough estimate)
Bulk Density	1000kg/m3
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-)
Fp	210 °C
Storage Temp.	Store at +5°C to +30°C.
Solubility	H2O: soluble1M at 20°C, clear, colorless
PKA	2.98, 4.34(at 25℃)
Form	Solid
Color	White or colorless
PH	3.18(1 mM solution);2.55(10 mM solution);2.01(100 mM solution);
Odor	at 100.00 %. odorless
Odor Type	Odorless
Optical Rotation	[α]20/D +13.5±0.5°, c = 10% in H2O
Biological Source	Vitis vinifera
Water Solubility	1390 g/L (20 ºC)

Typical Applications & Benefits

Food & beverage: acidulant in soft drinks, confectionery, bakery products and wine processing (natural tartaric acid).
Pharmaceuticals: buffering agent, effervescent formulations and excipient for taste-masking.
Industrial & technical: chelating/sequestrant for metal finishing, ceramics, inks and textile processing.
Analytical & synthesis uses: reagent in stereochemical resolution and specialty synthesis.
Benefits: natural origin (from grapes), strong buffering and chelation, predictable pH control and widely accepted food/pharma history.

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).

It is also widely utilized in pharmaceutical industries. It is used in soft drinks, confectionaries, food products, gelatin desserts and as a buffering agent. It forms a compound, TiCl2(O-i-Pr)2 with Diels-Alder catalyst and acta as a chelate agent in metal industries. Owing to its efficient chelating property towards metal ions, it is used in farming and metal industries for complexing micronutrients and for cleaning metal surfaces, respectively.

Grades, Packaging & Supply

Grades available: food/food-grade, pharmaceutical/USP grade, technical/anhydrous powder.
Packaging: 25 kg bags, 500–1000 kg bulk bags; custom packaging for large orders.
Commercial notes: bulk & sample orders supported; competitive L tartaric acid price and flexible shipping.

Safety, Handling & Storage

Store in a cool, dry place in tightly closed containers. Avoid contact with strong bases and oxidizers. Handle dust with appropriate PPE and local exhaust ventilation.

Why choose Greenchem International?

Stable global supply chain and competitive bulk tartaric acid price.
Free sample policy and pre-shipment inspection accepted.

Ordering & Inquiry

To buy L(+)-Tartaric Acid (CAS 87-69-4) or request COA, sample and a competitive L tartaric acid price, please tell us required grade (food/pharma/anhydrous), quantity and delivery country. Our sales team will reply with lead time, price and documentation. Request a quote or sample now.