Organic Acids REACH

DL-tartaric acid

CAS Number

133-37-9

EC Number

205-105-7

FEMA Number

FEMA 3044

Industries: Pharma & Healthcare Personal Care & Cosmetics Plastics & Polymers

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What is DL-tartaric acid?

DL-tartaric acid (CAS 133-37-9) is the racemic form of tartaric acid, produced synthetically rather than derived from wine byproducts.

Where is DL-tartaric acid used?

Food and beverage: acidulant in confectionery, baked goods and soft drinks with a clean, tart flavour
Pharmaceutical: buffering agent in effervescent tablets and oral solutions
Personal care: pH adjuster in creams, serums and hair treatments
It also acts as a chelating agent where metal ion control prevents oxidative degradation.

Good to know: Controlled pH affects active ingredient stability and dissolution rate in pharmaceutical applications.

Commercial specifications

Pharmaceutical-grade material conforming to USP and Ph. Eur. monographs

Other Names (Synonyms)

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What are the physical properties of DL-tartaric acid?

Melting Point 206 °C

Boiling Point 191.59°C (rough estimate)

Density 1.79 g/cm³

Flash Point 210 °C

Appearance white crystalline powder

Color White

Odor at 100.00 %. very mild caramellic

Form Liquid

Water Solubility soluble

Vapor Pressure <0.1 hPa (20 °C)

Refractive Index 1.5860 (estimate)

pH 1.6 (100g/l, H2O, 25℃)

Log P -1.43

How is DL-tartaric acid classified and handled safely? Learn More

Danger

GHS05· Corrosive GHS07· Irritant

Hazard Statements

H315 Causes skin irritation

H318 Causes serious eye damage

H319 Causes serious eye irritation

H335 May cause respiratory irritation

Precautionary Statements

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P264 Wash … thoroughly after handling.

P271 Use only outdoors or in a well-ventilated area.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

Which trade and regulatory codes apply to DL-tartaric acid?

HS Code 29181200

Storage Class 11 - Combustible Solids

WGK (Germany) 3