Description

Gall is a natural, complex mixture of plant-derived tannins and polyphenolic compounds, widely recognized for its astringent and antioxidant properties. This versatile botanical extract is crucial for industries requiring natural tanning agents, pharmaceutical excipients, or food-grade additives. Key sectors that utilize Gall include the leather tanning, pharmaceutical, nutraceutical, and specialty chemical manufacturing industries.

Application

• Leather Tanning: Serves as a primary vegetable tanning agent, converting animal hides into durable leather.
• Pharmaceuticals: Used as an astringent in topical preparations and as a stabilizing excipient in various formulations.
• Ink Manufacturing: A traditional component in the production of iron gall ink, valued for its permanence.
• Food & Beverage: Employed as a clarifying agent in brewing and winemaking and as a natural preservative.
• Dyeing & Textiles: Acts as a natural mordant to fix dyes onto fabrics, particularly with natural fibers.
• Nutraceuticals: Incorporated into dietary supplements for its high antioxidant content and potential health benefits.
• Chemical Intermediate: A source of gallic acid and tannic acid for further chemical synthesis.
• Cosmetics: Used in skincare products for its astringent and pore-refining properties.

Basic Information

Product Name	Gall
CAS No.	8008-63-7
Molecular Formula	Complex Mixture
Molecular Weight	N/A (Mixture)
Synonyms	Nutgall; Aleppo Gall; Oak Gall; Gallnut; Galla; Gallae; Chinese Gall; Tamarisk Gall; Gall Apple; Mazu; Quercus Infectoria Gall
EINECS	232-394-0

Quality Control

Our Gall is produced and tested under a rigorous quality management system. We offer various grades, including Technical, Food (FCC), and USP/Pharmaceutical grades, to meet diverse industry requirements. Each batch is analyzed for key parameters such as tannin content, loss on drying, and heavy metals. A comprehensive Certificate of Analysis (COA) is provided with every shipment to ensure full traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent caking and degradation from atmospheric moisture.

Specification

Item	Specification
Description	Light brown to yellowish-brown powder or fragments
Identification (IR)	Conforms to standard
Assay (Tannins)	Min. 50% (Typical 60-70%)
Loss on Drying	Max. 12.0%
Total Ash	Max. 8.0%
Acid-Insoluble Ash	Max. 1.0%
Heavy Metals (as Pb)	Max. 20 ppm
Microbiological Analysis	As per grade requirement (EP/USP)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.