Product: Glucono-Delta-Lactone (GDL)
Grades: Industrial Grade & Food Grade

1. Product Identification

• Chemical Name: Glucono-1,5-lactone (Glucono-Delta-Lactone, GDL)

• Synonyms: 1,5-Gluconolactone, D-Glucono-1,5-lactone

• Molecular Formula: C?H??O?

• Molecular Weight: 178.14 g/mol

• CAS Number: 90-80-2

• EINECS Number: 202-016-5

• Appearance: White crystalline powder

• Odor: Odorless

• Taste: Slightly sweet, neutral

2. Chemical & Physical Properties

3. Applications

Food Grade

• Slow acidifier in tofu, dairy products, baked goods, and beverages

• Leavening agent in bakery formulations

• pH regulator and curing agent for processed meats

• Sequestrant and preservative in food formulations

• Used in cosmetics as a mild acidulant

Industrial Grade

• Used in electroplating and metal treatment

• Cement and concrete admixtures (as a retarder)

• Cleaning and descaling formulations

• pH adjustment in industrial processes

• Intermediate for chemical synthesis

4. Regulatory Status

• Food Grade:

• FCC / E575 compliant

• GRAS (Generally Recognized as Safe) by FDA

• Complies with EU regulations for food additives

• Industrial Grade:

• Not intended for direct human consumption

• For technical applications only

5. Handling & Storage

• Shelf Life: 24 months under recommended conditions

• Storage:

• Keep in tightly closed packaging

• Store in a cool, dry, well-ventilated area

• Avoid exposure to moisture and high temperatures

• Handling:

• Avoid inhalation of dust

• Use appropriate personal protective equipment (PPE)

• Hygroscopic: reseal container after use

6. Packaging

• Food Grade:

• 25 kg net weight bags (multi-layer paper or PE-lined)

• 1,000 kg bulk bags available on request

• Industrial Grade:

• 25 kg PP/PE woven bags

• Bulk packaging available on request

7. Safety Information

• Hazard Classification: Not classified as hazardous under GHS

• First Aid Measures:

• Inhalation: Move to fresh air, seek medical attention if symptoms persist

• Skin Contact: Wash with water and soap

• Eye Contact: Rinse immediately with plenty of water, seek medical advice if irritation persists

• Ingestion: Rinse mouth with water, drink water to dilute, seek medical advice if large quantities are consumed

• Spillage & Disposal:

• Sweep up and collect in a suitable container

• Dispose of in accordance with local regulations

8. Typical Quality Standards

Food Grade (FCC/E575)

• Assay: ≥ 99.0%

• Heavy Metals (Pb): ≤ 5 ppm

• Arsenic: ≤ 2 ppm

• Reducing Substances: Passes test

• Loss on Drying: ≤ 0.5%

Industrial Grade

• Assay: ≥ 98.0%

• Heavy Metals (Pb): ≤ 20 ppm

• Arsenic: ≤ 10 ppm

• Loss on Drying: ≤ 1.0%