China Casein CAS 9000-71-9 Suppliers, Factory

Chemical Name: Casein  

CAS No.: 9000-71-9

Molecular Formula: C81H125N22O39P

Molecular Weight:2061.956961

Appearance:White or pale yellow powder

Sample:Free samples are available

Product Description

Product Introduction

Casein (also known as milk protein) is available in two main grades: food-grade (enzyme-coagulated) and industrial-grade (acid-coagulated). It features strong adhesion, high-gloss film-forming properties, and excellent emulsifying and thickening capabilities.

Food Grade: Widely used in meat products, frozen desserts, and nutritional meal replacements.

Industrial Grade: Extensively applied in paper coating, leather finishing, eco-friendly paints, woodworking adhesives, casein plastics, and textile sizing.

As a natural and biodegradable material, it is currently available in various specifications and ready for immediate supply.

Typical Properties

Item Specifications
Appearance White or pale yellow powder
Protein (Dry basis) 92.00% Min
Moisture 12.00 % Max
Acidity 50.00 Max
Fat 2.0% Max
Ash 2.00% Max
Viscosity 700 - 2000 mPa·s
Insolubility 0.50 ml/g Max
Coliforms Negative / 0.1g
Pathogenic bacteria Negative
Total plate count 30,000 /g Max

Product Advantages

Superior Adhesion

Made from natural milk protein, its bonding strength significantly outperforms ordinary starch glues and plant-based adhesives.

Tough & Glossy Film

Forms a bright, resilient film that is waterproof and abrasion-resistant, making it ideal for high-end coating and surface finishing.

Certifications & Flexible Options

Food-grade products hold full certifications for export globally. Industrial-grade options are available in multiple tiers for various cost needs.

Excellent Compatibility

Highly versatile formulation options, easily combining with borax, ammonia water, starch, and water-based resins.

Eco-friendly & Low VOC

Free from harsh or pungent odors and features low VOC emissions, serving as a perfect green alternative to traditional chemical adhesives.

Packaging & Storage

Package

25 kg / drum

Storage Condition

Cool, dry place away from direct sunlight & water

Frequently Asked Questions

Q1 What is Casein and what are its primary grades?

Casein is a natural protein derived from milk. It is primarily categorized into two grades: Food Grade (enzyme-coagulated) for nutritional products and food production, and Industrial Grade (acid-coagulated) for technical adhesive and coating applications.

Q2 What are the main applications for Industrial Grade Casein?

Industrial grade Casein is widely utilized in paper coatings, leather surface finishing, eco-friendly paints, woodworking glues, casein plastic manufacturing, and textile sizing due to its high adhesive strength and glossy film formation.

Q3 What is the minimum protein content in this product?

Our Casein features a minimum protein content of 92.00% on a dry basis, ensuring high purity and superior functional capabilities in formulations.

Q4 How is Casein packaged for delivery?

The product standard packaging is 25 kg per drum, designed to protect the powder from moisture contamination during handling and transport.

Q5 What are the proper storage recommendations?

Casein powder should be stored in a cool, dry area, kept away from direct sunlight and water to preserve its shelf life, viscosity, and chemical stability.

Q6 Is Casein an eco-friendly material?

Yes, Casein is a natural, biodegradable material with low VOC emissions and no harsh odors, serving as a green, sustainable alternative to synthetic chemical adhesives.

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