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Castor Oil FSG – Full Manufacturing to Applications Guide | Nova Industries

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Castor Oil FSG – Full Manufacturing to Applications Guide | Nova Industries

Castor Oil FSG (First Special Grade) is the most widely used industrial-grade castor oil, known for its high purity, consistent viscosity, and excellent hydroxyl value. It serves as a core raw material for lubricants, polymers, coatings, cosmetics, pharmaceuticals, and specialty chemical industries.

1. Manufacturing Process of Castor Oil FSG

A. Raw Material Selection

  • High-quality mature castor seeds sourced from reliable farmers.

  • Seeds are cleaned, graded, and tested for:

    • Moisture content

    • Oil percentage

    • Impurities

    • Free fatty acid level

B. Mechanical Pressing

  • Castor seeds undergo cold pressing or double pressing using expeller technology.

  • The first-press oil is collected and filtered to remove impurities.

C. Filtration & Degumming

  • Oil is filtered using plate filters / pressure leaf filters.

  • Degumming removes:

    • Phospholipids

    • Waxes

    • Gums

    • Suspended particles

D. Settling & Neutralization

  • Oil is stored in settling tanks to separate undissolved residues.

  • If required, mild alkali treatment is done to neutralize free fatty acids.

E. Polishing & Final Filtration

  • Multi-stage polishing ensures:

    • High clarity

    • Uniform viscosity

    • Stable color index

F. Quality Testing

Nova Industries follows strict QC parameters:

  • Acid value

  • Iodine value

  • Hydroxyl value

  • Moisture content

  • Color on Lovibond scale

G. Packaging

  • FSG grade is filled in:

    • 200–250 kg MS drums

    • 1000 kg IBC tanks

    • ISO tank containers (bulk export)

2. Applications & Industries Using Castor Oil FSG

A. Major Industries

  • Lubricants & greases

  • Polyurethane industry

  • Polymer & plasticizer industry

  • Coatings & paints

  • Adhesive & sealants

  • Textile chemicals

  • Cosmetics & personal care

  • Pharmaceutical intermediates

  • Soap & surfactant manufacturing

  • Agriculture & crop protection chemicals

B. End-Use Applications

  • High-performance synthetic lubricants

  • Polyurethane foams & elastomers

  • Hot-melt adhesives

  • Alkyd resins

  • Printing inks

  • Perfumed cosmetics

  • Hair & skincare formulations

  • Mold release agents

  • Rubber processing additives

  • Metalworking fluids

  • Textile finishing oils

  • Defoamers

3. Benefits of Castor Oil FSG

Performance Benefits

  • Excellent lubricity even at high temperatures

  • High viscosity stability

  • Superior hydroxyl content enabling chemical modifications

  • Non-drying oil with strong film-forming ability

Commercial Benefits

  • Versatile raw material for multiple value-added chemicals

  • Competitive production cost

  • Long shelf life

Technical Benefits

  • Naturally rich in ricinoleic acid (≈ 90%)

  • Provides strong base for esterification, hydrogenation & polymerization

  • Low impurity levels ensure consistent performance in formulations

4. Technical & Premium Quality Details

Premium-quality Castor Oil FSG is defined by:

  • Moisture content: < 0.25%

  • Acid value: Within standard industry limits

  • Saponification value: 177–185

  • Iodine value: 82–90

  • Hydroxyl value: 160–168

  • Refractive index: 1.475–1.485

  • Specific gravity: 0.952–0.964

  • Color: Pale yellow to golden

Strict adherence to these parameters ensures:

  • Better stability

  • Uniform production results

  • High-temperature resistance

5. Key Specifications & Features

Physical Characteristics

  • Appearance: Clear, viscous, pale-yellow liquid

  • Odor: Mild, characteristic fatty odor

  • Solubility: Insoluble in water, soluble in alcohol & organic solvents

Chemical Characteristics

  • Ricinoleic acid content: 85–90%

  • Hydroxyl group-rich fatty acid

  • Non-toxic, biodegradable, high purity

Available Forms

  • Standard FSG

  • Extra-light color FSG

  • High purity FSG for cosmetics & pharmaceuticals

6. Why Choose Nova Industries for Castor Oil FSG

Nova Industries is a leading manufacturer and exporter of Castor Oil FSG from Gujarat, India, known globally for:

A. Manufacturing Excellence

  • Advanced expeller pressing units

  • Automated filtration & degumming

  • State-of-the-art refining setups

B. Quality Control Systems

  • Tested at each stage: seed → pressing → filtration → packing

  • In-house advanced lab with:

    • GC testing

    • HPLC

    • Moisture analyzers

    • Lovibond tintometer

C. Certifications & Compliance

  • ISO-certified production

  • REACH-compliant export

  • GMO-free, allergen-free, sustainable sourcing

D. Global Customer Trust

  • Supplies to USA, Europe, Latin America, Middle East, and Asia

  • Consistent, high-quality shipments

  • Transparent documentation

E. Ethical & Sustainable Operations

  • Farmer partnerships

  • Fair sourcing

  • Zero-waste processing

7. Environmental & Sustainability Points

Castor Oil FSG is naturally sustainable due to:

  • 100% renewable agricultural source

  • Non-food crop, grown on semi-arid land

  • Excellent biodegradability

  • Very low carbon footprint

  • Supports green chemistry

  • No deforestation, minimal water usage

  • Chemical-free cultivation in many regions

Compared to petroleum-based oils, FSG-grade castor oil reduces environmental impact significantly.

8. High-Performance Characteristics

  • Thermal stability up to high temperatures

  • Excellent resistance to oxidation

  • Strong viscosity retention

  • Chemical reactivity suitable for:

    • Polyols

    • Esters

    • Derivatives

  • Superior film formation in coatings

  • High lubricity in metal-processing industries

9. Additional Value-Added Information

A. Packaging Options

  • MS drums (200–250 kg)

  • HDPE drums

  • IBC tanks (1000 liters)

  • ISO tanks for bulk export

B. Storage Guidelines

  • Store in cool, dry place away from sunlight

  • Maintain sealed containers

  • Avoid moisture exposure

  • Recommended storage temperature: 20–30°C

C. Shelf Life

  • 24 months under ideal storage conditions

D. Safety & Handling

  • Non-toxic and safe to handle

  • Use gloves and avoid direct eye contact

  • Follow standard industrial hygiene practices

E. Export Advantages

  • India is the world’s largest producer & exporter of castor oil

  • Excellent global demand in:

    • USA

    • Europe

    • Japan

    • South Korea

    • Brazil

    • China

  • Competitive freight from Mundra port

F. Global Market Demand

  • Increasing demand for bio-based materials

  • Rising use in cosmetics and polyurethane chemicals

  • Growing acceptance in high-performance lubricants

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