Neopentyl Glycol, Dimethyl Propane Diol, 504-63-2

Neopentyl Glycol, Dimethyl Propane Diol, 504-63-2

NEOPENTYL GLYCOL (NPG) 
Chemical Name: Neopentyl Glycol / 2,2-Dimethyl-1,3-propane diol
CAS Number: 504-63-2
EC Number: [Not specified]

1. PRODUCT DESCRIPTION AND CHEMICAL IDENTITY
Parameter Description
Chemical Name (IUPAC) 2,2-Dimethyl-1,3-propane diol
Other Names Neopentyl Glycol, NPG, 2,2-Dimethyl-1,3-propanediol
CAS Number 504-63-2
EC Number (EINECS) [Not specified]
Molecular Formula C₅H₁₂O₂
Molecular Weight 104.15 g/mol
Chemical Class Diol (glycol), polyol
Appearance White crystalline solid
Odor [Not specified]
Taste [Not specified]

CHEMICAL STRUCTURE AND DESCRIPTION:

Neopentyl Glycol is a white crystalline diol with high chemical stability and low volatility. It is widely used as a building block in the production of resins, coatings, and plasticizers due to its resistance to oxidation and hydrolysis. Its two hydroxyl groups allow it to function as a functional monomer in polymerization reactions.

Structural Formula (Open Structure):
CH₃
|
HO-CH₂-C-CH₂-OH
|
CH₃
(2,2-dimethyl-1,3-propanediol structure; central carbon atom bonded to two methyl groups and two hydroxymethyl groups)

3D (Stereochemistry) Representation:
Neopentyl Glycol is a symmetrical molecule and does not contain chirality. Since the central carbon atom does not contain four different groups, it is not optically active.

Importance of Structure:

Its symmetrical and branched structure gives its derivatives high thermal stability and hydrolytic resistance.

Two primary hydroxyl groups show high reactivity in esterification and etherification reactions.

Its branched structure gives polymer chains rigidity and chemical resistance.

Neopentyl Glycol is an important building block in industrial chemistry. Due to its high chemical stability and low volatility, it is preferred in applications requiring durability and weather resistance. It is widely used in the resin, coating, plastics, lubricant, and adhesive industries.

2. PHYSICAL AND CHEMICAL PROPERTIES
Property Value
Molecular Formula C₅H₁₂O₂
Molecular Weight 104.15 g/mol
Appearance White crystalline solid
Odor [Not specified]
Taste [Not specified]
Melting Point 124-128 °C
Boiling Point 210-215 °C (at 760 mmHg)
Solubility Soluble in water and alcohols
Flash Point > 130 °C
Stability Stable under recommended storage conditions

Neopentyl Glycol is a white crystalline solid melting between 124-128 °C. It boils at 210-215 °C (760 mmHg). It is soluble in water and alcohols. Its flash point is above 130 °C, making it a relatively safe material. It is stable under recommended storage conditions.

3. SOLUBILITY PROFILE
Solvent Solubility Conditions
Water Soluble -
Alcohols Soluble -
[Other solvents] [Not specified] -

Neopentyl Glycol is soluble in water and alcohols. Specific data on its solubility in other solvents is not available.

4. CHEMICAL PROPERTIES AND REACTIONS
Property Description
Chemical Class Diol (glycol), polyol
Unique Structure Branched, symmetrical structure; contains two primary hydroxyl groups
Acid-Base Properties [Not specified]
Oxidation Resistance High oxidation resistance
Hydrolysis Resistance High hydrolytic resistance
Complex Formation [Not specified]
Thermal Decomposition [Not specified]

Neopentyl Glycol has high chemical stability. It is resistant to oxidation and hydrolysis. It contains two primary hydroxyl groups, making it a suitable monomer for esterification and etherification reactions. Its branched structure gives its derivatives thermal stability and chemical resistance.

5. SPECIFICATIONS
Parameter Specification
Purity [Not specified]
Appearance White crystalline solid
Melting Point 124-128 °C
Boiling Point 210-215 °C (760 mmHg)
Flash Point > 130 °C
Solubility Soluble in water and alcohols

Neopentyl Glycol is supplied in white crystalline solid form. Melting point is 124-128 °C, boiling point is 210-215 °C (760 mmHg), and flash point is above 130 °C. It is soluble in water and alcohols.

6. APPLICATIONS AND INDUSTRIAL USES
6.1. Resins
Application Description
Polyester Used in polyester resins for durability and weather resistance.
Alkyd Used as a performance enhancer in alkyd resins.
Powder Coatings Provides durability and weather resistance in powder coatings.

Neopentyl Glycol is used as a building block in the production of resins for polyester, alkyd, and powder coatings. It provides durability and weather resistance.

6.2. Plastics
Application Description
Polymer Formulations Improves flexibility and thermal stability in polymer formulations.

Neopentyl Glycol is used to improve flexibility and thermal stability in polymer formulations.

6.3. Lubricants
Application Description
Synthetic Lubricants Used as an intermediate in synthetic lubricants.
Hydraulic Fluids Used in hydraulic fluids.

Neopentyl Glycol is used as an intermediate in synthetic lubricants and hydraulic fluids.

6.4. Construction Chemicals
Application Description
Adhesives Used as a performance enhancer in adhesives.
Sealants Used as a performance enhancer in sealants.

Neopentyl Glycol is used to improve performance in adhesives and sealants.

6.5. Automotive
Application Description
Automotive Coatings Enhances scratch and chemical resistance in automotive coatings.

Neopentyl Glycol is used to enhance scratch and chemical resistance in automotive coatings.

7. BIOLOGICAL AND STRUCTURAL PROPERTIES
Property Description
Essentiality [Not specified]
Synthesis [Not specified]
Unique Structure Branched, symmetrical diol structure
Primary Function Building block in resin, coating, plastic, and lubricant production
Physiological Role [Not specified]

Neopentyl Glycol has a branched and symmetrical diol structure. It contains two primary hydroxyl groups. It is used as a building block in resin, coating, plastic, and lubricant production.

8. SAFETY AND TOXICOLOGY
Parameter Value
GHS Classification Not classified as hazardous
Hazards May cause mild irritation to eyes and skin
Precautions Avoid inhalation of dust. Wash thoroughly after handling.
First Aid (Eyes) Rinse immediately with plenty of water.
First Aid (Skin) Wash with soap and water.
First Aid (Inhalation) Move to fresh air.
First Aid (Ingestion) Seek medical attention.

Neopentyl Glycol is not classified as hazardous under GHS. It may cause mild irritation to eyes and skin. Avoid inhalation of dust and wash thoroughly after handling. First aid measures are standard.

9. TRANSPORT INFORMATION
Parameter Information
UN Number Not applicable (not a hazardous material)
Hazard Class Not a hazardous material
Packing Group Not applicable
Proper Shipping Name Neopentyl Glycol
Marine Pollutant [Not specified]
ADR/RID Label Not applicable

Neopentyl Glycol is not classified as a hazardous material. There are no special restrictions for its transport.

10. REGULATORY INFORMATION
Region Status
EU REACH registered
Turkey (KKDIK) [Not specified]
USA (TSCA) [Not specified]
Pharmacopoeia Compliance [Not specified]
FDA Compliance [Not specified]

Neopentyl Glycol is registered under REACH. It is not classified as hazardous under GHS. It is not a hazardous material for transport.

11. STORAGE AND HANDLING
Parameter Information
Storage Conditions Store in a cool, dry, and well-ventilated area.
Container Requirements Keep container tightly closed to avoid moisture absorption.
Materials to Avoid Direct sunlight and temperatures above 40 °C.
Shelf Life [Not specified]
Hygroscopicity [Not specified]
Handling Notes Use appropriate personal protective equipment (gloves, goggles, mask).
Packaging Options 25 kg bags or 500 kg jumbo bags. Custom packaging upon request.

Neopentyl Glycol should be stored in a cool, dry, and well-ventilated area. Keep container tightly closed to avoid moisture absorption. Avoid direct sunlight and temperatures above 40 °C. Use appropriate personal protective equipment (gloves, goggles, mask).

Handling Notes:

Avoid inhalation of dust.

Wash thoroughly after handling.

Use appropriate personal protective equipment.

12. FIRE FIGHTING MEASURES
Parameter Information
Fire Hazard [Not specified]
Extinguishing Media [Not specified]
Special Hazards [Not specified]
Protective Equipment [Not specified]

Specific data on fire fighting measures for Neopentyl Glycol is not available. Its flash point is above 130 °C.

13. ACCIDENTAL RELEASE MEASURES
Parameter Information
Personal Protection Wear appropriate PPE (gloves, goggles, mask).
Ventilation Increase ventilation.
Control [Not specified]
Cleaning Methods [Not specified]
Environmental Precautions [Not specified]
Waste Disposal [Not specified]

In case of a spill of Neopentyl Glycol, appropriate personal protective equipment should be worn. Ventilation should be increased. Specific data on other measures is not available.

14. FIRST AID MEASURES
Exposure Route Action
Inhalation Move person to fresh air.
Skin Contact Wash with soap and water.
Eye Contact Rinse immediately with plenty of water.
Ingestion Seek medical attention.

Standard first aid measures apply for Neopentyl Glycol exposure. If inhaled, move to fresh air. If on skin, wash with soap and water. If in eyes, rinse immediately with plenty of water. If swallowed, seek medical attention.

15. RAW MATERIALS AND DERIVATIVES
15.1. Raw Materials (Upstream)
Raw Material Description
[Not specified] [Not specified]

15.2. Derivatives (Downstream)
Derivative Application
Polyester Resins Coatings, plastics
Alkyd Resins Coatings
Powder Coatings Surface coatings
Synthetic Lubricants Lubricants, hydraulic fluids
Adhesives and Sealants Construction chemicals

16. INDUSTRY SUITABILITY AND USAGE LEVELS
Industry Application Area Example Use Suitability
Resins Polyester, alkyd, powder coatings Durable coatings High
Plastics Polymer formulations Flexible and thermally stable plastics High
Lubricants Synthetic lubricants, hydraulic fluids High-performance lubricants High
Construction Chemicals Adhesives, sealants Performance enhancer Suitable
Automotive Automotive coatings Scratch and chemical resistance High

17. SUMMARY AND IMPORTANT PRECAUTIONS
SUMMARY:

Neopentyl Glycol (C₅H₁₂O₂, CAS 504-63-2) is a white crystalline diol with high chemical stability and low volatility. Due to its resistance to oxidation and hydrolysis, it is widely used as a building block in the production of resins, coatings, and plasticizers. It is also known as 2,2-Dimethyl-1,3-propane diol. Melting point is 124-128 °C, boiling point is 210-215 °C (760 mmHg), and flash point is above 130 °C. It is soluble in water and alcohols.

Main applications include resins for polyester, alkyd, and powder coatings; flexibility and thermal stability enhancer in polymer formulations; synthetic lubricants and hydraulic fluids; adhesives and sealants; and scratch and chemical resistance enhancer in automotive coatings. It is not classified as hazardous under GHS. It may cause mild irritation to eyes and skin. Avoid inhalation of dust and wash thoroughly after handling. Store in a cool, dry, and well-ventilated area below 40 °C. Keep container tightly closed to avoid moisture absorption. Packaging options include 25 kg bags or 500 kg jumbo bags. REACH registered and not classified as hazardous.

Key Properties:

Property Value
Appearance White crystalline solid
Chemical Formula C₅H₁₂O₂
Molecular Weight 104.15 g/mol
CAS Number 504-63-2
Melting Point 124-128 °C
Boiling Point 210-215 °C (760 mmHg)
Flash Point > 130 °C
Solubility Soluble in water and alcohols
Chemical Class Diol (glycol), polyol
Primary Use Resin, coating, plastic, lubricant production

Main Applications:

Industry Applications
Resins Polyester, alkyd, powder coatings
Plastics Polymer formulations, flexibility and thermal stability
Lubricants Synthetic lubricants, hydraulic fluids
Construction Chemicals Adhesives, sealants
Automotive Automotive coatings, scratch and chemical resistance

Key Safety Points:

NOT A HAZARDOUS MATERIAL: Not classified under GHS

MILD IRRITANT: May cause mild irritation to eyes and skin

PRECAUTIONS: Avoid inhalation of dust; wash thoroughly after handling

STORAGE: Cool, dry, well-ventilated; below 40 °C

PPE RECOMMENDED: Gloves, goggles, mask

PACKAGING: 25 kg bags or 500 kg jumbo bags

CRITICAL PRECAUTIONS:

Neopentyl Glycol is a white crystalline diol with high chemical stability and low volatility.

Due to its resistance to oxidation and hydrolysis, it is used as a building block in the production of resins, coatings, and plasticizers.

Melting point is 124-128 °C, boiling point is 210-215 °C (760 mmHg), and flash point is above 130 °C.

It is soluble in water and alcohols.

It provides durability and weather resistance in resins for polyester, alkyd, and powder coatings.

It improves flexibility and thermal stability in polymer formulations.

It is used as an intermediate in synthetic lubricants and hydraulic fluids.

It improves performance in adhesives and sealants.

It enhances scratch and chemical resistance in automotive coatings.

It is not classified as hazardous under GHS.

It may cause mild irritation to eyes and skin; avoid inhalation of dust and wash thoroughly after handling.

Store in a cool, dry, and well-ventilated area below 40 °C; keep container tightly closed to avoid moisture absorption.

REACH registered; not a hazardous material.

Packaging options include 25 kg bags or 500 kg jumbo bags; custom packaging available upon request.

Important Statement: This Technical Data Sheet (TDS) is for informational purposes only. The information provided is based on available data and is believed to be accurate. However, the user is solely responsible for determining the suitability of the product for their own specific applications and for complying with all applicable regulations and safety requirements. Always refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier for complete safety, handling, storage, and regulatory compliance information. Users are obligated to test the product in their own processes and applications. All local, national, and international regulations must be followed when working with Neopentyl Glycol.