PURANOL D 210

Puranol D 210 is used in a wide range of PU elastomers, adhesives, and coatings.
Puranol D 210 is used in non-cellular polyurethane coatings.
Puranol D 210 is mainly used in the field of flexible foam blend system, elastomer, coatings, adhesives, etc.

CAS number: No verified CAS for the trade product is listed in public regulatory sources.
EC number: Not found in available public sources.
Molecular formula: Not available / not defined (because of mixture). 
Average molecular weight (Mw): ~ 1000 g/mol. 

SYNONYMS:
Puranol D-210, polyether polyol, polypropylene-oxide based polyol, di-functional polyol, polyurethane polyol, CASE polyol, propylene glycol starter polyol

Puranol D 210 is synthesized with propylene glycol, glycerin, and epoxide.
Puranol D 210 is a polyol.
Puranol D 210 is a polypropylene glycol with a molecular weight of 1000.

Because Puranol D 210 is not a single molecule, but a blend of polyether chains, it does not have a fixed molecular formula in the way small molecule chemicals do.
Its composition is best described functionally: Puranol D 210 is a di-functional (2 OH groups) polyether polyol made from propylene glycol and glycerin, extended by epoxide polymerization.

The hydroxyl number, together with its molecular weight, gives formulation chemists a good idea of how reactive Puranol D 210 will be with isocyanates in polyurethane production: enough –OH density to make strong bonds, but not excessively crosslinking.

Typical, published technical parameters for Puranol D 210 (these are supplier/technical values and describe the product specification you will see on a TDS): the hydroxyl value (OH number) is about 107–117 mg KOH/g, indicating moderate reactivity with isocyanates; viscosity is in the 100–200 mPa·s (cP) range at 25 °C, making it reasonably easy to pump and blend; functionality is ≈2 (primarily di-functional), and average molecular weight is typically reported around ~1000 g·mol⁻¹ for this grade.

Puranol D 210 is low in acid and metal impurities (low APHA/color, low water), which helps reduce side reactions and discoloration in polyurethane reactions.
These typical values make Puranol D 210 suited to elastomers, coatings, adhesives and other CASE uses where balanced reactivity, moderate molecular weight and manageable viscosity are required.

Performance-wise, Puranol D 210 contributes to finished PU materials by controlling chain length (molecular weight) and crosslink density (through functionality), which affects mechanical properties such as flexibility, tensile strength, elongation and chemical resistance.
Puranol D 210 (millennium diol) is a two-functional polyether polyol with a molecular weight of 1000.

Puranol D 210 is a product of the addition of propylene oxide to glycerol over a catalyst.
The end groups of Puranol D 210 contain secondary hydroxyl groups.
Puranol D 210 is a polypropylene glycol with a molecular weight of 1000.

Puranol D 210 (millennium diol) is a two-functional polyether polyol with a molecular weight of 1000.
Puranol D 210 is a product of the addition of propylene oxide to glycerol over a catalyst.
The end groups of Puranol D 210 contain secondary hydroxyl groups.

Puranol D 210 is a simple 2-functional polyether polyol with a molecular weight of 1000, is a product of the addition of propylene oxide to glycerol on a catalyst.
The end groups of Puranol D 210 contain secondary hydroxyl groups.

USES and APPLICATIONS of PURANOL D 210:
Puranol D 210 is used in a wide range of PU elastomers, adhesives, and coatings.
Puranol D 210 is used in non-cellular polyurethane coatings.
Puranol D210 is initiated with propylene glycol.

Puranol D 210 is synthesized with DMC catalyst.
Puranol D 210 has the advantages of strong reaction activity, low unsaturation, narrow molecular weight distribution and good molecular chain flexibility.

Puranol D 210 is mainly used in the field of flexible foam blend system, elastomer, coatings, adhesives, etc.
Puranol D 210 is a commercial polyether polyol in the Puranol family manufactured for polyurethane (PU) formulations used in coatings, adhesives, sealants and elastomers (CASE) and related non-cellular PU applications.

Chemically, Puranol D 210 is produced by the polymerization (ring-opening) of propylene oxide on low-molecular-weight glycol starter molecules (for example propylene glycol, glycerin or similar), resulting in a mixture of propylene-oxide-based polyether chains with a defined average chain-length distribution and reactive hydroxyl end groups.

Because Puranol D 210 is a technical/polymeric product (a blend of oligomers) rather than a single molecular species, it is described by typical properties (hydroxyl value, viscosity, average molecular weight, functionality) instead of a single molecular formula or single CAS/EC identifier.

Puranol D 210 is used in polyurethane elastomers, adhesives, coatings, waterproof coatings, chemical grouting materials, shoe soles, and non-cellular polyurethane applications such as coating, adhesives, sealants and elastomers.
Applications of Puranol D 210: Consumer Goods — Footwear, Adhesives & Sealants — Other Adhesives & Sealants Applications, Paints & Coatings — 

Other Paints & Coatings Applications.
In coatings and sealants, Puranol D 210 helps provide adhesion and hydrolytic stability because polyether backbones resist hydrolysis better than simple polyester polyols.

In elastomers and soles Puranol D 210 gives a good balance between hardness and elongation because of its di-functional nature and intermediate molecular weight.
Formulators choose Puranol D 210 when they need a mid-range polyol that provides good processability and balanced mechanical properties.

Puranol D 210 is used in a wide range of PU elastomers, adhesives, and coatings.
Puranol D 210 is designed for the production of polycarbonates, polysulfones, epoxy resins, varnishes, adhesives, and other products.

BEHAVIORAL / CHEMICAL CHARACTERISTICS of PURANOL D 210:
As a polyether polyol, Puranol D 210 contains reactive hydroxyl (–OH) groups, which make it useful in polyurethane chemistry by reacting with isocyanates.
Because it's a mixture (oligomeric), Puranol D 210 doesn't have a single molecular formula; rather, it's defined through its average properties (OH value, Mw, functionality).

Low water content of Puranol D 210 is important in PU systems because water can react with isocyanates and create CO₂ (foam) or other side reactions.
Low acid value means there’s minimal free acid, reducing the risk of side reactions or catalysis issues in PU formulations.

PHYSICOCHEMICAL CHARACTERISTICS of PURANOL D 210:
-Measured parameters 
Units of measurement Values Hydroxyl number mgKOH /g 107 – 117 Viscosity mPa•s/25 °C 100 – 200 
Acid number, max. mgKOH/g 0.05 
Water content, max. % 0.05 pH - 5.0-7.0 
Color, max. APHA 50 K+ ppm ≤ 5 

CHEMICAL COMPOSITION of PURANOL D 210:
*Starting / Raw Materials
Puranol D 210 is synthesized from propylene glycol, glycerin, and epoxide.
“Epoxide” here typically means propylene oxide (and possibly other oxides), because that’s how polyether polyols are generally made: ring-opening polymerization of epoxide on a polyol starter.

STRUCTURE of PURANOL D 210:
As a polyether polyol, Puranol D 210's backbone is made from ether linkages.
In practical terms, you can think of Puranol D 210 as a mixture of oligomer (short polymer) chains derived from those monomer building blocks (propylene oxide, glycerin, etc.).

Puranol D 210 has functionality ≈ 2, meaning on average each molecule has about two reactive OH (hydroxyl) end-groups.
Puranol D 210's average molecular weight is about 1,000 g/mol, per the supplier data.
The hydroxyl value (–OH content) is between 107–117 mg KOH/g, which matches a moderately reactive polyol for PU systems.

IMPURITIES AND OTHER COMPONENTS of PURANOL D 210:
Puranol D 210 specification includes very low water content (≤ 0.05%) which is critical for PU reactivity.
The acid value is also very low (max 0.05 mg KOH/g), indicating little residual acidity in the polyol mixture.
Potassium (K⁺) content is very low (≤ 3 ppm), per the technical sheet.

SAFETY AND HANDLING of PURANOL D 210: 
Safety and handling for Puranol D 210 are typical for neutral polyether polyols: 
Puranol D 210 is not a single classified hazardous substance by itself under most regulatory lists when handled as supplied, but normal industrial precautions apply.

Store Puranol D 210 sealed in a dry container to prevent moisture uptake (water reacts with isocyanates in downstream processing), keep away from strong oxidisers and extreme heat, and observe standard industrial hygiene (gloves, eye protection, local exhaust ventilation when spraying).

PHYSICAL and CHEMICAL PROPERTIES of PURANOL D 210:
CAS number: No verified CAS for the trade product is listed in public regulatory sources.
EC number: Not found in available public sources.
Molecular formula: Not available / not defined (because of mixture). 
Average molecular weight (Mw): ~ 1000 g/mol. 
Chemical type: polyether polyol 
Hydroxyl value (OH number): 107-117 mg KOH/g 
Functionality (nominal): ~ 2 
Average molecular weight (Mw): ~ 1,000 g/mol 

Viscosity (25 °C): ~ 100-200 mPa·s 
Acid value: ≤ 0.05 mg KOH/g 
Color: ≤ 50 APHA 
Water content: ≤ 0.05% w/w 
Potassium (K⁺) content: ≤ 3 ppm
Hydroxyl Number (mgKOH/g): 107–117
Viscosity at 25°C (mPa·s): 100–200
Mass Fraction of Water (%): no more than 0.05

pH: 5–7
Acid Number (mgKOH/g): no more than 0.05
Mass Fraction of Potassium Ions (ppm): no more than 5
Color (APHA): no more than 50
Average Molecular Weight (Mw): ~1000 g/mol
Molecular Formula: Not available / not defined (because of mixture)
CAS Number: No verified CAS for the trade product is listed in public regulatory sources
EC Number: Not found in available public sources

FIRST AID MEASURES of PURANOL D 210:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation: 
Fresh air.
*In case of skin contact: 
Take off immediately all contaminated clothing. 
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact: 
Rinse out with plenty of water. 
Call in ophthalmologist. 
Remove contact lenses.
*If swallowed:
After swallowing: 
Immediately make victim drink water (two glasses at most). 
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available

ACCIDENTAL RELEASE MEASURES of PURANOL D 210:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains. 
Collect, bind, and pump off spills. 
Observe possible material restrictions. 
Take up dry. 
Dispose of properly. 
Clean up affected area.

FIRE FIGHTING MEASURES of PURANOL D 210:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2) 
Foam 
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of PURANOL D 210:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection. 
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A 
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of PURANOL D 210:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed. 
Dry.

STABILITY and REACTIVITY of PURANOL D 210:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available