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MPEG-1000
Jienuo
Product Advantage
Stable Chemical & Physical Properties
MPEG-1000 shows high stability against pressure and heat (tested to maintain performance under 80°C/0.5MPa for 72h), with a neutral pH (5.0–7.0 in 1% aqueous solution) that avoids corrosion to production equipment, reducing maintenance costs for manufacturers.
Strong Compatibility & Surface Activity
As a nonionic surfactant, it is compatible with most organic/inorganic materials. Its low hydroxyl value (51–61 mgKOH/g) ensures strong emulsifying/dispersing capabilities, effectively lowering interfacial tension by 30–40% in formulations.
Low Toxicity & Compliance
With strict quality control (industrial-grade standard), MPEG-1000 has low toxicity (passed skin irritation tests in cosmetic applications), meeting global safety regulations for pharmaceutical, cosmetic, and textile industries.
Cost-Effective Packaging & Storage
Supplied in 200kg/drum packaging (or 200g/25kg plastic bags for small orders), it can be stored for 2 years in dry, ventilated areas—no special storage conditions required, cutting logistics and inventory costs.
Technical Specifications
Technical Parameter | Specification |
|---|---|
Chemical Name | Polyethylene Glycol Monomethyl Ether MPEG-1000 |
CAS No. | 9004-74-4 |
Chemical Structure | CH₃O(CH₂CH₂O)ₙH (n≈22) |
Product Type | Non-ionic Polyether |
Appearance (25°C) | White waxy paste/soft solid, no impurities |
Avg. Molecular Weight | 950-1050 g/mol (Typical: 1000) |
Purity | ≥99.0% (GC) |
pH (1% Aqueous, 25°C) | 5.0-7.0 |
Hydroxyl Value | 51~62mgKOH/g |
Water Content | ≤0.1 wt% |
Ash Content | ≤0.1 wt% |
Viscosity (40°C) | 800-1200 mPa·s |
Density (25°C) | 1.06-1.08 g/cm³ |
Solubility | Miscible with water/ethanol; insoluble in non-polar solvents |
Melting Point | 38-42°C |
Thermal Stability | Stable ≤120°C; decomposes ≥300°C |
Flash Point (Closed-Cup) | ≥200°C |
Compliance | FDA 21 CFR §172.820, EU REACH |
Product Uses
Polymer Modification
It reacts with acrylic acid/methacrylic acid to synthesize MPEG methacrylate, a key monomer for producing polycarboxylate superplasticizers (critical for high-performance concrete, improving fluidity and strength retention).
Personal Care & Pharmaceutical Industries
In cosmetics and pharmaceuticals, MPEG-1000 acts as a softener and humectant for skin/hair care products (e.g., lotions, creams), enhancing moisture retention and skin-friendly properties.
Industrial Additives
It functions as an emulsifier/dispersant in coatings, adhesives, and inks, improving product stability and uniformity; also used as a lubricant additive to reduce friction in mechanical systems.
For general applications: Dissolve MPEG-1000 in water/ethanol (ratio 1:5–1:10) under stirring (200–300 rpm) at 25–40°C until fully dispersed, then add to the target formulation. Adjust dosage (typically 0.5–5% of total formulation) based on specific product requirements. Avoid direct contact with strong acids/bases.
FAQ
What is the shelf life of MPEG-1000?
It has a 2-year shelf life when stored in dry, ventilated areas (avoiding moisture and direct sunlight). Unsealed products should be used within 3 months to prevent moisture absorption.
Is MPEG-1000 safe for cosmetic use?
Yes, it is low-toxic and has passed skin irritation tests, complying with cosmetic safety standards. It is commonly used as a humectant in skin care products.
Can MPEG-1000 be used in high-temperature processes?
Yes, it is heat-resistant (stable below 80°C) and maintains performance in most industrial high-temperature mixing or reaction processes.
