Introduction of Methylhydroxypropyl
Product form:White to off-white powder
Hydroxypropyl Content: 9-12%
Methoxyl Content: 18-24%
Viscosity: 300-200,000 mPa.s
CAS No.: 9004-65-3
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Tel: +86-155 2251 6763
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Methylhydroxypropyl cellulose is the same polymer as hydroxypropyl methylcellulose — the material most buyers know as HPMC. The two names simply list the substituent groups in different orders. Hydroxypropyl methylcellulose names the hydroxypropyl group first; methylhydroxypropyl cellulose names the methyl group first. Both describe one nonionic cellulose ether whose backbone carries methoxyl groups (19–30%) and hydroxypropyl groups (4–12%).
Because the name appears in several orders across data sheets and national naming conventions, buyers sometimes worry they are looking at two different products. They are not. When a specification sheet says methylhydroxypropyl cellulose, you can read it as HPMC and expect the same chemistry: a white or off-white powder, viscosity from 300 to 200,000 mPa·s, water retention of 90% or more, pH 6.0–7.0 and reversible gelation at 65–75°C.
Every batch of methylhydroxypropyl cellulose (HPMC) is produced to the same specification and verified in the laboratory before release. A certificate of analysis accompanies each shipment.
| Parameter | Specification |
|---|---|
| Appearance | White or off-white powder |
| Viscosity | 300–200,000 mPa·s |
| Methoxyl content | 19–30% |
| Hydroxypropyl content | 4–12% |
| Bulk density | 350–450 kg/m³ |
| pH value | 6.0–7.0 |
| Water retention rate | ≥90% |
| Gelation temperature | 65–75°C |
Whichever word order appears on the document, the polymer behind it works the same way in the same places.
On construction data sheets the name methylhydroxypropyl cellulose appears in exactly the role you would expect from HPMC: holding water in the fresh mortar so cement hydrates fully, and giving the wet mix the body, open time and slump resistance installers rely on. Check the COA for viscosity and water retention (≥90%) rather than the name order.
Paint and putty formulators source the same polymer under either name to thicken the liquid phase, suspend pigments and control drying. Because it is nonionic, it tolerates the latex and surfactant load of a coating, and its 300–200,000 mPa·s range covers everything from spray paints to thick texture coats.
The alternate name shows up most often on certificates of analysis, customs declarations and translations where regional naming conventions reorder the substituents. When your paperwork says methylhydroxypropyl cellulose and your order says HPMC, the two match — and the batch COA confirms it with the same methoxyl and hydroxypropyl values.
Every grade we supply is shipped in one dependable export format: a standard 25 kg bag with consistent net weight on every unit.
One supplier, one standard — whatever name order your paperwork uses. These are the reasons formulators keep reordering.
Every production batch is tested in our own laboratory before release — viscosity, methoxyl and hydroxypropyl content, pH, water retention rate and gelation temperature are verified against the specification sheet, and a certificate of analysis (COA) is issued for each shipment. Our chemists also help you match the right grade to your formulation and target viscosity.
Beyond the standard 25 kg bag, we offer flexible packaging customization — private-label and OEM bags printed with your brand, custom labelling for local markets, and packing formats arranged to your warehouse or project requirements. Share your specification with the order and we will confirm the details before production.
Yes. Methylhydroxypropyl cellulose and hydroxypropyl methylcellulose (HPMC) name the same nonionic cellulose ether with the substituent groups listed in different orders. Both refer to a polymer with methoxyl content of 19–30% and hydroxypropyl content of 4–12%.
Regional and national naming conventions list the substituent groups in different orders. Some standards lead with the methyl group, others with the hydroxypropyl group. The chemistry is identical; when in doubt, compare the methoxyl and hydroxypropyl percentages on the COA rather than the word order.
Exactly what HPMC does: it holds mixing water in the fresh mortar (retention ≥90%) so cement hydrates fully, thickens the wet mix to a workable, slump-resistant body and extends open time. It is nonionic, so it stays stable in the alkaline cement environment.
Ask for the batch certificate of analysis and check the key values: methoxyl 19–30%, hydroxypropyl 4–12%, viscosity within 300–200,000 mPa·s, pH 6.0–7.0 and bulk density 350–450 kg/m³. Every shipment from our factory carries such a COA.
Yes. The substituted polymer hydrates in water to form clear, viscous solutions. It thickens across a 300–200,000 mPa·s range and, unlike many polymers, its solution gels reversibly only when heated to 65–75°C and returns to liquid on cooling.
Yes. Free samples and the batch COA ship typically within 24 hours of your inquiry to sales03@eclatmat.com, so you can confirm the polymer matches your specification before committing to a production order.
Tell us the specification you need — however the name appears on your paperwork. We will match the grade, confirm pricing and dispatch a free sample with a COA — typically within 24 hours.
Email sales03@eclatmat.comTIANJIN ECLAT CO.,LTD.....[ read more>>]
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E-mail: sales03@eclatmat.com
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