Hydroxypropyl Methylcellulose Used In The Production Of Scr Denitrification Catalyst Support
Hydroxypropyl methylcellulose (HPMC) is a pharmaceutical excipient widely used in pharmaceutical formulations including tablets, capsules, ophthalmic preparations, creams, and suspensions. It serves as a thickener, film-former, release control agent, and adhesive, with excellent biocompatibility and safety.
- Tile Adhesives & Putty (Grades: K100M, E15) - High water retention extends open time and enhances workability/bond strength
- Cement Mortars (Grades: E5, E15) - Reduces cracking and improves fluidity/pumpability
- Self-Leveling Compounds (Grade: E5) - Low viscosity ensures superior flow and minimizes segregation
Binder for Honeycomb Ceramic Substrates - Water-soluble support for extrusion; leaves no residue after sintering (decomposes to CO+HO), ideal for automotive exhaust purification carriers.
- Tablet Coating & Sustained-Release Matrices (Grade: K100M) - High-viscosity grade forms controlled-release barriers and modulates dissolution
- Ophthalmic Solution Thickener (Grade: E5) - Safe/non-irritating, prolongs ocular residence time
- Appearance: White or off-white powder with no odor or slight odor, free of visible impurities
- Identification: Verified by TLC or UV spectroscopy
- Content Assay: Specific ratio of methyl and hydroxypropyl groups verified by GC or HPLC
- Moisture Content: Below 5% for storage stability
- pH: 6.0-8.0 for solution stability
- Viscosity: Specific range at 2% aqueous solution (25°C)
- Heavy Metal Content: ≤20 ppm (as lead)
- Impurity Testing: Strict controls for non-fibrous impurities and microbial limits
- Solubility: Rapid dissolution in cold water forming clear solution
- Cosmetics & Coatings: Water-based paints (Grade E15) for uniform film formation; shampoo/toothpaste (Grade E5) for suspension enhancement
- Food Industry: Dairy/sauce thickening (Food-Grade HPMC) as gelatin alternative in vegan products
| TEST ITEM | SPECIFICATION | TEST RESULT |
|---|---|---|
| APPEARANCE | WHITE POWDER OR GRANULES | WHITE POWDER OR GRANULES |
| IDENTIFICATION | CONFORM | CONFORM |
| METHOXYL CONTENT (wt%) | 19.0-24.0 | 21.4 |
| HYDROXYPROPYL CONTENT (wt%) | 4.0-12.0 | 8.4 |
| PH | 5.5-8.0 | 7.2 |
| LOSS ON DRYING (wt%) | 5.0 max | 3.6 |
| HEAVY METALS (ppm) | 20 max | <20 |
| ARSENIC (ppm) | 3 max | <3 |
| WATER INSOLUBLE MATTER % | 0.5 max | 0.1 |
| APPARENT VISCOSITY (cp) | 80000-130000 | 122078 |
| RESIDUE ON IGNITION (wt%) | 1.5 max | 1.4 |
| TOTAL BACTERIUM | 1000/gram max | 88 |
| MOLD | 100/gram max | 76 |
| ESCHERICHIA COLI | NEGATIVE | NOT DETECT |
Shanghai Prior Chemical Scientific And Technical Co. LTD (Grade A Tax Credit) was established in 2016. Leveraging China North Industries Group Corporation (NORINCO GROUP) resources, the company trades -industrial materials including hydroxyethyl cellulose (HEC), hydroxypropyl methyl cellulose (HPMC), sodium carboxymethyl cellulose (CMC), ethyl cellulose (EC), and nitrocellulose (NC).
The company holds nearly 70% domestic market share in HPMC for automotive exhaust honeycomb ceramics and manufactures integrated nail-fastening products.
A: Trading company.
A: Hydroxy Ethyl Cellulose (HEC), Ethyl Cellulose (EC), CMC-NH4, Chlorinated Polypropylene (CPP), N-Butyryl Chloride, HPMC, Red Base KD.
A: T/T (Telegraphic Transfer), L/C (Letter of Credit), D/A (Documents Against Acceptance), D/P (Documents Against Payment), or as per customer requirements.
A: Typically: 100% advance T/T payment, or 30% advance T/T payment with the balance against copy of B/L, or 100% L/C at sight.
A: Yes, we provide free samples (≤500g), but shipping costs are at the buyer's expense.
A: Usually 7-10 working days after payment.
A: We monitor the goods throughout the production-to-sales process and resolve any issues for our customers.
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