Hydroxypropyl Methylcellulose (HPMC) Storage — Hypromellose Pharmaceutical Excipient Tank Selection

Storing HPMC? Start Here

If you're dealing with Hydroxypropyl Methylcellulose (HPMC), you're likely in the pharmaceutical or food industry. HPMC is a versatile, water-soluble polymer used in controlled-release tablets and film coatings. When it comes to storage, HPMC is chemically inert in its dry form and remains stable in aqueous solutions. This means it's not particularly reactive, making it relatively easy to store.

Can you store it in a poly tank?

Yes, you can store HPMC in high-density polyethylene (HDPE) or cross-linked polyethylene (XLPE) tanks. These materials are suitable for both dry and aqueous solutions of HPMC, adhering to FDA standards for food and pharmaceutical applications.

Key Issue: Viscosity Control

One crucial aspect of storing HPMC is managing its viscosity. HPMC solutions can range from thin to very thick, depending on the concentration and grade. Ensure your storage system can handle the viscosity of your specific HPMC solution, especially if you're using it for high-shear processes like film coating or granulation.

The safety that actually matters

• Use FDA-listed plastics for any contact surfaces.
• Ensure all gaskets and seals are USP Class VI compliant.
• Monitor temperature to prevent changes in viscosity.
• Use proper ventilation if working with large volumes to avoid dust.

Common questions

Can HPMC be stored in stainless steel tanks?

Yes, 316L stainless steel is standard for primary product-contact surfaces.

Do I need special gaskets for HPMC storage?

Yes, ensure gaskets are USP Class VI compliant, with silicone or EPDM being common choices.

Is there a risk of chemical reaction with HPMC?

No, HPMC is chemically inert, making it safe for storage in approved materials.