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HFA 134a Propellant (Pharmaceutical Grade R134a Gas)
HFA 134a Propellant for Pharmaceutical Aerosol Applications
In pharmaceutical aerosol projects, especially for metered dose inhalers (MDIs), selecting a propellant is not just a specification comparison on paper.
In many cases, buyers are more concerned about consistency between batches, regulatory documentation, and long-term supply reliability than minor price differences.
HFA 134a (also known as R134a) has become a widely adopted propellant in inhalation and spray formulations because it offers stable performance during formulation and filling processes, along with a relatively mature regulatory acceptance in global markets.
From our experience supporting international customers, this product is typically sourced for projects where product stability, safety, and compliance are all critical.
Typical Applications
HFA 134a is commonly used in:
Metered Dose Inhalers (MDI)
Nasal spray formulations
Medical aerosol products
Controlled pharmaceutical spray systems
In these applications, maintaining consistent vapor pressure and compatibility with active ingredients is often more important than cost alone.
When sourcing pharmaceutical-grade HFA 134a, buyers often evaluate more than just purity data.
Some of the most common considerations include:
Regulatory support
Whether the supplier can provide DMF or similar documentation
Supply stability
Ability to support long-term bulk demand without fluctuation
Packaging options
Cylinder, ISO tank, or customized bulk delivery
Batch consistency
Especially important for inhalation drug production
These factors can directly affect project timelines, especially during validation and regulatory submission stages.
HFA 134a vs R134a: What's the Difference?
Although the names are often used interchangeably, there are important differences in actual use.
| Item | HFA 134a (Pharma Grade) | R134a (Industrial Grade) |
|---|---|---|
| Main Use | Pharmaceutical aerosol | Refrigeration / industrial |
| Purity | High (≥99.99%) | Standard industrial level |
| Regulatory Support | DMF / pharma compliance | Typically not available |
| Application Requirement | Strict consistency | General industrial use |
In practice, pharmaceutical manufacturers require higher purity standards and documentation support, which makes pharma-grade HFA 134a a different category from standard refrigerant gas.
Technical Specifications (Typical Values)
Chemical Name: 1,1,1,2-Tetrafluoroethane
CAS No.: 811-97-2
Molecular Formula: C₂H₂F₄
Purity: ≥ 99.99%
Boiling Point: -26.3°C
Vapor Pressure: Stable under standard conditions
Detailed specifications can be provided based on specific project requirements.
Our Supply Experience
We have been involved in supplying fluorinated gases for international markets, including pharmaceutical and specialty applications.
In most cooperation cases, customers are not only looking for a supplier, but also for a partner who understands:
documentation requirements for export
consistency expectations for pharmaceutical use
coordination between logistics and production schedules
Our team is familiar with handling bulk shipments and supporting customers across different regions, helping reduce uncertainties during procurement.
Common Mistakes When Sourcing HFA 134a
Over the years, we've seen a few recurring issues that can affect project progress:
Focusing only on price
Lower-cost options may not meet pharmaceutical-grade requirements
Using industrial-grade alternatives
This can create compliance risks in regulated markets
Ignoring documentation readiness
Missing DMF or supporting files may delay approvals
Underestimating supply continuity
Inconsistent supply can impact production schedules
Avoiding these issues early can save significant time during later project stages.
Packaging & Supply Options
We can provide flexible supply solutions based on customer needs:
30lb/13.6kg Disposable cylinder
926L Ton Cylinder
22 Ton ISOTANK
FAQ
What is HFA 134a used for?
It is mainly used as a propellant in pharmaceutical aerosols such as inhalers and sprays.
Is HFA 134a safe for inhalation products?
Pharma-grade HFA 134a is widely used in regulated inhalation products when meeting required standards.
Do you provide regulatory support such as DMF?
Relevant documentation support can be discussed based on project requirements.
Can you supply in bulk quantities?
Yes, bulk supply options are available for long-term cooperation.
Send your request, we reply within 24 hours.
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