Mercury Amalgam: Operating Temperature 40-120°C

Component Specifications

Definition

Mercury amalgam is a specialized component in UV-C germicidal lamps where mercury is alloyed with other metals (typically bismuth, indium, or gallium) to create a stable solid or paste form. This amalgam controls mercury vapor pressure within the lamp, enabling precise UV-C emission at 254 nm wavelength for effective microbial disinfection while improving thermal stability and operational lifespan compared to pure mercury lamps.

Working Principle

When electrical current passes through the mercury amalgam in the UV-C lamp, it excites mercury atoms, causing them to emit ultraviolet radiation at 254 nm. The amalgam formulation regulates mercury vapor pressure, ensuring consistent UV output across varying temperatures and preventing mercury condensation at lower temperatures.

Materials

Mercury (Hg) alloyed with bismuth (Bi), indium (In), or gallium (Ga) in precise ratios (typically 50-80% Hg by weight), encapsulated in quartz or special glass envelopes resistant to UV radiation and mercury corrosion.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Form	Solid pellet or paste
Lifespan	8,000-16,000 hours
UV Output	254 nm wavelength
Hg Content	50-80%
Vapor Pressure	0.8-10 Pa (controlled by amalgam composition)
Operating Temperature	40-120°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 15858, IEC 61195, DIN EN 60335-2-65

Parent Products

This component is used in the following industrial products

UV-C Germicidal Lamp

A UV-C lamp that emits 253.7 nm ultraviolet radiation to inactivate microorganisms on surfaces and in air.

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Engineering Analysis

Risks & Mitigation

Mercury toxicity if broken
Environmental contamination from improper disposal
UV radiation exposure risk
Electrical hazards during operation

FMEA Triads

Trigger: Physical damage to lamp envelope
Failure: Mercury release and lamp failure
Mitigation: Use protective housings, proper handling procedures, and regular inspection

Trigger: Overheating due to poor ventilation
Failure: Reduced UV output and shortened lifespan
Mitigation: Install temperature sensors, ensure adequate cooling, and follow manufacturer thermal specifications

Trigger: Electrical surge or improper ballast
Failure: Premature lamp failure and potential mercury release
Mitigation: Use compatible ballasts, install surge protection, and follow electrical specifications

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±5% UV output variance across operating temperature range, mercury content within specified alloy ratios

Test Method

Spectroradiometric measurement at 254 nm, thermal cycling tests, mercury vapor pressure verification, lifespan testing per IEC 61195

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Mercury Amalgam

Manufacturer profiles associated with Mercury Amalgam.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

Why use mercury amalgam instead of pure mercury in UV-C lamps?

Mercury amalgam provides better thermal stability, consistent UV output across temperature variations, longer lifespan, and reduced risk of mercury condensation at lower operating temperatures.

What safety precautions are required when handling mercury amalgam lamps?

Follow proper disposal procedures for mercury-containing devices, avoid breakage, use protective equipment during installation, and ensure compliance with local hazardous material regulations.

How does temperature affect mercury amalgam lamp performance?

Amalgam lamps maintain more stable UV output across temperature ranges (40-120°C) compared to pure mercury lamps, making them suitable for varying environmental conditions.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Mercury Amalgam