Welding Filter Lens
Product Code : EL-CLE-10986
Quick answer: The Welding Filter Lens is a Shade 9 filter recommended for safely watching burning magnesium and similarly bright reactions in chemistry demonstrations. Held between the eyes and the flame, it cuts the intense white light to a comfortable level while standard eye protection is still worn. Lab Exports supplies it as a reseller to schools, colleges and universities.
Specifications
| Item | Detail |
|---|---|
| Shade rating | Shade 9 |
| Recommended use | Viewing burning magnesium and similarly bright reactions |
| Use with | Standard laboratory eye protection |
How it is used
Magnesium ribbon burns in air with a brilliant white flame as it combines with oxygen to form white magnesium oxide (2Mg + O2 gives 2MgO). The flame is intense enough to be uncomfortable and potentially harmful to look at directly, and it is rich in ultraviolet light, so a filter is recommended whenever students watch the reaction closely.
Welding filter lenses are graded by shade number: the higher the number, the darker the lens. Shade 9 is the rating recommended for viewing burning magnesium. It is used alongside, not in place of, the safety spectacles or goggles worn for the demonstration.
- Everyone watching puts on standard eye protection first.
- The teacher holds a short length of magnesium ribbon in tongs and ignites it in a Bunsen flame over a heat-resistant mat.
- Observers view the burning ribbon through the Shade 9 lens rather than directly.
- After the flame dies, the white magnesium oxide is collected to discuss the product of the reaction.
Key features
- Shade 9 rating, as recommended for burning magnesium
- Reduces the glare of bright combustion reactions to a safe viewing level
- Used together with standard eye protection
- Simple safety accessory for chemistry demonstrations
- Suits oxidation and combustion lessons in school chemistry
Documentation and supply
Lab Exports supplies the welding filter lens as a reseller; it is not manufactured by Lab Exports. It is supplied from Delhi to schools, colleges and universities in India and 60+ countries, with the export documents for each shipment. More about the company is on the About Lab Exports page.
Related Chemistry Lab Equipment products
- Helium Balloon Gas Cylinders (EL-CLE-10987)
- Bottled Gas, Mini, Non-Refillable (EL-CLE-10988)
- Balloon Regulator (EL-CLE-10989)
- Fixed Flow Regulator (EL-CLE-10990)
- Miniflow Regulator (EL-CLE-10991)
- Valve for Mini Gas Bottles (EL-CLE-10992)
The full range is in the Chemistry Lab Equipment section of the Chemistry Lab range.
Frequently asked questions
What shade is the welding filter lens?
Shade 9, the rating recommended for safe viewing of burning magnesium.
Does the filter lens replace safety goggles?
No. It is used alongside standard eye protection as an extra filter for very bright reactions.
What is the price of the welding filter lens?
Prices are not published on the website. Add the welding filter lens to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code EL-CLE-10986 and the quantity, to receive a quotation.
Is the welding filter lens made by Lab Exports?
No. Lab Exports supplies the welding filter lens as a reseller under house code EL-CLE-10986. It can be quoted together with other laboratory equipment in one enquiry.
Request a quote
Email [email protected] with the house code EL-CLE-10986 and the quantity, or add the welding filter lens to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
