SciMed
Magnesium Ribbon — 99.95% Pure, Lab Grade, 25g 70ft Roll
Magnesium Ribbon — 99.95% Pure, Lab Grade, 25g 70ft Roll
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SciMed Magnesium Ribbon is 99.95% pure lab-grade magnesium in continuous ribbon roll (25g / 70 ft per roll, 4mm × 0.2mm cross-section) — ignites reliably at 473°C, burns at 3,100°C with pure bright-white flame for chemistry teaching demonstrations, Grignard reagent prep, activity-series experiments, thermite ignition, and industrial lab use. $19.99 per single roll, $1,499.99 per 100-roll case ($15/roll bulk). CAS 7439-95-4. Made in USA. Same-day dispatch.
High-purity 99.95% magnesium ribbon (lab grade) for chemistry teaching, combustion demonstrations, thermite prep, activity-series experiments, and industrial laboratory use. Consistent bright-white flame + predictable burn rate = reproducible classroom results every time. 25g roll ≈ 70 feet (21.3 m) usable ribbon at 4mm × 0.2mm cross-section. Individual roll to 100-roll bulk pack for teaching sets, contract lab supply, and institutional procurement.
Variant selection
| Variant | Total ribbon | Best for | Price | Per roll |
|---|---|---|---|---|
| 1 Roll | 25g / 70 ft | Single-class demo, teacher personal supply, small research batch | $19.99 | $19.99 |
| 5 Rolls | 125g / 350 ft | Multi-section chemistry teacher, small chem dept semester supply | $89.99 | $18.00 (10% off) |
| 10 Rolls | 250g / 700 ft | High-school chem department annual supply, mid-size university teaching lab | $169.99 | $17.00 (15% off) |
| 100 Rolls | 2.5 kg / 7,000 ft | School district bulk order, university chemistry stockroom, contract lab supply, industrial + pyrotechnic supply | $1,499.99 | $15.00 (25% off) |
SciMed vs Fisher Scientific / VWR / Sigma-Aldrich / Amazon — how we compare
| Feature | SciMed (this listing) | Fisher Scientific | VWR | Sigma-Aldrich | Amazon (generic) |
|---|---|---|---|---|---|
| Purity | 99.95% | 99.95% | 99.9% | 99.95-99.99% | 90-98% (variable) |
| Single 25g roll | $19.99 | $28-45 | $32-48 | $40-90 | $10-25 (unverified purity) |
| Bulk 100-roll case | $1,499.99 ($15/roll) | $2,200-$3,800 | $2,400-$3,600 | $3,500-$7,500 | Not standard |
| Account required | No — direct order | Yes (institutional) | Yes (institutional) | Yes | No |
| Shipping to teachers/schools | Same-day dispatch, US | 3-5 business days | 3-5 business days | 3-5 business days | Variable |
| Net-30 institutional | Yes (10+ rolls) | Yes | Yes | Yes | No |
| Certificate of Analysis (COA) | On request 10+ rolls | Standard | Standard | Standard | No |
| SDS / MSDS | On request, free | Standard | Standard | Standard | Sometimes |
| SAM.gov compliant | Yes | Yes | Yes | Yes | No |
The SciMed value: lab-grade 99.95% purity at direct-manufacturer pricing (30-60% under distributor channel), no institutional account required for individual teachers, same-day US dispatch, and COA/SDS available on institutional orders. Amazon "magnesium ribbon" is often 90-95% purity — inconsistent ignition + off-color flame that ruins classroom demos.
Applications
- High school + college chemistry demonstrations — the classic "magnesium combustion" demo showing bright-white flame, MgO product formation, exothermic reaction stoichiometry
- Activity series experiments — reactivity of Mg with dilute acids (HCl, H₂SO₄), water (steam), oxygen — foundational undergraduate lab
- Grignard reagent prep — organic chemistry: Mg metal reacting with alkyl halides in dry ether to form Grignard reagents (organomagnesium compounds)
- Thermite reaction preparation — magnesium ribbon as the ignition fuse for iron oxide + aluminum thermite demos (advanced supervised chemistry)
- Emission spectroscopy demonstrations — burning Mg emits characteristic UV + visible spectrum for teaching atomic emission
- Rocket + pyrotechnic education — supervised amateur rocketry, safe fireworks chemistry teaching (with appropriate permits)
- Metallurgy + materials science labs — reactive metal handling training
- Emergency + survival kit assembly — magnesium ribbon as fire-starter component in survival preparedness kits
How to run the classic magnesium combustion demonstration (safe protocol)
- Prepare the room: ventilated lab, fume hood or open windows, students positioned at ≥2 meters from demo bench.
- Distribute PPE: welding-grade shade #3+ UV goggles for teacher (direct viewer); standard safety glasses acceptable for students at >2m distance.
- Cut a 2-3 cm piece of magnesium ribbon using scissors or tin snips. Handle with clean crucible tongs.
- Hold ribbon with tongs over a heat-resistant surface (ceramic tile, sand-filled watch glass).
- Ignite with Bunsen burner flame — the ribbon ignites within 2-3 seconds and burns with intense bright-white flame for 5-15 seconds depending on length.
- Do NOT look directly at the flame. Observe indirectly via reflected light or through UV goggles only.
- Wait for complete combustion. Collect the white MgO powder residue on the heat-resistant surface — this is the product of Mg + O₂ → 2 MgO.
- Cool 5-10 minutes before disposal. MgO can be disposed of in normal waste; it is non-hazardous.
- Emergency: Magnesium fires cannot be extinguished with water (H₂O reacts with hot Mg to produce H₂ gas and can accelerate the fire). Smother with dry sand or a Class D fire extinguisher only. Never use CO₂, water, or foam extinguishers on burning magnesium.
Specifications
| Purity | 99.95% Mg (high-purity lab grade — trace impurities primarily Al, Si, Fe, Ca) |
|---|---|
| CAS number | 7439-95-4 (magnesium) |
| Format | Continuous ribbon roll (uncut, snip to length as needed) |
| Roll weight | ~25 g per roll |
| Roll length | ~70 feet (21.3 meters) per roll |
| Ribbon width | 4 mm (5/32") |
| Ribbon thickness | 0.2 mm |
| Ignition temperature | ~473°C (883°F) |
| Combustion temperature | ~3,100°C (5,610°F) — extremely hot |
| Combustion product | Magnesium oxide (MgO) — white powder residue (nitride Mg₃N₂ if burned in nitrogen atmosphere) |
| Storage | Dry, sealed container, away from moisture + acids. Shelf life 5+ years with proper storage. |
| Country of manufacture | United States (San Jose, California) |
| Shipping | Ships as non-hazardous material (magnesium ribbon in metal spools is not classified as flammable solid in shipping quantities under DOT/IATA thresholds) |
Educator vs research vs industrial use
Teaching (most common use): Cut 1-3 cm pieces for individual student combustion demos. One 25g roll = 200+ demo pieces at 3cm each = full semester supply for 4-6 chemistry classes.
Research lab (Grignard prep): Cut to specified length per protocol (typically 1-2 g Mg per Grignard synthesis). Store cut ribbon in dry desiccator between uses.
Industrial + pyrotechnic (bulk): 100-roll case = 2.5 kg for pyrotechnic composition, thermite ignition supply, or contract chemistry lab consumable inventory.
Best for
- Bundle buyers who want free shipping — single rolls ship $7 flat US, but 5-roll bundles ($89.99) and up ship free; stocking up saves on both per-roll price and shipping
- High school + college chemistry teachers (essential combustion demo material)
- University chemistry teaching labs (undergraduate + organic + inorganic curriculum)
- Research chemistry labs (Grignard reagent prep, activity series)
- Contract testing + analytical labs
- Pyrotechnic + fireworks industry (with appropriate ATF permit)
- Amateur rocketry + survival preparedness (fire-starter component)
- International science teaching procurement via DDP
Buying for a chemistry department, school district, or industrial supply?
- Volume pricing on 100-roll bulk (2.5 kg case at $1,499.99 = $15/roll vs $19.99 individual — 25% off)
- Free US shipping on 5-roll bundles and up ($89.99+) — single rolls ship $7 flat, so bundling for a department saves on shipping too
- Net-30 invoicing for verified academic + industrial accounts
- SAM.gov compliant for federal + academic lab procurement
- Certificate of analysis (COA) for purity available on 10+ roll orders — trace impurity analysis, moisture content
- MSDS / SDS on request for institutional safety compliance
- International DDP shipping — chemistry teaching + research procurement globally
Related reading
FAQ — 12 common questions
What is magnesium ribbon used for in chemistry class?
The classic combustion demo (Mg + O₂ → 2 MgO showing bright-white flame + white ash), activity-series reactivity experiments (Mg + dilute HCl produces H₂ gas), Grignard reagent prep in organic chemistry, and emission spectroscopy demonstrations. One 25g roll (~70 feet) yields 200+ demo pieces at 3cm each = a full semester supply.
What purity magnesium ribbon do I need?
99.95% is lab-grade / teaching-grade standard. Below 99% (typical Amazon consumer product), impurities cause inconsistent ignition, variable burn rate, and off-color flame — ruining reproducible classroom results. Research labs (Grignard prep) require 99.9%+ for reliable organomagnesium formation.
How much does magnesium ribbon cost?
SciMed direct: $19.99 per single 25g roll, dropping to $15/roll at 100-roll bulk (25% off). Distributor channel (Fisher Scientific, VWR, Sigma-Aldrich): $28-90 per single roll due to institutional-account markup. Amazon: $10-25 per roll but purity is often unverified (90-95%).
Do I need special shipping for magnesium ribbon?
No — for the roll quantities we ship (25g single up to 100-roll 2.5kg case), magnesium ribbon does NOT trigger DOT / IATA flammable-solids shipping restrictions (Class 4.1 threshold is much higher). Ships via standard ground / air freight. For very-bulk institutional orders (>50 kg), contact us for freight arrangement.
Do students need special eye protection to view the burning ribbon?
YES — this is the single most important safety point. Magnesium burns at 3,100°C with intense UV emission that causes photokeratitis (welder's flash) within seconds of direct viewing. Standard safety glasses are NOT adequate. Use welding-grade shade #3 or higher UV-blocking goggles for direct observation, OR position students to view from >2 meters with normal safety glasses (indirect viewing). School lab safety protocols cover this — verify your teacher training materials include the UV warning.
Why 99.95% purity matters for teaching?
Below ~99% purity, trace impurities cause inconsistent ignition (some sections light easily, others require prolonged flame), variable burn rate, and off-color flame (yellowish tint instead of pure white). Lab-grade 99.95% ribbon ignites reliably with a Bunsen burner in 2-3 seconds and burns at predictable rate — reproducible classroom results. Craft-store "magnesium ribbon" is often 90-95% purity and produces frustrated students + failed demos.
How long does an opened roll stay usable?
Properly stored (dry sealed container, away from moisture + acids): 5+ years without meaningful degradation. Signs of degradation: dull grey surface (surface oxidation), reduced ignition reliability, uneven burn. Fresh ribbon has a slight metallic sheen; degraded ribbon looks powdery. If a roll fails to ignite in 5 seconds of Bunsen burner exposure, it's oxidized — replace.
How do I put out a magnesium fire?
Magnesium fires CANNOT be extinguished with water — H₂O reacts with hot Mg producing hydrogen gas + accelerating the fire. Use dry sand OR a Class D fire extinguisher only. Never use CO₂, water, foam, or dry-chemical extinguishers on burning magnesium. Every chemistry classroom should have dry sand or a Class D extinguisher accessible before running magnesium demos.
Can I use magnesium ribbon for thermite reactions?
Yes — magnesium ribbon is the standard ignition fuse for iron oxide + aluminum thermite. Approximately 3-5cm of Mg ribbon inserted into the thermite mixture provides the ~2,000°C ignition temperature needed. This is advanced supervised chemistry only — thermite is legal for educational use in most US states but requires proper safety protocols, outdoor site, and instructor supervision.
What is the CAS number for magnesium?
CAS 7439-95-4 (magnesium metal). SDS and COA available on request for institutional safety compliance and audit documentation. Email sales@scimedstore.com or clinic@scimedstore.com.
Do you offer bulk pricing for school districts or universities?
Yes. Automatic volume pricing baked into variants: 5 rolls $89.99 ($18/roll = 10% off), 10 rolls $169.99 ($17/roll = 15% off), 100 rolls $1,499.99 ($15/roll = 25% off). Net-30 invoicing on 10+ roll institutional orders. For 500+ roll orders or annual supply contracts, email clinic@scimedstore.com for custom pricing.
Any restrictions on international shipping?
Some countries classify magnesium ribbon as controlled precursor (particularly for pyrotechnic + explosive concerns). US, Canada, EU, UK, Australia, most Asian markets: no restrictions on small-to-medium quantities for educational/research use. Middle East + some restricted-import jurisdictions may require import permits. Contact us with your destination country for pre-shipment compliance check.
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99.95% Magnesium Ribbon Roll | High Purity Roll | 70ft Roll
Looking to buy magnesium ribbon that delivers consistent performance and unmatched purity? Our High Purity 99.95% Magnesium Ribbon (25g, approx. 70ft roll) is the perfect solution for chemistry labs, educational institutions, research facilities, and industrial use. Sourced with high standards, this magnesium metal ribbon is a top-grade option trusted by science professionals across the USA.
At Scimed Store, we specialize in providing top-quality scientific and lab materials that help researchers, educators, and industry professionals carry out accurate experiments with confidence. Our magnesium ribbon is designed for burning magnesium ribbon demonstrations, chemical reactivity tests, and other high-temperature laboratory procedures.
Product Highlights:
- Exceptional Purity: 99.95% magnesium content, certified and tested for laboratory use.
- Generous Quantity: 25g roll containing approximately 70 feet (21 meters) of ribbon.
- Consistent Quality: Uniform width and thickness for reliable, reproducible experimental results.
- Secure Packaging: Hermetically sealed to prevent oxidation and maintain purity levels.
- Complete Documentation: Comprehensive SDS (Safety Data Sheet) included with every magnesium ribbon purchase.
- Versatile Applications: Perfect for demonstrations, chemical reactions, and scientific research.
Why Scimed Store?
We’re more than just a supplier – we’re your trusted partner in science. Here’s why professionals buy magnesium ribbon from Scimed Store:
- Lab-Tested Quality.
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- Detailed Product Information, including magnesium ribbon SDS.
Perfect for Multiple Scientific Applications:
- Educational Demonstrations: The spectacular bright white light produced when burning mg ribbon makes it perfect for classroom demonstrations of chemical reactions and combustion principles.
- Chemistry Experiments: Ideal for demonstrating magnesium's properties as a reducing agent in various chemical reactions.
- Laboratory Research: Conduct experiments requiring high-purity magnesium with confidence.
- Material Science Studies: Examine magnesium's unique properties and applications in various scientific fields.
- Photography: Historically used as a light source before the advent of modern flash technology.
How to Handle & Store Magnesium Ribbon
While magnesium is safe to use under supervision, it’s essential to follow proper storage and handling precautions:
- Keep away from open flames and moisture.
- Store in a dry, cool environment.
- Use personal protective equipment while handling.
- Always refer to the SDS magnesium ribbon before performing experiments.
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Whether you're conducting a combustion experiment or teaching students about the periodic table, our magnesium ribbon ensures quality and accuracy. This 99.95% pure magnesium metal ribbon is perfect for laboratory demonstrations, school experiments, and industrial R&D.
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