The title says 120cc but the description says 30cc which is it???

it is 4oz. So the bottle it comes in is about 3 inches tall and approximately 1-3/4 inches in diameter. hope that helps.

Can I used it in a magnetic vacuum seal?

The EFH-1 type listed here is not recommended for use in speakers and I would guess that EFH 1 would not have the correct viscosity for use in seals.

What is the size of the nanoparticles in nm? Can you wash off the oil and resuspend in water?

i don't remember what the size was, although 4 nano meters comes to mind. If you removed the oil and tried to suspend them in water, the particles would oxidize(being exposed to oxygen) and would gather together into redish clumps. All the smooth fluidity would be no more.

Is this an authentic ferrotec fluid? what is the model number for it? amgxxx emgxxx etc etc etc

Yes, .. this efh1... part number is 92u40000000 / lot number v121021a.. this educational FF.. not for speakers etc

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Applied Magnets 4 oz (120 ml) Magnetic Ferrofluid Science Bottle – Interactive Liquid Magnet Display for Experiments, Demonstrations & STEM Projects

Product ID: 10379316

📊Visualizes magnetic field lines

🔬Reusable & durable formula

🧲120 mL ferrofluid volume

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Description

🧲 Unlock the invisible forces of magnetism—see science in motion!

READY TO USE SCIENCE - Pre-packaged 120 mL bottle means no prep—just open and start exploring magnetic phenomena instantly.
STEM LEARNING ELEVATED - Perfect for hands-on experiments that deepen understanding of magnetism and materials science.
MAGNETIC MAGIC IN MOTION - Watch magnetic fields come alive as ferrofluid dynamically shapes itself around magnets.
CLASSROOM LAB ESSENTIAL - Ideal for educators and professionals seeking a safe, engaging demonstration tool without complex equipment.
LONG LASTING INTERACTIVE DISPLAY - Reusable ferrofluid maintains its magnetic responsiveness across multiple experiments and presentations.

This 4 oz (120 mL) Magnetic Ferrofluid Science Bottle offers a visually stunning and interactive way to explore magnetic fields. Designed for STEM education and demonstrations, it allows users to observe real-time magnetic field line formations using a durable, ready-to-use ferrofluid formula compatible with standard magnets. Perfect for classrooms, science fairs, and research, it combines hands-on learning with long-lasting usability.

Specifications

ASIN	B00126LYAG
Age Range Description	Adult
Best Sellers Rank	#589,393 in Toys & Games ( See Top 100 in Toys & Games ) #4,897 in Educational Science Kits
Brand Name	Applied Magnets
Color	Black
Customer Reviews	4.3 out of 5 stars 91 Reviews
Educational Objective	Science
Included Components	Ferrofluid
Indoor Outdoor Usage	Indoor
Item Type Name	Ferrofluid
Item Weight	0.22 kg
Manufacturer	Applied Magnets
Manufacturer Part Number	F-4oz
Manufacturer recommended age	12 years and up
Material Type	Synthetic,Magnetic
Model Number	F-4oz
Number of Packs	1
Operation Mode	Manual
Size	Large
Subject Character	Ferrofluid
Theme	Science
UPC	816799012953

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56984CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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