About Us

Customer Services

Customer Support

Regional Access

Legal & Policies

Social

Get the App

Point your camera to download the app

Customer support

We're available 24/7 to help you!

Black Iron Oxide - Fe3O4 - Synthetic - 1 Pound

Black Iron Oxide - Fe3O4 - Synthetic - 1 Pound

Q: Would this be a good choice for use with demonstrations of magnets and magnetic fields?

That depends on what you're trying to do. You won't be able to make a true ferrofluid (that is, a silky smooth, low viscosity, inky black fluid), but you can indeed make a more 'chunky' magnetic fluid. You'll need strong magnets.

Q: Would this be a good choice for making ferrofluid?

In short, no! I was mislead by the first answer to this question and bought a bag to play with. The problem is particle size; ferrofluids require particles under about 10 nanometers and these are (claimed to be) 1 micron (1000 nanometers) in size. Far too large for ferrofluids, but I think I'll find something interesting to do with the stuff.

Q: If made into putty or ink, is there a way to get this stuff to attract 'itself'? Ex: Spread the magnetized ink on 2 sheets of paper.

It seems to just lay there and do nothing on it's own. I made the putty (be sure to ware gloves when making it - it is OK to handle later) You have to have a really strong magnet to attract it - - it is a fun science lab for kids but the Fe3O4 is not magnetic it is attracted by a magnet. It can be really messy !

Q: Is this suitable for making cosmetics? Cosmetic grade , if you will?

Yes. I actually saw a video where the woman had used for cosmetics. She did much research and found that it was suitable and safe for cosmetic purposes.

4.4/5

Product ID: 724016403

Secure Transaction

Details

Brand
Alpha
Item weight
1.1 Pounds
Item volume
1 Litres
Package information
Bag
Manufacturer
Alpha

Frequently Bought Together

Black Iron Oxide - Fe3O4 - Synthetic - 1 Pound

Linit Starch Crisp Classic Finish (64 Oz.) - Liquid Starch For Ironing Clothes/Perfect For Wrinkle Release/Great For Arts & Crafts Projects/Slime, Paper Mache, Silly Putty (408440)

Purex Sta-Flo Liquid Starch, 64 Ounce

Description

Have a Question? See What Others Asked

Would this be a good choice for use with demonstrations of magnets and magnetic fields?

Would this be a good choice for making ferrofluid?

If made into putty or ink, is there a way to get this stuff to attract 'itself'? Ex: Spread the magnetized ink on 2 sheets of paper.

Is this suitable for making cosmetics? Cosmetic grade , if you will?

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving over 300 million shoppers across more than 200 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews