---
product_id: 93870051
title: "Ferrofluid 4 oz 120 cc bottle Great for Science Projects"
brand: "applied magnets"
price: "HK$1455"
currency: HKD
in_stock: true
reviews_count: 5
category: "Applied Magnets"
url: https://www.desertcart.hk/products/93870051-ferrofluid-4-oz-120-cc-bottle-great-for-science-projects
store_origin: HK
region: Hong Kong
---

# nanoscale ferromagnetic particles 120cc magnetic liquid synthetic oil carrier fluid Ferrofluid 4 oz 120 cc bottle Great for Science Projects

**Brand:** applied magnets
**Price:** HK$1455
**Availability:** ✅ In Stock

## Summary

> 🧲 Unlock the magnetic magic — science has never looked this cool!

## Quick Answers

- **What is this?** Ferrofluid 4 oz 120 cc bottle Great for Science Projects by applied magnets
- **How much does it cost?** HK$1455 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/93870051-ferrofluid-4-oz-120-cc-bottle-great-for-science-projects)

## Best For

- applied magnets enthusiasts

## Why This Product

- Trusted applied magnets brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Messy Fun, Managed:** Comes in a spill-resistant bottle—just add your own neodymium magnet and gloves for safe exploration.
- • **Nano-Tech in Your Hands:** Suspended nanoscale ferromagnetic particles create dynamic, eye-catching magnetic patterns.
- • **Magnetic Mastery in a Bottle:** 120cc of mesmerizing ferrofluid ready to transform your science projects and desk play.
- • **Instant Executive Toy Upgrade:** Elevate your workspace with a sleek, interactive magnetic liquid that sparks conversation and creativity.
- • **STEM-Approved Educational Tool:** Perfect for school projects and curious minds aged 3+, blending fun with scientific discovery.

## Overview

This 120cc bottle of ferrofluid contains nanoscale ferromagnetic particles suspended in synthetic oil, creating a liquid that reacts dramatically to magnetic fields. Ideal for educational science projects and executive desk toys, it requires no assembly or batteries and offers a captivating hands-on experience for ages 3 and up. Just add a strong magnet to watch mesmerizing magnetic patterns come alive.

## Description

A ferrofluid (from the Latin ferrum meaning iron) is a liquid which becomes strongly polarised in the presence of a magnetic field. It is a colloidal mixture comprising extremely small magnetic particles suspended in a synthetic oil. The particles are coated with a a soap or detergent to prevent them from clumping together. Ferrofluids are composed of nanoscale ferromagnetic particles suspended in a carrier fluid usually an organic solvent or water. The ferromagnetic nano-particles are coated w

Review: This is an awesome gift for anyone who enjoys science. I bought this for an experiment which it worked perfectly for, but I have ended up using the extra just to play with. It is incredibly interesting, and educational. All you need is a strong neodymium magnet, and a clear container to put it in. The only issue/problem that I have with it applies to any Ferrofluid, & that is that it is incredibly messy, so you need to either keep it contained, or put down some newspaper, and wear rubber gloves when using it. all things considered, the size of the bottle you get for the price & the overall fun and educational Experience Make it well worth the price.
Review: very good

## Features

- One bottle of 120cc ferrofluid
- Science projects for School
- Lots of fun
- Purchase magnets in store

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00126LYAG |
| Assembly Required | No |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #260,373 in Toys & Games ( See Top 100 in Toys & Games ) #6,741 in Science Toys & Kits |
| Country of Origin | USA |
| Customer Reviews | 4.2 4.2 out of 5 stars (85) |
| Date First Available | 27 January 2015 |
| Educational Objective(s) | Color Recognition |
| Item Weight | 219 g |
| Item model number | F-4oz |
| Manufacturer | Applied Magnets |
| Manufacturer recommended age | 3 years and up |
| Material Type(s) | Synthetic,Magnetic |
| Model Number | F-4oz |
| Number of Puzzle Pieces | 1 |
| Package Dimensions | 17.3 x 8.6 x 8.4 cm; 219 g |
| tech_spec_battery_description_toys | No batteries required |

## Images

![Ferrofluid 4 oz 120 cc bottle Great for Science Projects - Image 1](https://m.media-amazon.com/images/I/71isjwSLDGL.jpg)

## Questions & Answers

**Q: The title says 120cc but the description says 30cc which is it???**
A: 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.

**Q: Can I used it in a magnetic vacuum seal?**
A: 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.

**Q: What is the size of the nanoparticles in nm? Can you wash off the oil and resuspend in water?**
A: 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.

**Q: Is this an authentic ferrotec fluid?  what is the model number for it? amgxxx emgxxx etc etc etc**
A: Yes, .. this efh1...  part  number is 92u40000000 / lot number v121021a.. this educational FF.. not for speakers etc

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***E on 12 February 2025*

This is an awesome gift for anyone who enjoys science. I bought this for an experiment which it worked perfectly for, but I have ended up using the extra just to play with. It is incredibly interesting, and educational. All you need is a strong neodymium magnet, and a clear container to put it in. The only issue/problem that I have with it applies to any Ferrofluid, & that is that it is incredibly messy, so you need to either keep it contained, or put down some newspaper, and wear rubber gloves when using it. all things considered, the size of the bottle you get for the price & the overall fun and educational Experience Make it well worth the price.

### ⭐⭐⭐⭐⭐ Review
*by D***N on 7 July 2020*

very good

### ⭐⭐⭐⭐⭐ Review
*by M***O on 25 August 2025*

Tons of fun and a good solution for projects.

## Frequently Bought Together

- Applied Magnets Ferrotec Ferrofluid 4 oz 120 ml bottle Great for Sc
- CMS Magnetics Magnetic Ferrofluid for Fun 2 OZ. Packed with Gloves and Dropper
- SPACECARE Magnetic Iron Powder for Magnet Education Iron Filing Jar (12 Ounces) with Shaker lid

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-24*