Alum
Alum - Potassium Aluminum (Aluminium) Sulfate (Sulphate) Dodecahydrate.
Grade: 98%
Weight: 450 g (1 lb.)
Chemical formula: KAL(SO4)2*12H2O
CAS: 7784-24-9
Synonyms: Potassium Alum; Potash Alum.
Alum has several popular uses across various industries and applications. Some of the common uses include:
- Color binder in marbling - alum make the color (like gouache) stick on the paper or fabric.
- Mordant in dyeing - alum acts as a mordant in textile dyeing processes. It helps fix dyes to fabrics, enhancing colorfastness and preventing the colors from fading.
- Crystal formation - alum is commonly used in the creation of crystals through a process known as "alum crystal growth" or "alum crystallization." This is a popular and simple science experiment that is often performed in schools or as a home project.
- Soil amendment - in gardening, alum can be used to acidify soil, making it suitable for certain acid-loving plants.
Features and benefits
- We use this alum for marbling. Be sure - it works!
- High quality - very clean and pure.
- Small crystals - no large chunks.
- The packages are resealable zip-lock bags.
🆕 Need more? Bigger and discounted package is available:
900 g (2 lb.)Additional marbling supplies
Carrageenan
Worldwide, combined shipping.
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Not for human consumption.
We welcome custom orders, feedback, and questions - please contact us.