How to Make 250 ml of 40 ppm Colloidal Gold at Home

• 250 ml distilled water (note: do not use tap or mineral water. Water must be distilled)
• 1 ml Gold Chloride solution (containing 10 mg pure gold, from SaltLakeMetals.com. See this link for exact product to buy). 
• 0.5 ml Sodium Carbonate solution (recipe below) - this is your electrolyte solution
• 1/2 teaspoon Maltodextrin - this is your reducing agent

Colloidal Gold Equipment & Items

• ml syringes (for accurate measurement of liquids)
• Glass beaker or heat-resistant glass container (at least 250ml capacity)
• Magnetic Stirring plate with included rod and magnets (optional - this is what Earth Clinic uses to mix ingredients fast)
• Glass stirring rod 
• Heat source (stovetop or microwave)
• Measuring spoons (for convenience)
• Storage bottle (8 or 16 oz boston round bottle for colloidal gold solution).

Sodium Carbonate Solution Equipment

• Bottle to store sodium carbonate solution
• Arm & Hammer Washing Soda

Step-by-Step Instructions

Method 1: Traditional Boiling Method

1. Boil 250 ml of distilled water.
2. Add 1/2 teaspoon of maltodextrin while stirring continuously until fully dissolved.
3. Slowly add 1 ml of Gold Chloride solution, continuing to stir.
4. Add 0.5 ml of Sodium Carbonate solution while stirring constantly.
5. Allow the solution to cool to room temperature.
6. Store in a glass bottle away from direct light.
7. The color of your 40 ppm colloidal gold should be ruby red. 

Method 2: Quick Microwave Method

1. Pour 250 ml of cold distilled water into a glass beaker.
2. Mix 1 ml of Sodium Carbonate solution.
3. Add 1 ml of Gold Chloride solution and stir well.
4. Mix 1/2 teaspoon of maltodextrin.
5. Heat in a microwave until the solution just begins to boil (about 2 minutes)
6. Allow it to cool before transferring to your storage bottle.
7. The color of your 40 ppm colloidal gold should be ruby red. 

 Sodium Carbonate Electrolyte Solution (Using Arm & Hammer Washing Soda)

Ingredients

• 12.4 grams (approximately 2.3) teaspoons of Arm & Hammer Washing Soda (sodium carbonate anhydrous)
• Distilled water to make 100 ml

Instructions

1. Measure 12,4 grams (2.3 teaspoons) of Arm & Hammer Washing Soda.
2. Dissolve into a 100 ml beaker of hot distilled water, stirring until fully dissolved.
3. Use 05. ml (10 drops) per 250 ml Colloidal Gold solution.

• Do not use metal utensils when handling colloidal gold.
• Store in the fridge if not consumed within a few weeks.