Oxalic Acid 99.5%

Oxalic Acid 99.5%

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🛑 Important Notice – Purchase Restrictions

Please Note: This product has been reclassified under the Poison Act 1972 as a Regulated Poison and is not available to the general public.
Oxalic Acid 99.5% can only be purchased by professionals, trade users, and registered businesses.
We will collect full company details at checkout.

If you wish to purchase, please:
✔ Fill in the Business Customer Oxalic Acid Purchase Form, or
✔ Provide a valid EPP Licence

Alternative Option for Public Use:
You may order our Oxalic Acid Solution 9.95% (non-restricted):

Oxalic Acid 99.5% (C₂H₂O₄·2H₂O) is a high-purity, professional-grade dihydrate crystal widely used for wood brightening, hull cleaning, rust mark removal and stain treatment across marine, workshop, and construction industries. Supplied in grip-seal bags, this strong acid powder dissolves rapidly for consistent professional performance.

⭐ Key Uses

1. Wood bleaching, brightening and restoration

2. Boat hull cleaning and marine surface treatment

3. Rust, tannin and deep stain removal

🧪 How to Use

1️⃣ Wood Bleaching & Brightening

1. Dissolve 50 g of oxalic acid in 1 litre warm water.

2. Apply evenly to the wood using a brush or cloth.

3. Allow 15–30 minutes, then rinse with clean water.
   Safety: Wear gloves and eye protection; ventilate area.

2️⃣ Boat Hull & Marine Cleaning

1. Mix 100 g oxalic acid with 2 litres hot water.

2. Apply to stained or yellowed hull areas.

3. Rinse well after treatment.
   Safety: Avoid prolonged contact with metals sensitive to corrosion.

3️⃣ Rust & Tannin Stain Removal

1. Dissolve 20–30 g in 1 litre of warm water.

2. Apply directly to stained surfaces.

3. Leave 10–15 minutes, scrub lightly, then rinse.
   Safety: Do not mix with chlorine-based products.

📋 Product Details

Concentration: 99.5%
Grade: Technical / Industrial Grade
Form: White Crystalline Powder (Dihydrate)
Chemical Formula: C₂H₂O₄·2H₂O
Packaging: Grip-seal bags
Available Sizes: 200g, 400g, 1kg, 2kg, 3kg, 4kg

📈 Other Names

• Oxalic Acid Dihydrate

• Ethanedioic Acid Dihydrate

• Oxalate Crystals

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❓ FAQ

1. Is this product available to general consumers?

No. It is a regulated poison under the Poison Act and can only be sold to verified business users.

2. Do you offer a non-restricted alternative?

Yes — Oxalic Acid 9.95% Solution is available to the public (link above).

3. What surfaces can oxalic acid be used on?

It is ideal for wood, marine hulls, tools, and mineral-based surfaces. Always spot test first.

Buyer assumes all responsibility for safety and use not in accordance with directions.