SPOT ON ACIDS™

14ct–24ct Gold & Silver Testing Acid Solution Kit (2 x 10ml Dropper Bottles)

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14ct–24ct Calibrated

Verifies high-carat gold from 14ct up to fine 24ct.

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Silver Colour-Shift

Confirms sterling (925) & fine silver instantly.

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Colour-Coded Caps

Blue for high-carat gold, red for silver — no mix-ups.

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Precision Nozzle

Single controlled drops prevent spills & waste.

The Spot On Acids™ 14ct–24ct Gold & Silver Testing Solution Duo provides the two most critical acids needed for rapid precious metal appraisal. Ideal for jewellers, pawnbrokers, antique collectors, and car-boot hunters, this 2-bottle kit delivers fast, definitive chemical verification for high-carat gold and silver scrap, coins, bullion, and jewellery.

📦 What's Included 📊 Reaction Chart 🔬 How to Test 🚚 Safety & Delivery

📦 What's Included

🔵 14ct–24ct Gold Testing Solution (10ml): Calibrated formula to verify higher-carat gold items (14ct 585, 18ct 750, 22ct 916, and 24ct 999 pure gold).
🔴 Silver Testing Solution (10ml): Schwerter formulation producing a distinctive colour-shift reaction to confirm sterling (925), Britannia (958), and fine (.999) silver.
Precision Nozzle Dropper Tips: Controlled dispenser nozzles deliver single, neat droplets without mess or product wastage.
Full Step-by-Step Instruction Guide: Clear written guidance for both touchstone streak-testing and direct spot-testing.

📊 Gold & Silver Reaction Chart

Metal Tested	Solution Used	Expected Result
14ct–24ct High-Carat Gold	14ct–24ct Acid	Completely unaffected; remains bright. PASS
9ct Gold / Plated / Rolled Gold	14ct–24ct Acid	Fizzes, dissolves, or turns dark green / brown. FAIL
Sterling Silver (.925)	Silver Acid	Turns distinctive dark red / burgundy. PASS
Fine Silver (.999)	Silver Acid	Turns bright blood red. PASS
EPNS / Silver Plate / Nickel	Silver Acid	Rapid fizzing; turns green or blue. FAIL

🔬 How to Test (Step-by-Step)

Streak Test (Recommended): Firmly rub your test piece across an assay touchstone to leave a clear, visible metal streak.
Apply One Drop: Squeeze a single drop of the matching solution directly onto the streak mark using the precision nozzle.
Observe the Reaction:
- High-Carat Gold: Genuine 14ct–24ct gold holds its colour; 9ct or plated metal rapidly dissolves.
- Silver: Genuine sterling or fine silver turns dark red; plated or base metal turns green or fizzes.
Clean: Neutralise with water or neutraliser solution, then wipe clean with a tissue or cloth.

🚚 Safety & Delivery

Safety Packaging: Solutions contain acid. Supplied in heavy-duty dropper bottles with tactile raised hazard warning triangles and child-resistant safety caps. Store upright in a cool, dry place away from children.

UK Dispatch: Orders placed before 2:00 PM (Monday–Friday) are dispatched the same working day in secure, chemical-safe postal packaging via tracked delivery.