- The text box allows you to submit a question.
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Ideally, in the fridge.
Yes. Get in touch by email if you want more specific info depending on the modes of transport you’re using.
The products are compliant with the Offensive Weapons Act 2019 and the Poisons Act 1972, indeed the concentration of sulfuric acid is well within the allowable thresholds in law, so no licence is required. The tests cannot be used to make explosives.
About 12 months, if the lid is properly secured. Anything that prevents an airtight seal will rapidly accelerate degradation.
This is normal, please read the instructions and watch the video.
See if they respond to aspirin or another substance which you know the identity of. We recommend replacing them after 12 months to be sure that they will work when you need them.
Please reply to the last email we sent you. Alternatively, email firstname.lastname@example.org. Check the “Terms” page for our phone number
The shelf life varies for each one and even then it’s affected by humidity, temperature and oxygen exposure. Our 18*C tests reveal
- Froehde – over 18 months,
- Ehrlich – around 1 year,
- Liebermann – just under 1 year,
- Marquis – 6-9 months,
- Mecke – 5-7 months,
- Mandelin – 5-7 months,
It’s a thin box with nothing but your name and address on it.
It will produce a mixture of the colours – a lot like mixing two colours of paint. If you have a powder or crystalline substance with two different looking types of crystal, try to separate them and test them individually.
Definitely! We love talking about testing, please email admin at reagent-tests.uk.