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  1. #11
    mrred's Avatar
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    If you are *really* stuck, you can make a stock solution. Take 10g (minimum you can measure) and add distilled water to make 100ml. Then just use 10ml of that to get 1g effective quantity.

    Be sure to use distilled water, as you want to keep the integrity.

  2. #12

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    If I had some potassium dichromate crystals, I'd weigh a teaspoonful for you, which is what I think you're asking for. But R Shaffer's suggestion is a great one if what you're doing is making a solution for gum prints. Take some dichromate crystals, add enough room temp. water so that most but not all of the crystals dissolve. The solution will be 12% (if you're at 20ºC). Draw your solution from the top so you don't scoop up undissolved crystals.

    If you want just a rough guess, it's somewhere around 1.5 g/ml, so a teaspoonful should weigh 7 or 8g.

  3. #13
    smieglitz's Avatar
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    Looks like it is approximately 5.4gm/tsp according to information from this publication, page 16:

    COMMON CHEMICALS AND SUPPLIES
    IN AND AROUND YOUR HOME


    The usual disclaimers about accuracy of such a simple measurement technique apply...

  4. #14
    edwardpan's Avatar
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    Just to say accuracy, if you want a really good one, you gotta shell out quite a few hundred bucks. I just needed a good quality at best price, so that's why I got a better one from Elite Scale which is perfect for what i need!

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