How to Make White Phosphorus




Intro: How to Make White Phosphorus

White phosphorus in a alliotrope of phophorus. It is highly toxic and can ignite when exposed to air.
Here are some materials and chemicals you will need to make white phosphorus: Glass retort
Glass container
Eye protection
Breathing mask or fume hood
Butane torch
Tripod for glass retort
Table spoon
Old urine
Cinnimon powder
Charcoal dust

Step 1: Step 1

Let the urine sit out for at least 7 days. Then mix in 2 table spoons of cinnimon powder and charcoal dust and stir.

Step 2: Step 2

Pour the mixture into a glass retort with the glass tube leading into the glass container filled with plain water. Heat the glass retort with the butane torch until it bubbles up into the glass container. Wear the eyeprotection, gloves and protective clothing at all times.

Step 3: Step 3

Once the vapors have collected on the bottom of glass container, you will have made white phosphorus. If you take the phosphorus out, be preparied for it to ignite. Also, it will slowly turn into red phosphorus if left in the water for too long. It will be far more stable than white phosphorus, but still take caution.



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    10 Discussions


    Question 3 months ago on Step 3

    Can I add red phosphorus and use the same system to get White P???? Someone please let me know.


    Question 3 months ago on Step 3

    Do I use a retort? Also is the W P in powder form?


    1 year ago

    Can you use something else than cinnimon?


    3 years ago

    I tried this and the stuff didnt make white phosphorus it when I left the it one to sit for a couple weeks I noticed a white substance pursipitate out and that was the white phosphorus yu don't actually have to do all the steps I know it was phosphorus when it burnt up in the makeshift retort!

    1 reply

    Reply 3 years ago on Introduction

    These are several white substances that can normally be precipitated from stale urine, but white phosphorus isn't one of them. Have a look at this site :

    The deposit you found was probably one of these. If it had been white phosphorus, it would have ignited spontaneously at room temperature without any heating.

    As I commented earlier, you would need hundreds of gallons of urine to produce the quantity of white phosphorus shown in the photos. The author has almost certainly copied all of the images from another website and has not actually done this experiment themself.


    4 years ago on Introduction

    This is the method used by Hennig Brand in the 17th century when he discovered the element phosphorus. He obtained 1 gram from 120 GALLONS of stale urine. The piece shown in the jar in your photo would probably have required over 1000 gallons to produce by this method. Your images appear to have been copied from other internet sites including this one :

    1 reply

    Reply 3 years ago

    I did this and it made white phosphorus without the steps just let the urine sit for a few weeks


    3 years ago on Introduction

    I *highly* doubt this will work. In fact I am 99.9% sure this is
    nonsense and never tried by the author, I am just being polite. First
    off urine is a very poor source of phosphate, sure it was used the first
    time in the 17th century but you need hundreds of liters. This is just r
    reduction of phosphate, so why not use pure tricalcium phosphate
    fertilizer? And the charred cinnamon thing must be a bad joke.

    the reduction is carried out at 1200°C, a glass retort cannot be used.
    Early experiments used clay vessels. Due to the highly toxic nature of
    phosphorus and the inherent dangers of handling such an element, that
    also spontaneously ignites in air, at white hot temperatures, surely it
    is unnecessary to point out that such a venture is completely foolish?

    information and expermental work on preparing elemental white
    phosphorus can be found at the sciencemadness forum under the section
    Chemistry in General. Note that this is suitable for well-trained,
    highly experienced lab workers only.

    A very small amount of white
    phosphorus for demonstration purposes can be obtained by strongly
    heating the crude red phosphorus/glass mixture obtained from treating
    hundreds of matchbooik strikers with all possible solvents (elemental
    phosphorus dissolves in none but carbon disulfide) in a dry, oxygen-free
    environment. The thick white fumes, when captured and condensed, give
    rise to a small amount of white phosphorus.

    1 reply

    Reply 3 years ago on Introduction

    Here's a guy on YT whos yield of white phosphorus was quite impressive.

    4 vids total

    synthesis of phosphorus 1 , .... 2 , ....3 , .... phosphorus ignition test


    4 years ago on Introduction

    Did it work for you? Did you have any issues? Have any of your own pictures?