This article has a frank discussion of the uses of blood and photographs of dried blood on paper-all pictures of fresh blood/more graphic images are posted as links. I also refrained from making any ‘blood for the blood god’ jokes even though I really wanted to.
All experiments are valuable; here’s one that didn’t go so well-using fresh human blood as ink.
It’s a pity I didn’t have this project in mind when I was trailing surgical drains [GRAPHIC IMAGE] everywhere I went while recovering from top surgery (a double mastectomy) which would have provided a more than ample supply of human juice.
All the information I could find relating to blood painting generally assumes the blood compounds have been processed and rendered into a pigment-any cursory internet search for blood ink will only net you results about printer ink being more expensive by volume.
Once outside the body, pure blood clots very fast; rapidly turning into a goopy mess. While still in liquid form it displays good brush adhesion and is easy to use as a caligraphy medium, but the working time is a matter of mere seconds.
I experimented with diluting blood with alchohol, water and liquid gum arabic; none of these had any effect on stopping or slowing coagulation.
I wanted to find if there were any other easily available household items that could be used in such a manner.
Somewhere in the dusty attic of my memory, I had filed away a bit of heresay that food grade Tartaric and Citrid acid could be used as anti-coagulants.
At this point the supply I was willing and able to extract from myself was dwindling severly, so more conclusive results could probably be gained with samples larger than a few drops.
Between the citric acid, the tartaric acid and a combination of the two, I couldn’t discern any difference between them.
When a substantial amount of acid was added to blood, it immediately turned a rather unappealing shade of dark brown and became very sticky-remaining so without drying. Pure blood, although also sticky at first, usually dries extremely rapidly.
When the tiniest amount of acid was added the blood only darkened a shade; this also reduced the stickiness-on such a small scale it was difficult to say if it was wholly eliminated.
Image description: marks painted in dried blood on two squares of brown paper.
On the left is a series of marks testing the consistency of blood/acid blends, and on the right is a sigil drawn in undiluted blood.
Although the difference is subtle, the card on the right, pure blood, is a richer red colour than the browned acid/blood mix.
I could have expanded my experiments to using frozen coagulated animal blood, and I may one day revisit this topic, but beyond occasionnaly using my own blood extracted using diabetes lancets as an ad-hoc offering, blood magic is not high on my list of interests. I’ve invested a lot in making sure as much of my insides remain inside as I can, and I’m too germaphobic to want much contact with anyone else’s.
Could either of these acids, used in very tiny amounts, be effectively used to give fresh human blood a uniform texture? I don’t know; I’m no phlebotomist and my knowledge of chemistry is weak at best.
My recommendation to anyone wanting to try painting a sigil or ritual message in blood, is to simply work very fast.