DIFFERENT COLOURED VERDIGRIS

           DIFFERENT COLOURED 

                     VERDIGRIS

       By Lady Symonne de la Croix

                  (Corina Graham)

                          19.9.20



I decided to harvest some verdigris from baths that I had started on 20.3.20

I was very surprised to see two distinctly different colours. One more light turquoise  blue and the other a dark green

Both baths used the exact same copper and vinegar so I am perplexed why there is a difference. 

My only conclusion is that perhaps it was because of the different sized containers which held different amounts of vinegar.

I wonder if this has caused differing levels of the gases in the containers to be emitted?  

Which perhaps changed something chemically in the reaction? 

I will wait to see what the differences in colour are once they have dried.

This is intriguing.

 I am intending to do another verdigris experiment using Organic Preservative Free Wine (which I believe would be closer to period wines) compared to hand made Apple Cider Vinegar and the same vinegar (FEHLBERHS Double Strength white vinegar), that I used in this experiment, to see if there is any difference.

I will make sure the containers and the amount of liquid are the same. 

Comments

Post a Comment

Popular posts from this blog

Keto 50kg weight loss and brief history

Image
Thought I would post a little history. I used to be martial arts instructor (South Pacific Tae Kwon do, Rhee Tae Kwon do) and right into exercise and healthy lifestyle so it was devastating to me when I got diagnosed with a couple of auto immune diseases causing great pain followed by massive weight gain. This also affected my mental health greatly. My MH has been an ongoing issue since childhood following many things that children shouldn't have to deal with but that I am not going to talk about here. PTSD, depression, anxiety, bi-polor syndrome,aggrophobia etc. All the labels. With the pain and my worsening MH, I ended up in a very bad way. Culminating in basically not leaving my bedroom for 3yrs except for dr and hospital visits. Follows by an extended stay in an acute mental health ward getting 11 ECTs (electric shock therapy). Not fun. But to make it brief, I started to recover, found out that I am an artist and started a not for profit group (Demented Artists Group I...
Read more

GUM ARABIC. A brief history.

Image
              GUM ARABIC HISTORY         By Lady Symonne de la Croix                            26.3.20 Gum arabic, also called acacia gum, is made from the sap of the Acacia senegal tree, or gum acacia. The sap is a cold water soluble polysaccharide. In its gum form, it thins out as temperature rises. During the stone age, it was used as a food and an adhesive. Japanese and Chinese used acacia gum for painting as early 4000 B.C. Other documented usages have shown that in Ancient Egypt (around 2650 B.C) it was used in the preparationof inks, paints and dyes. It was the pigment binder for paints used to make hierglyphs and ancient inscriptions refer to it as "kami". Gum arabic was used in the mummification process to adhere the bandage wrappings. It is known that Cleopatra ordered recipes prepared with acacia gum for her favourite lipstick. Ancient Gr...
Read more

Manuscript Inspiration for 12th night Winning Entry

Image
T'OROS ROSLIN GOSPELS Inspiration Manuscript By Lady Symonne de la Croix 27.1.20  Recently I posted of my Kingdom A&S win at 12th night in Mordonvale. Someone suggested I put up a couple of blogs about it so here goes. I wanted to try egg tempera on a rabbitskin glue gessoed box.  And I was looking for a way to incomparate it to fit with the Kingdom competition. I decided to use a Russian manuscript  (to fit the theme: Eastern Europe.  It is a beautiful and intricate image that I broke in pieces (not literally) and put on different parts of the box (front,top and sides). I found it interesting that the manuscript was still being used as a model book, 500yrs after its creation. Here is part of the information that I included in my documentation about the manuscript. T'OROS ROSLIN GOSPELS  This manuscript was made in 1262 by an extremely prominent illuminator, T'oros Roslin (Armenian, active 1256-1268),who extended...
Read more