Here is a recipe from Scientific Facts and Formula, 1919 for turning brass blue: "The following solution gives the brass first a rosy tint and then colors it violet and blue."
Sulphate of Copper - 435 gr.
Hyposulphite of Soda - 300 gr.
Cream of Tarter - 150 gr.
Water - 1 pint
Upon adding to the last solution 300 gr. of ammoniacal sulphate of iron and 300 gr. of hyposulphite of soda, there are obtained, according to the duration of the immersion, yellowish, orange, rosy, then bluish shades.
Sounds pretty bizarre, huh? My spell checker doesn't recognize half of the chemicals.
Here is one for green on brass:
4 oz. of Verditer Green?
4 oz. of salt
4 qt. of wine vinegar
2 oz. Sal Ammoniac
1 oz. Alum
16 oz. French Berries?
The ingredients should be boiled together.
There are quite a few more if you would like me to post them. I guess I should be able to scan in the pages from the book and post them as images.
Here is a recipe from
Here is a recipe from Scientific Facts and Formula, 1919 for turning brass blue: "The following solution gives the brass first a rosy tint and then colors it violet and blue."
Sulphate of Copper - 435 gr.
Hyposulphite of Soda - 300 gr.
Cream of Tarter - 150 gr.
Water - 1 pint
Upon adding to the last solution 300 gr. of ammoniacal sulphate of iron and 300 gr. of hyposulphite of soda, there are obtained, according to the duration of the immersion, yellowish, orange, rosy, then bluish shades.
Sounds pretty bizarre, huh? My spell checker doesn't recognize half of the chemicals.
Here is one for green on brass:
4 oz. of Verditer Green?
4 oz. of salt
4 qt. of wine vinegar
2 oz. Sal Ammoniac
1 oz. Alum
16 oz. French Berries?
The ingredients should be boiled together.
There are quite a few more if you would like me to post them. I guess I should be able to scan in the pages from the book and post them as images.