Tartaric acid is pH balancer and your friend in getting cochineal to release brilliant reds. It helps shift an alkaline dye bath into acidic.
Content: Tartaric Acid
Storage: Store in dry, cool place away from light.
Caution:Chemicals act as irritant and is toxic in varying quantities. Please refer to SDS supplied along with this product to understand safe usage. Store safely and away from pets and children. Use responsibly.
For your study of natural colors on fabric: WILD COLORby Jenny Dean is a marvelous book to kick start one's study of natural dye techniques and color palettes. BRILLIANT COLOURS by Cheryl Kolander, doyen of natural dyeing, is another book of interest if one is interested in developing a very personal connection with natural colors. Hers is the very first book I read on natural colors and it carried me away on her tales of color to a fairytale land. Colors talk to her, and it is fascinating to listen in.
Sold in convenient measurement units. Choose a measurement unit to suit your project requirement. Sample comes in handmade glass vial with metal cap (2 x 0.75 inches). Included dye will weigh approx 0.15 oz / 5g.