Here is a list of the ingredients in the Tang Orange Drink mix:
CITRIC ACID (PROVIDES TARTNESS)
CALCIUM PHOSPHATE (PREVENTS CAKING)
POTASSIUM CITRATE (CONTROLS ACIDITY)
ORANGE JUICE SOLIDS
ASCORBIC ACID (VITAMIN C)
XANTHAN AND CELLULOSE GUMS (FOR BODY)
ALPHA TOCOPHEROL ACETATE (VITAMIN E)
VITAMIN A PALMITATE
RIBOFLAVIN (VITAMIN B2)
Here's a bit more information to make it more interesting:
"Tang is a sugary, orange-flavored, non-carbonated soft drink from the USA. The original orange flavored Tang was formulated by General Foods Corporation in 1957 and first marketed (in powdered form) in 1959. It was initially intended as a breakfast drink, but sales were poor until NASA began using it on Gemini flights in 1965, and that use was heavily advertised. Since that time, it has been associated with the U.S. manned spaceflight program."
And some people use Tang to clean their dishwashers! Weird! So Kraft Foods tells us:
"We have heard that some consumers have used TANG Drink Mix to clean their dishwashers. TANG does contain citric acid which can act as cleaning agent.
TANG Drink mix is intended to be a food product and Kraft Foods does not advocate its use for any other purpose."