# data[].attributes.body
Chemical formula: Na3C6H5O7·2H2O
inoic
How to make it:
This method uses calcium citrate and soda mixture to occur complex decomposition reaction, filter out insoluble matter to obtain sodium citrate. The product has poor purity and long operation flow. In previous years, it has been reported that by adjusting the pH value of the mixed conditions, the process has been simplified, the production cost has been reduced, and the quality products have been obtained.
Good or bad:
It is not harmful to human. The reason is It is an organic compound that looks white to colorless crystals. Odorless, with a cool salty spicy flavor. Stable at room temperature and air, slightly soluble in wet air, weathering occurs in hot air. Heat to 150 ℃ loss of crystalline water. Soluble in water, soluble in glycerin, insoluble in alcohols and other organic solvents, overheating decomposition, in the humid environment slightly moisture solution, in the hot air slightly weathered, its solution pH value of about 8.
Why add it:
It can make the tea sweeter and can make less money to make it.
Physical and chemical properties of it:
Colorless crystal or white crystalline powder. Salty taste, and a sense of coolness.Soluble in water and glycerin, insoluble in alcohols and other organic solvents have moisture solution, weathering in hot air. 150 ℃ above loss of crystalline water and decomposition

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The iced black tea made by self

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Chemical formula: C18H9N Na2O8S2
covalent
What is it:
A substance formed by caramel or sucrose that is not completely decomposed and dehydrated at high temperatures.
Good or bad:
It isn’t harmful to human. The reason is caramel and sucrose aren’t harmful to human.
Why add it:
It can let the tea more tasty and sweeter.
Physical and chemical properties of it:
Viscous liquid or powder, dark brown, bitter.

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Chemical formula: C6H12O6
ionic
How to make it:
Fructose syrup is a starch sugar crystal made from plant starch hydrolysis and isomerization, and it is an important sweetener. The production of fructose syrup is not subject to regional and seasonal restrictions, the equipment is relatively simple, the investment cost is lower. Because it is mainly composed of fructose and glucose, it is called  "fructose syrup ".
Good or bad:

Now the food processing industry uses fructose syrup, mostly extracted from a variety of plants starch sugar, its side effects are very small, usually people only eat a small amount of fructose syrup, the body does not have obvious harm, but if the long-term overdose of fructose syrup, will aggravate the burden of multiple organs of the human body, and will make some diseases high, It is very bad for human health.

Why add it:
It will make the tea more tasty.
Physical and chemical properties of it:
Colorless viscous liquid, good fluidity at room temperature, odorless.

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Answer 2019
https://www.answers.com/Q/What_is_the_chemical_formula_for_caramel?tdsourcetag=s_pcqq_aiomsg

Jacqueline B. Marcus MS, RD, LD, CNS, FADA, in Culinary Nutrition, 2013 https://www.sciencedirect.com/topics/food-science/high-fructose-corn-syrup