It's colorless to white or pale yellow transparent to translucent luster, brittle flakes or microstrip powder.

Products produced by acid hydrolysis and cyclization of starch.

Fluidity of white and yellow or brown powder, change amount of polygonal, round or oval shaped flat particles. 

Sodium benzoate is mostly white particles, odorless or microstrip benzoin smell, taste slightly sweet, convergence.

Store in clean, cool, dry and sealed con­di­tion.

Benzoic acid, with the smell of formaldehyde or benzene scaly or needle like crystals, is important acid food preservatives. 

Potassium sorbate is white to light yellow flake crystal, crystal granule or crystalline powder, odorless or slightly smelly, long-term exposure to air is easy to absorb moisture, oxidation and discoloration.

It's colorless to white flaky crystal or crystalline powder, odorless or slight odor.

White or near white crystalline powder, no odor.

White hygroscopic crystalline powder or crystalline solid / with acetic acid smell / easily soluble in water and ethanol.

White hygroscopic crystalline powder or crystalline solid / with acetic acid smell / easily soluble in water and ethanol

Sodium citrate is a colorless crystal or white crystalline powder, odorless, salty spicy cool.