If he had autism he wouldn't be very social, but very shy. I don't think flapping his arms is a sign of autism, but if you're concerned about it, ask a neurologist about it, or his doctor, either way. :) â¥ Cute T â¥ Â· 9 years ago.
If it weren't for food preservatives, we couldn't enjoy many of the great foods the world has to offer. Common antimicrobial preservatives include sodium nitrate, calcium propionate, disodium EDTA, potassium sorbate, sodium benzoate, and sulfites.
In this chapter, both oilborne and. waterborne preservative chemicals are described as to their. potential and uses. See Table 14â2 for a summary of pre-. servatives and their retention levels for various wood prod-. ucts. Some active ingredients can be used in both oilborne. and waterborne preservatives.