# Acetic acid and Purified terephthalic acid

Their prices have moved together.

Source page: https://www.materialinsights.org/links/acetic-acid-and-purified-terephthalic-acid/

[Acetic acid](https://www.materialinsights.org/chemicals/acetic_acid/) (chemical) and [Purified terephthalic acid](https://www.materialinsights.org/chemicals/pta/) (chemical): 1 relationship.

## How they are linked

### 1. Price link: main use

*Cost and price · Strong · Both ways*

PTA plants use acetic acid as the solvent for oxidising paraxylene, so polyester demand affects acetic acid. The cyclic intermediates proxy moves with the basic organics proxy at 0.33 monthly and 0.80 yearly.

- **0.33** monthly change correlation
- **0.80** 12-month change correlation
- **0.84** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.