# Ammonium sulphate and Caprolactam

Their prices have moved together.

Source page: https://www.materialinsights.org/links/ammonium-sulphate-and-caprolactam/

[Ammonium sulphate](https://www.materialinsights.org/chemicals/ammonium_sulphate/) (chemical) and [Caprolactam](https://www.materialinsights.org/chemicals/caprolactam/) (chemical): 1 relationship.

## How they are linked

### 1. Price link: by-product

*Cost and price · Strong · Both ways*

Caprolactam plants produce ammonium sulphate whatever its price, so nylon demand rather than farm demand sets much of the supply. The cyclic intermediates proxy moves with the fertiliser proxy at 0.24 monthly and 0.70 yearly.

- **0.24** monthly change correlation
- **0.70** 12-month change correlation
- **1.07** fitted elasticity

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