# Caprolactam and Sulphuric acid

Their prices have moved together.

Source page: https://www.materialinsights.org/links/caprolactam-and-sulphuric-acid/

[Caprolactam](https://www.materialinsights.org/chemicals/caprolactam/) (chemical) and [Sulphuric acid](https://www.materialinsights.org/chemicals/sulphuric_acid/) (chemical): 1 relationship.

## How they are linked

### 1. Price link: input

*Cost and price · Strong · Both ways*

Oleum and sulphuric acid drive the rearrangement step, so sulphur prices enter caprolactam costs. The sulphuric acid index moves with the cyclic proxy at 0.19 monthly and 0.60 yearly. Most of that acid ends up in the by-product.

- **0.19** monthly change correlation
- **0.60** 12-month change correlation
- **0.41** fitted elasticity

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