---
title: "Tetrakis(hydroxymethyl)phosphonium chloride (124-64-1)"
url: https://analyt-mtc.com/tools/hazard-search/tetrakis-hydroxymethyl-phosphonium-chloride-124-64-1/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/tetrakis-hydroxymethyl-phosphonium-chloride-124-64-1/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/tetrakis-hydroxymethyl-phosphonium-chloride-124-64-1/
---

Hazard search

# Tetrakis(hydroxymethyl)phosphonium chloride

CAS number

124-64-1

Also known as

Tetramethylolphosphonium chloride · THPC

## UK workplace exposure limits

Our data hold no UK limit for this substance.

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH 5046** / Tetrakis(hydroxymethyl)phosphonium chloride by HPLC/UV / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/5046.pdf) | Active (pump) | Two coated glass fibre filters in 37mm cassette | HPLC-UV | [225-9003](https://analyt-mtc.com/catalog/product/skc-coated-treated-filters/#part-225-9003) |

Methods and limits as published by their agencies and summarised by SKC; check the current method and the limit that applies to you before sampling.

Source: [SKC Ltd (UK), Hazard Search, used with SKC's permission (opens in a new tab)](https://www.skcltd.com/hazard-search.html); [SKC Inc. (USA), Sampling Guides, used with SKC's permission (opens in a new tab)](https://international.skcinc.com/sampling-guides/)