Hazards
- H290May be corrosive to metals.
- H302Harmful if swallowed.
- H314Causes severe skin burns and eye damage.
Full GHS classification
- Corrosive to Metals Category 1 — H290
- Acute Toxicity (Oral) Category 4 — H302
- Skin Corrosion/Irritation Category 1C — H314
Poisons schedule
Schedule 6 (S6) — SUSMP
Used for
Swimming pool / spa stain and scale remover and metal sequestrant.
Never
Not for unprotected domestic / consumer use at this concentration. Corrosive. Do NOT mix with chlorine products, hypochlorites or alkalis.
Transport
- UN number
- 3265
- Proper shipping name
- CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (1-hydroxyethylidene-1,1-diphosphonic acid)
- Class
- Class 8 (Corrosive) — see ADG Table 3.2.3
- Packing group
- III
- Hazchem
- 2X
Handling
- Appearance
- Liquid — clear, colourless to pale solution
- pH
- < 2 (strongly acidic)
- Keep away from
- Strong oxidisers; chlorine products / hypochlorites; strong alkalis; metals. Store away from incompatible materials (see Section 10).
Also known as
HEDP; etidronic acid; 1-hydroxyethane-1,1-diphosphonic acid; phosphonic stain & scale remover
Summary only. The PDF is the Safety Data Sheet: read it before handling, storing or disposing of this product, and keep it with the product.