: Not typically required under general ventilation, but necessary if the product is misted or sprayed in an enclosed space. Safety Data Sheets - SDS - MSDS - Ecolab
The "new" aspect likely refers to its upgrade from an earlier version. A Dutch government document confirms this transition:
Vapors or mists may irritate the nose, throat, and lungs. Ingestion: Can cause burns to the digestive tract. nalco 3dt 449 msds new
: Keeps phosphate- and zinc-based chemistries soluble, which is critical for systems with high iron or aluminum carryover. Safety and Handling (SDS/MSDS Highlights)
Under EU 2023/2000, the phosphonate content is exempt from the 5% labeling threshold for corrosion, but the whole product carries the hazard. : Not typically required under general ventilation, but
: May cause irritation or serious eye/skin damage if not handled correctly. Fire : Generally not flammable or combustible.
Wash out mouth with water. Do not induce vomiting unless directed to do so by medical personnel. Seek immediate medical attention. Ingestion: Can cause burns to the digestive tract
Corrosive Liquid, N.O.S. (Contains Sodium Hydroxide / Phosphonates) Transport Hazard Class: Class 8 (Corrosive) Packing Group: II or III 15. Regulatory Information
Immediately flush eyes with plenty of water for at least 15 minutes. Seek immediate medical attention.