Nalco 3dt 449 Msds New May 2026
| PPE Item | Old Requirement | New Requirement | | :--- | :--- | :--- | | Gloves | Nitrile, 8 mil | , 15 mil minimum. (Nitrile degrades within 2 hours) | | Goggles | Standard splash | Full face shield over chemical goggles | | Apron | Tyvek | Neoprene apron with sleeves | | Respirator | None for normal use | NIOSH approved with acid gas cartridge (P100) if misting |
Product Identifier: NALCO® 3DT 449 Document Type: Material Safety Data Sheet (MSDS) / Safety Data Sheet (SDS) Status: New/Current Revision Introduction In the industrial water treatment landscape, NALCO 3DT 449 is recognized as a high-performance scale and deposit control agent, primarily used in cooling water systems, boilers, and once-through systems. As of its latest MSDS release (often abbreviated as the "new" sheet), critical updates have been made regarding hazard classification, first-aid measures, and ecological toxicity, aligning with the Globally Harmonized System (GHS) Revision 7 & 8. nalco 3dt 449 msds new
(new data): Nitrile gloves fail at 90 minutes. Change double-gloved nitrile every 60 minutes if butyl is unavailable. Section 8: Physical and Chemical Properties (New Measured Values) The new MSDS includes retested values: | PPE Item | Old Requirement | New
A: No. The technical data sheet (TDS) handles dosage (typically 50–200 ppm). The MSDS only covers safety. (new data): Nitrile gloves fail at 90 minutes
A: Per new Section 10 – No. This generates chlorine gas and heat. Always add biocides to the cooling tower water before adding 3DT 449.
| Mode | UN Number | Proper Shipping Name | Packing Group | | :--- | :--- | :--- | :--- | | Road/Rail | UN3265 | Corrosive liquid, acidic, organic, n.o.s. | II | | Sea (IMDG) | UN3265 | Same | II | | Air (IATA) | UN3265 | Forbidden on passenger aircraft | II |