Nalco 77225 Safety Data Sheet 2021 < Extended >

This section is practical for industrial settings.

Personal precautions: Evacuate non-essential personnel. Use full PPE (acid-resistant suit, face shield, rubber boots).

Environmental precautions (2021 emphasis): Prevent entry into sewers, surface water, or groundwater. Zinc is particularly toxic to fish at low ppb levels. The 2021 SDS adds a stronger statement: “Notify relevant authorities if a significant spill enters waterways,” reflecting updated EPA/REACH notification thresholds. nalco 77225 safety data sheet 2021

Cleaning methods:

The 2021 revision provides robust and specific first-aid protocols. This section is practical for industrial settings

| Mode | Proper Shipping Name | UN Number | Class | Packing Group | Marine Pollutant | | --- | --- | --- | --- | --- | --- | | Road (DOT) | Corrosive liquid, acidic, inorganic, n.o.s. (phosphoric acid solution) | UN3264 | 8 | III | No (but zinc is environmentally hazardous) | | Sea (IMDG) | Same | UN3264 | 8 | III | Yes (Environ. Hazardous – zinc) | | Air (IATA) | Same | UN3264 | 8 | III | No |

Change in 2021: The IMDG Code amendment 40-20 (effective 2021) requires “Environmentally Hazardous Substance” marking for zinc-containing shipments >5 L. Ensure your 2021 SDS includes this marking note. The 2021 revision provides robust and specific first-aid

The 2021 revision aligns with GHS Rev. 8 or equivalent. According to the 2021 NALCO 77225 SDS, the product is classified as:

What changed from pre-2021 versions? Earlier SDS versions sometimes lacked the explicit “Category 1C” sub-designation for skin corrosion. The 2021 update provides more granularity, helping safety professionals select the exact type of chemical-resistant glove (e.g., butyl rubber vs. nitrile thickness).

2021 critical update: Several US states (e.g., CA Proposition 65) added zinc oxide to the list of chemicals known to cause reproductive toxicity. The 2021 SDS may include a Prop 65 warning for California users.