Sep 24 2013

Caution: Water

New labels for the water bottles in the lab. You can never be too safe, kids.

Just…perhaps no ingesting in very large quantities, okay?



(DI Water, Pure Water, Dihydrogen Oxide)

Target Organs: N/A

PRECAUTIONARY MEASURE: GENERALLY CONSIDERED SAFE. Avoid contact with materials which are water reactive. Follow precautionary measures for other materials which are in use.

SYMPTOMS OF EXPOSURE: Ingestion of very large quantities can cause convulsions, tremors, muscle contractions, narcosis, diarrhea, and fever due to dilution of electrolytes in the body.

INSTRUCTIONS FOR IMMEDIATE AID IN CASE OF EXPOSURE: Call a Physician. Determine other causes of illness. If victim is not breathing, give artificial respiration. If breathing is difficult, give oxygen. Seek medical attention to treat symptoms.

SPILL RESPONSE PROCEDURES: Only appropriately trained personnel should respond to spills. Use proper response procedures and maintain appropriate level of fire protection. Dispose of as required by federal, state and local regulations.

CONTAINER HANDLING and STORAGE: Store away from water reactive materials.

MSDS REFERENCE: Refer to Material Safety Data Sheet for more information about this chemical.


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  1. 1

    The labels for sea sand and sucrose are even more amusing.

  2. 2

    In case of skin contact, flush immediately with deioni — no, wait a minute.

  3. 3

    Stuff like this just gives the anti-regulation nuts more ammunition. It’s about as silly as the 3-foot stepladder I bought that had OSHA-required “Don’t stand here” stickers on the top and second steps, making it into a 1-foot ladder.

  4. 4

    Or was that intended as a joke? I’m feeling a little dense this morning. I’ve probably not ingested sufficient DHMO infused with caffeine.

  5. 5

    Have you had appropriate spill response training, or are you going to have to go get a specialist if you accidentally drop some on the floor?


    But, in all seriousness, I’ve had discussions/debates/arguments with people who sincerely believed drinking RO/DI water would somehow kill you…

  6. 6

    Avoid contact with materials and animals that are water reactive, such as Mogwai.

    There I fixed it.

  7. 7

    “maintain appropriate level of fire protection”! Thanks for the laugh, I needed it. Now I’ll have to look up the MSDS…

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