# How safe is gallium?

**URL:** <https://boards.straightdope.com/t/how-safe-is-gallium/227607>\
**Category:** Factual Questions\
**Created:** [February 5, 2004, 3:01am UTC](https://boards.straightdope.com/t/how-safe-is-gallium/227607 "2004-02-05T03:01:28Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Mundo](https://avatars.discourse-cdn.com/v4/letter/m/bc8723/32.png) [@Mundo](https://boards.straightdope.com/u/Mundo)\
**Post date:** [February 5, 2004, 3:01am UTC](https://boards.straightdope.com/t/how-safe-is-gallium/227607/1 "2004-02-05T03:01:28Z")

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I’ve always wanted to play with gallium since it melts in your mouth _and_ in your hands, and through the wonders of birthday money and ebay I now find myself in a position to get some. There’s one problem, I know nothing about it as far as safety is concerned. Is it safe to hold or is that a bad idea like with mercury? Do I have to scrub my hands raw after holding it or where protective gear? As much as I like the idea of playing with molten metal in my hands it’s definitley not worth poisoning myself over.

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**Author:** ![Eleusis](https://avatars.discourse-cdn.com/v4/letter/e/f4b2a3/32.png) [@Eleusis](https://boards.straightdope.com/u/Eleusis)\
**Post date:** [February 5, 2004, 3:05am UTC](https://boards.straightdope.com/t/how-safe-is-gallium/227607/2 "2004-02-05T03:05:43Z")

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> [@](#):
>
> ```
> ****SECTION 3 - HAZARDS IDENTIFICATION****
> 
> EMERGENCY OVERVIEW
> 
> ```
> 
> Irritating to eyes, respiratory system and skin.Moisture  
> sensitive.The toxicological properties of this material have not been  
> fully investigated.
> 
> Potential Health Effects  
> Eye:  
> Causes eye irritation.  
> Skin:  
> Causes skin irritation. May be harmful if absorbed through the skin.  
> The toxicological properties of this material have not been fully  
> investigated. May cause contact dermatitis.  
> Ingestion:  
> May cause gastrointestinal irritation with nausea, vomiting and  
> diarrhea. The toxicological properties of this substance have not  
> been fully investigated. May be harmful if swallowed.  
> Inhalation:  
> Causes respiratory tract irritation. The toxicological properties of  
> this substance have not been fully investigated. May be harmful if  
> inhaled.  
> Chronic:  
> May cause bone marrow abnormalities with damage to blood forming  
> tissues. Administration of gallium to humans has caused metallic  
> taste, skin rashes, and bone marrow depression.

[http://www.acialloys.com/msds/ga.html](http://www.acialloys.com/msds/ga.html)

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**Author:** ![Mundo](https://avatars.discourse-cdn.com/v4/letter/m/bc8723/32.png) [@Mundo](https://boards.straightdope.com/u/Mundo)\
**Post date:** [February 5, 2004, 3:13am UTC](https://boards.straightdope.com/t/how-safe-is-gallium/227607/3 "2004-02-05T03:13:20Z")

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Darn, there go all my hopes and dreams. Thank you for your helpful and incredibly prompt response Eleusis.

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**Author:** ![antechinus](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@antechinus](https://boards.straightdope.com/u/antechinus)\
**Post date:** [February 5, 2004, 6:36am UTC](https://boards.straightdope.com/t/how-safe-is-gallium/227607/4 "2004-02-05T06:36:00Z")

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How about [url=http://physchem.ox.ac.uk/MSDS/WO/woods\_metal.html]Wood’s metal[/url, which has a mp of 66[sup]o[/sup]C.

Not very toxic but can still be melted with hot water.

I’ll see if I can find a similar alloy without the Cd.

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**Author:** ![antechinus](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@antechinus](https://boards.straightdope.com/u/antechinus)\
**Post date:** [February 5, 2004, 6:41am UTC](https://boards.straightdope.com/t/how-safe-is-gallium/227607/5 "2004-02-05T06:41:51Z")

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[Woods metal](http://physchem.ox.ac.uk/MSDS/WO/woods_metal.html)  
[Cerrobend](http://www.grantmfg.com/Data%20Sheets/158.html)

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**Author:** ![Urban\_Ranger](https://avatars.discourse-cdn.com/v4/letter/u/e9c0ed/32.png) [@Urban\_Ranger](https://boards.straightdope.com/u/Urban_Ranger)\
**Post date:** [February 5, 2004, 7:17am UTC](https://boards.straightdope.com/t/how-safe-is-gallium/227607/6 "2004-02-05T07:17:03Z")

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[Galinstan looks like fun](http://www.geratherm.com/en/technologie_galinstan)

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**Author:** ![Dick\_Tater](https://avatars.discourse-cdn.com/v4/letter/d/b77776/32.png) [@Dick\_Tater](https://boards.straightdope.com/u/Dick_Tater)\
**Post date:** [February 5, 2004, 11:27am UTC](https://boards.straightdope.com/t/how-safe-is-gallium/227607/7 "2004-02-05T11:27:46Z")

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> [@Urban Ranger](#):
>
> [Galinstan looks like fun](http://www.geratherm.com/en/technologie_galinstan)

From their safety sheet:

> [@](#):
>
> Substances to be avoided: Chlorine, bromine, metals, light metal alloys, aluminium (amalgam formation)

Amalgam formation, eh? I wouldn’t gargle it. 😃

**"Barkeeper, give me your strongest stuff!" - "Here, this one will dissolve your fillings. Literally."**
