# Name of this glassware?

Could you tell me the name of this glassware? I found it in the laboratory with a label that says "container of stoichiometry", but I have not found more information about it, especially about the uses that it could give.

Thank you!

• Could you please describe what the glass tube inserted through the large screw cap looks like inside (or where does it lead)? It's hard to see on the photo due to the glare. – andselisk Jan 23 at 9:58
• To follow-up on @andselisk's comment, can you just remove it and take a separate picture of it, please? – Zhe Jan 23 at 14:21
• Looks somewhat like this: chemglass.com/… – Zhe Jan 23 at 14:38

• With regard to the label reference to stoichiometry, it could have been used to sublimate $\ce{I2}$ for use in iodometric titrations? – Andrew Jan 26 at 14:29