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LG-8526-100
GENERATOR,DIAZOMETHANE
 
 
Product No. Price Each Action
LG-8526-100 CALL  
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Description

(N-Methyl-N'Nitro-N-Nitrosoguanidine) MNNG produces diazomethane when treated with an aqueous alkalai. The co-distillation effected with this apparatus produces small quantities required for analytical purposes.

One millimole (147 mg) of nitrosoguanidine is transferred to the inner tube with 0.5mL of water to dissipate heat generated by the reaction.

Approximately 3mL of ether is measured into the outer tube and the generator is assembled using a Viton® O-ring ( LG-1022-552 ) and a size 35 pinch clamp ( LG-1045-112 ).

The lower part of the assembled apparatus is placed in an ice bath and 0.6 mL of 5 N sodium hydroxide is injected very slowly. A drop by drop addition is suggested to avoid excessive foaming and back pressure. The injection is made through the silicone septum using a syringe with a 22 gauge needle.

The generated diazomethane collects in the ether and can be used for gas chromatography, mass spectroscopy, and NMR studies. Supplied with clamp.

Note: Items marked CALL may have limited availability.

Properties
Approx. Overall Height x O.D. (mm): 205 x 25
GPI Thread: 13-425
O-Ring x Clamp Size: 120 x 35
LG-8526

Viton® is a registered trademark of Dupont Dow Elastomers.

Note: When working with diazomethane, use a fume hood and a safety shield.