Thiourea is also known as thiocarbamide. White, lustrous crystals with a density of 1.4 and a melting point of 180 degrees Celsius. Soluble in cold water. It's uses include - photography (removing sta

 

Item Description: VINTAGE JUSTRITE BRASS CARBIDE MINERS LAMP Vintage complete justrite brass carbide miners lamp. Top stamped MADE IN USA PAT NO 115123 JUSTRITE ON OFF. Bottom of lamp stamped UNITED S

 

This is a vintage ear eye throat kit it's old and has not been tested, The case is in fair shape.   Sold as as is, not tested and unsure if it works.  Please use the photo's as this is the item yo

 

VINTAGE 1940's TRIANGULATOR SLIDE RULE MAKES TRIGONOMETRY EASY POCKET SIZE Click image to enlarge Description 9/17    A terrific collectible - A 1940s 'TRIANGULATOR' SLIDE RULE!  'MAKES TRIGONOMET

 

Bausch & Lomb Optical Co. Rochester NY USA engraved on rim of this antique desk top map magnifying lens. Adjusts up and down to focus. Excellent condition. Lens is free of scratches and chips but

 

This is a large capacity continuous cooling mercury recovery retort, designed to purify your mercury while separating it from your gold. The water chamber is 9 long, 4" tall and 2" wide with a 1/2" ou

 

VINTAGE 1959 PICKETT & ECKEL N1006-T TRIG 6" SLIDE RULE W / CLIP LEATHER CASE ! Click to Enlarge Click to Enlarge Click to Enlarge Click to Enlarge Click to Enlarge Click to Enlarge Click to Enlar

 

Hi! This auction is for a beautiful Aireguide Barometer from the 50's to 1960's! As you can see in the photo's, this barometer is in excellent condition ( almost ) new condition. It appears to be work

 

Very nice K & E Slide Rule with hard shell case, not many like this and am sending a couple slide rule manuals. Look at pictures and questions, just email. Shipping is $5.00 anywhere in the U.S.

 

This lab glass ribbed funnel is in good working condition with no chips or cracks. The funnel is 9" tall and 7.25" across the top. Posted with eBay Mobile