Stannous chloride is a white, crystalline solid having a density of 3.95 and a melting point of 247 degrees Celsius. Soluble in water and alkalines. It's uses include - ceramics, sensitizing agent for

 

New Made in The U.S.A. Folding sluice box lightweight approx 5.8Lbs approx 51 in Long x 9in wide removable flair, folds up and can fit in a 5 gallon bucket or backpack, Deep V ribbed rubber matting, a

 

TRIBRACH WITH ADAPTER. I GOT THIS IN A BOX AT AN AUCTION AND KNOW NOTHING ABOUT IT. A FRIEND WHO DOES SURVEYING TOLD ME WHAT IT IS. COULD NOT FIND A NAME ON IT.

 

If you collect or restore old radios, crystal sets, early scientific apparatus, vintage test equipment, military surplus, or other unique old technical items, keep me on your favorite seller list. I a

 

We have never used this geiger counter and the battery is old so we have no idea if it works I have tried to take plenty of pictures It seems to be intact and with a new battery it should work but we

 

I remember my father using this when he worked in one of our local weaving sheds (in the days when they existed!!). It is a very nice piece-glass for viewing fabric faults. The item is manufactured fr

 

FOR SALE IS EXCELLENT CONDITION RIEFLER OF GERMANY DRAFTING / DRAFTSMAN SET THIS IS COMPLETE AND IN EXCELLENT CONDITION 2 EXTRA SCLAE RULERS ARE INCLUDED ALL ARE HOUSED IN A NICE SECURE METAL CASE THA

 

JOHN CASARTELLI SCALES MADE IN MANCHESTER ENGLAND BOXED OUNCES PER SQ YARD & GRAMMES PER SQ METRE PLEASE VIEW THE PICTURES FOR THE ITEM INVOLVED I HAVE NOT CLEANED THIS, THE MARKS ON THE FRONT WIL

 

WE ONLY CHARGE ONCE FOR MICROSCOPE SLIDES SHIPPING COST. REGARDLESS OF HOW MANY YOU PURCHASE.....PLEASE SEE BELOW ANTIQUE MICROSCOPE SLIDE - BRAKE FERN - S.B. IN GOOD CONDITION. SIZE: 3" x 1".... 75mm

 

A Collection of Circular Slide Rules and Calculators. See photos for what is included. All are in very good condition except the Range Computer which has 3 internal cracks in the back plastic disk. So