Sodium perborate is a white, granular solid which decomposes in an aqueous solution to hydrogen peroxide and sodium borate. Active oxygen content 10%. Melting point is 63 degrees Celsius. It's used in

 

Appears to have have been used! Purchased at an estate sale in a plastic bag. The bag is split on the side BUT everything in it seems unused. Fullerton Circular Slide rule 1450. Please see pics for co

 

jamesjolicoeur Store This display is named Lilly. Used in a doctors office to explain behaviors for patients. It's an electrical item powered by four double a batteries and lights up along the spinal

 

Vintage 50's-60's AIRGUIDE air guide Desktop Weather Station barometer thermometer Humidity/ hygrometer NICE VINTAGE 50'S EARLY 60'S AIRGUIGE WEATHER STATION IN GOOD WORKING CONDITION. MEASURES 4 3/4"

 

This is a Vintage B-D Yale 2cc Hypodermic Syringe Glass Becton-Dickinson Kit. It is in great condition. There are 2 needle containers with needles, and 1 Syringe container with Syringe and 2 Container

 

Engineering Technology Blasting Crimpers, used, but in excellent condition, still very sharp and easily pliable. Has a straight edge screwdriver head and a Phillips head screwdriver on each leg.

 

Up for auction are 3 New Jersey Zinc Company items: •1 – Horsehead, logo for NJZ – 2 1/8” tall •1 – NJZ 125th Anniversary keychain – 1848-1973 with horse head on one side and other side

 

Offered here is a ten page book of original Field Notes for a survey performed on the Colonel Buford Lode, located n the Griffith Mining District of Clear Creek County, Colorado. Dated an early 1887.

 

I have a used Vintage Coal Miners Anemometer Used and Carried buy a mine Examiner to measure the air velocity in underground coal mines ; It is made by dais Manufacture a well known maker of these ane

 

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