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

 

Check out my other items! Right Hand ( right handed person ) - Used Used RH VEMCO MD 612 V TRACK ( This units is very good for the Board size 32 x 42 TRACK Type Drafting Machine Model 612 Track Machin

 

Vintage original New York blasting machine detonator. Comes in good condition with minor used wear. Photos should tell the story. Displays well. Email with questions.

 

Vintage Hemmi Sun No. 250 Slide Ruler, made in Japan. Excellent condition with no chips or breaks. The cursor moves freely and has no cracks. Measures 12 5/8" long. Feel free to ask any questions.

 

Keith1138 Store Antique Dental/Dentistry Instrument Lot: Dentist~Surgery~Tooth~Teeth~Cavity~Pull

 

Antique dovetail wood box with a tag on the lid marked Fisher Scientific Company Pittsburgh, PA-St. Louis, MO. Eimer and Amend New York, NY., USA. The front latch is marked Eagle lock CO, and the box

 

Combined shipping offered on sticker. Any questions feel free to ask, thanks for looking,

 

Dynamite Blasting Machine Dupont # 50 Antique     The box is in good shape except for a chipped corner over to the screws. The leather handle is broken but the ends are there along with the screws.I

 

THIS IS A VERY NICE LOT OF 25 OLD COAL MINE STICKERS. THEY ARE IN LIKE NEW CONDITION. PAY PAL ACCEPTED AND WILL ONLY SHIP TO USA. THANKS FOR YOUR INTEREST AND HAPPY BIDDING. ***NO RESERVE***

 

Attention collectors! We offer Russian Soviet rare medical award medals. These are awarded to the best doctors. Starting bid only 49$. Free shipping worldwide. No reserve price!!!