On the thermo-electric action of metals and liquids / by George Gore.

  • George Gore
Date:
1871
Catalogue details

Licence: Public Domain Mark

Credit: On the thermo-electric action of metals and liquids / by George Gore. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    No. 1. 2. lodate of Potassium. Value of ~ . Deflection. Grains. i 100 diluted to 12 ozs. ’0064 j ... Saturated solution (undiluted) -0100 ] Hot plate negative. Both plates much stained by for- mation of iodide of copper. Acid Carbonate of Potassium. Value of No. Grains. Deflection. 1. .. .. 60 diluted to 20 ozs. •0040) 2. .... 100 yy •0170 3. .... 200 V •0497 Hot plate positive. The 4. .... 400 yy yy •0818 liquid on evaporation was 6. .... 600 yy yy •1329 >green with dissolved copper. 6. ... . 800 yy yy •1978 Liquid alkaline. Hot plate 7. .... 1000 yy yy •2441 alone much tarnished. 8. .... 2000 9f yy •4210 9. .... Saturated solution (imdiluted) -5461 ^ Carbonate of Potassium. Value of No, Grains. Deflection. 1. .... 60 diluted to 20 ozs. •0122T 2. 100 yy yy •0382 3. .... 200 yy yy •1770 4. .... 400 yy yy •3719 5. .... 800 yy yy •7521 : Hot plate positive 0. .... 1000 yy yy 2 2400 7. .... 2400 yy yy 3-7708 8. .... 3200 yy yy •4367 9. .... Saturated solution (undiluted) -4031^ Acid Sulphate of Potassium. Saturated solution (undiluted). Value of deflection -1047, negative. Bichromate of Potassium. Hot plate* Grain.s diluted No. to 20 oxH. 1 295 2. .... 590 Value of Deflection. •0786 I •1644 f Hot metal positive. Grains diluted Na to 20 ozB. 1 249-8 2 499-G Chrome Alum. Value of Deflection. •0019 I Hot metal negative. Li- •00G4 ( quid of acid reaction. Aqueous Ammonia. Copper in a mixture of 4 ounces of water and 400 grains of aqueous ammonia at 180° Fahr. was electro-positive to copper in the same mixture at 60® Fahr.