This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 Excerpt: ...with a platinum wire. The residue will be of a reddish brown to grey colour, but must not be black, as that would indicate the presence of carbon. Cool, weigh, and calculate the percentage of ash. Experiment 4.--To Determine the Moisture.--Dry a pair of watch glasses and a clip in a water-oven (Fig. 21), cool in ...
Read More
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 Excerpt: ...with a platinum wire. The residue will be of a reddish brown to grey colour, but must not be black, as that would indicate the presence of carbon. Cool, weigh, and calculate the percentage of ash. Experiment 4.--To Determine the Moisture.--Dry a pair of watch glasses and a clip in a water-oven (Fig. 21), cool in desiccator, and weigh carefully; introduce into one of the glasses about 20 grs. of the finely powdered coal and take the exact weight. Put the glasses, clip, and coal, back into the water-oven, and maintain at a temperature of 100 C. for 1 hour, leaving the See note 2, Appendix A. coal uncovered so that the moisture may escape. Remove from oven, and cover the coal with the other watch glass, and put on the clip. Cool in desiccator and reweigh. Compare with former weighing and calculate percentage of moisture. Return the whole to the water-oven, and continue the drying for half an hour longer, or until the weight is constant. If left too long, however, the weight may increase, due to the oxidation of Fe S2 to FeS04. Experiment 5.--Estimation of Sulphur in Coal.--Weigh out accurately 20 grs. of the finely powdered coal, 260 grs. of pure sodium chloride (Na Cl), 135 grs. of pure potassic nitrate (K N03), and 5 grs. of sodium carbonate ( Na2 C03). Dry these substances in a wateroven for half an hour, before weighing, mix well together, and half fill a porcelain crucible with the mixture. Heat over a Bunsen burner until the contents have deflagrated and become white, then add more of the mixture and ignite until the whole is deflagrated. Care must be taken during this part of the experiment that none of the contents of the crucible get on to the upper edge, or creep down the outside of the crucible, or a considerable amount of sulphur may be absorbed fr...
Read Less
Add this copy of Practical Metallurgy; an Elementary Text-Book for the to cart. £16.25, new condition, Sold by Books2anywhere rated 5.0 out of 5 stars, ships from Fairford, GLOUCESTERSHIRE, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of Practical Metallurgy; an Elementary Text-Book for the to cart. £17.13, new condition, Sold by Paperbackshop International rated 5.0 out of 5 stars, ships from Fairford, GLOS, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of Practical Metallurgy; an Elementary Text-book for the to cart. £22.55, new condition, Sold by Ria Christie Books rated 5.0 out of 5 stars, ships from Uxbridge, MIDDLESEX, UNITED KINGDOM, published 2022 by Legare Street Press.
Add this copy of Practical Metallurgy; an Elementary Text-Book for the to cart. £27.58, new condition, Sold by Books2anywhere rated 5.0 out of 5 stars, ships from Fairford, GLOUCESTERSHIRE, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of Practical Metallurgy; an Elementary Text-Book for the to cart. £29.05, new condition, Sold by Paperbackshop International rated 5.0 out of 5 stars, ships from Fairford, GLOS, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of Practical Metallurgy; an Elementary Text-book for the to cart. £20.00, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Practical Metallurgy; an Elementary Text-book for the to cart. £29.13, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
