One is a hard type of iron ore known as ferrous oxide. From Wordnik.com. Reference
Those derived from the lower oxide, known as ferrous salts, are generally pale and greenish. From Wordnik.com. [A Text-book of Assaying: For the Use of Those Connected with Mines.] Reference
A greyish drab may be got by adding ferrous sulphate. From Wordnik.com. [Vegetable Dyes Being a Book of Recipes and Other Information Useful to the Dyer] Reference
ferrous sulphate is the most familiar ferrous compound. From Wordnik.com. [An Elementary Study of Chemistry] Reference
Whatever ferrous metal a magnet touches becomes similarly polarized. From Wordnik.com. [Admiral Cheng Ho's Lost Compass] Reference
Kazakhstan oil and oil products 58\%, ferrous metals 24\%, chemicals. From Wordnik.com. [The 2004 CIA World Factbook] Reference
Add 1 c.c. of a one per thousand aqueous solution of ferrous sulphate. From Wordnik.com. [The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.] Reference
Invariably there is among these a formula for ferrous oxalate developer. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
With ferrous sulphate darker olives are obtained (8 per cent ferrous sulphate). From Wordnik.com. [Vegetable Dyes Being a Book of Recipes and Other Information Useful to the Dyer] Reference
In a similar way the conversion of ferrous chloride into ferric chloride may be written. From Wordnik.com. [An Elementary Study of Chemistry] Reference
To each tube, add 1/2 teaspoonful of ferrous sulphate solution and let the tubes stand. From Wordnik.com. [School and Home Cooking] Reference
Thus ferrous chloride treated with chlorine or aqua regia is changed into ferric chloride. From Wordnik.com. [An Elementary Study of Chemistry] Reference
This substance bears the same relation to ferrous sulphide that hydrogen dioxide does to water. From Wordnik.com. [An Elementary Study of Chemistry] Reference
The former reaction indicates that it contains no ferrous salt, and the latter no basic oxalate. From Wordnik.com. [Photographic Reproduction Processes] Reference
It should be tested from time to time for the ferrous salt with a solution of potassium ferricyanate. From Wordnik.com. [Photographic Reproduction Processes] Reference
What change in color did you observe when the ferrous sulphate solution was added to the tea infusion?. From Wordnik.com. [Human Foods and Their Nutritive Value] Reference
Where iron is present in the form of pyrites, or ferrous silicate, it does not seem to cause reversion. From Wordnik.com. [Manures and the principles of manuring] Reference
~ Ferric salts are usually obtained by treating an acidified solution of a ferrous salt with an oxidizing agent. From Wordnik.com. [An Elementary Study of Chemistry] Reference
If it does not contain any ferrous oxalate it can be used by adding to it a little of the iron chlorate solution. From Wordnik.com. [Photographic Reproduction Processes] Reference
They not only have formulas similar to the ferrous salts, but resemble them in many of their chemical properties. From Wordnik.com. [An Elementary Study of Chemistry] Reference
Exports -- commodities: ferrous and nonferrous metals, chemicals, machinery and transport equipment, food products. From Wordnik.com. [The 1999 CIA Factbook] Reference
The manganese peroxide dissolves very readily, transforming its equivalent of ferrous sulphate into ferric sulphate. From Wordnik.com. [Scientific American Supplement, No. 401, September 8, 1883] Reference
Ukraine: ferrous and nonferrous metals, fuel and petroleum products, machinery and transport equipment, food products. From Wordnik.com. [The 2001 CIA World Factbook] Reference
Ukraine coal, electric power, ferrous and nonferrous metals, machinery and transport equipment, chemicals, food processing. From Wordnik.com. [The 2004 CIA World Factbook] Reference
Maercker has found that in moor soils containing ferrous sulphate, no nitrates, or mere traces of nitrates, could be found. From Wordnik.com. [Manures and the principles of manuring] Reference
Ukraine: coal, electric power, ferrous and nonferrous metals, machinery and transport equipment, chemicals, food processing. From Wordnik.com. [The 2001 CIA World Factbook] Reference
Industries: coal, electric power, ferrous and nonferrous metals, machinery and transport equipment, chemicals, food processing. From Wordnik.com. [The 2001 CIA World Factbook] Reference
~ The changes which take place when a ferric salt is converted into a ferrous salt are the reverse of the ones just described. From Wordnik.com. [An Elementary Study of Chemistry] Reference
When oxygen, in a free or gaseous state, comes into contact with iron, it produces ferrous oxide, which is recognized as rust. From Wordnik.com. [Electricity for Boys] Reference
Ukraine ferrous and nonferrous metals, fuel and petroleum products, chemicals, machinery and transport equipment, food products. From Wordnik.com. [The 2004 CIA World Factbook] Reference
Exports - commodities: ferrous and nonferrous metals, fuel and petroleum products, machinery and transport equipment, food products. From Wordnik.com. [The 2001 CIA World Factbook] Reference
Slovenia: ferrous metallurgy and rolling mill products, aluminum reduction and rolled products, lead and zinc smelting, electronics. From Wordnik.com. [The 2001 CIA World Factbook] Reference
Industries: ferrous metallurgy and rolling mill products, aluminum reduction and rolled products, lead and zinc smelting, electronics. From Wordnik.com. [The 1996 CIA Factbook] Reference
Industries: machine building and metal working, food processing, chemicals, textiles, building materials, ferrous and nonferrous metals. From Wordnik.com. [The 1995 CIA World Factbook] Reference
Industries: machine building and metal working, food processing, chemicals, textiles, construction materials, ferrous and nonferrous metals. From Wordnik.com. [The 1999 CIA Factbook] Reference
LearnThatWord and the Open Dictionary of English are programs by LearnThat Foundation, a 501(c)3 nonprofit.
Questions? Feedback? We want to hear from you!
Email us
or click here for instant support.
Copyright © 2005 and after - LearnThat Foundation. Patents pending.