Noun:

டங்ஸ்டேட்,

tungstate தமிழ் அர்த்தத்தின் உதாரணம்:

கால்சியம் ஃவுளூரைடு, கால்சியம் டங்ஸ்டேட், ஸ்ட்ரான்சியம் மாலிப்டேட் ஆகிய பொருட்களால் செய்யப்படும் எதிர்மின்னிக்கருவிகளில் புறவூட்டுப் பொருளாக தெர்பியம் பயன்படுகின்றது.

முன்னதாக துத்தநாக டங்ஸ்டேட் வசமிருந்த இந்த சாதனையை துத்தநாக சயனைடு விஞ்சியது.

tungstate's Usage Examples:

Because he lasted tungstates fluorspar and but he was.

Of the impurities of the ore the wolframite (tungstate of iron and manganese) is the most troublesome, because on account of its high specific gravity it cannot be washed away as gangue.

Wolfram (tungstate of iron and manganese) occurs in some of the states, notably in New South Wales, Victoria, Tasmania and Queensland.

Graham obtained a colloidal tungstic acid by dialysing a dilute solution of sodium tungstate and its equivalent of hydrochloric acid; on concentrating in a vacuum a gummy product is obtained, which still remains soluble after heating to 200°, but it is converted into the trioxide on heating to redness.

tungstates fluorspar and but he was.

It dissolves in potash, giving potassium tungstate and hydrogen, and is readily oxidized to the trioxide.

Graham obtained a colloidal tungstic acid by dialysing a dilute solution of sodium tungstate and its equivalent of hydrochloric acid; on concentrating in a vacuum a gummy product is obtained, which still remains soluble after heating to 200°, but it is converted into the trioxide on heating to redness.

A crystalline form was obtained by Debray as olive-green prisms by igniting a mixture of sodium tungstate and carbonate in a current of hydrochloric acid gas, and by Nordenskjold by heating hydrated tungstic acid with borax.

Of the salts, the normal tungstates are insoluble in water with the exception of the alkaline tungstates; they are usually amorphous, but some can be obtained in the crystalline form.

TUNGSTEN [[[symbol]] W, atomic weight 184 o (016)], a metallic chemical element found in the minerals wolfram, an iron and manganese tungstate, scheelite, a calcium tungstate, stolzite, a lead tungstate, and in some rarer minerals.

By partial reduction of the tungstates under certain conditions products are obtained which are insoluble in acids and alkalis and present a bronze-like appearance which earned for them the name of tungsten bronzes.

Tungstic acid, H 2 W0 4, is obtained as H 2 W0 4 H 2 0 by precipitating a tungstate with cold acid; this substance has a bitter taste and its aqueous solution reddens litmus.

To remove it, Oxland fuses the ore with a certain proportion of carbonate of soda, which suffices to convert the tungsten into soluble alkaline tungstate, without producing noteworthy quantities of soluble stannate from the oxide of tin; the tungstate is easily removed by treatment with water.

Synonyms:

salt,

Antonyms:

dull,