Noun:

दहातु, पोटाश का आधारभूत तत्त्व, पोटैशियम,

potassium शब्द के हिंदी अर्थ का उदाहरण:

मॉयसाँ ने विशुद्ध हाइड्रोक्लोरिक अम्ल तथा दहातु तरस्विनिक के मिश्रण के वैद्युत्‌ अपघटन द्वारा यह तत्व प्राप्त किया था।

জজজ

ब्रोमीन के कुछ यौगिक, जैसे दहातु ब्रोमाइड, ओषधि के रूप में और फोटोग्राफी क्रिया में काम आते हैं।

पोटैशियम अथवा दहातु एक क्षार धातु है।

हाइड्रोफ्लोरिक अम्ल में दहातु तरस्विनिक (फ्लुओराइड) विलयित कर - 23° सें. पर सेल में अपघटन करने से धनाग्र पर तरस्विनी मुक्त होगी।

potassium's Usage Examples:

It was found, for instance, that a film of insoluble copper ferrocyanide, deposited in the walls of a porous vessel by the inward diffusion and meeting of solutions of copper sulphate and potassium ferrocyanide, would allow water to pass, but retained sugar dissolved in that liquid.

Here the other metal may be one, such as potassium, or two, such as potassium and sodium, and, in the latter case, the proportion between the two may vary continuously throughout wide limits.

It is usually made by distilling tartaric acid with potassium bisulphate at about zoo-250° C., the crude product being afterwards fractionated.

It is decomposed by heat into the oxide and water, and is soluble in ammonia but not in excess of dilute potassium hydroxide; this latter property serves to distinguish it from zinc hydroxide.

It may be prepared by the addition of potassium nitrite to an acetic acid solution of cobalt chloride.

It is insoluble in dilute acids, but is readily soluble in excess of potassium cyanide.

This acid may also be prepared by the electrolysis of concentrated sulphuric acid, and it is distinguishable from persulphuric acid by the fact that it immediately liberates iodine from potassium iodide.

The yellow precipitate obtained is washed with a solution of potassium acetate and finally with dilute alcohol.

On oxidation with potassium permanganate it is converted into acetyl urea, together with other products.

It is slightly soluble in potassium sulphide.

Synonyms:

K, atomic number 19, metallic element, sylvite, brine, langbeinite, kainite, seawater, sylvine, metal, carnallite, saltwater,

Antonyms:

nonmetallic, fresh water,