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Pages in category "Gases with color" The following 25 pages are in this category, out of 25 total. This list may not reflect recent changes. B. Bromine;
Colors of various gases Name Formula Color Hydrogen: H 2: colorless Oxygen: O 2 pale blue Ozone: O 3 pale blue Fluorine: F 2 pale yellow Chlorine: Cl 2 greenish yellow Bromine: Br 2 red/brown Iodine: I 2 dark purple Chlorine dioxide: ClO 2 intense yellow Dichlorine monoxide: Cl 2 O brown/yellow Nitrogen dioxide: NO 2 dark brown ...
Properties. Nitrogen dioxide is a reddish-brown gas with a pungent, acrid odor above 21.2 °C (70.2 °F; 294.3 K) and becomes a yellowish-brown liquid below 21.2 °C (70.2 °F; 294.3 K). It forms an equilibrium with its dimer, dinitrogen tetroxide ( N2O4 ), and converts almost entirely to N2O4 below −11.2 °C (11.8 °F; 261.9 K).
Characteristics[edit] Neon is the second-lightest noble gas, after helium. Like other noble gases, neon is colorless and odorless. It glows reddish-orange in a vacuum discharge tube. It has over 40 times the refrigerating capacity (per unit volume) of liquid helium and three times that of liquid hydrogen. [3]
Noble gases have eight electrons in their outermost shell, except in the case of helium, which has two. The noble gases are colorless, odorless, tasteless, and nonflammable under standard conditions.
Hydrogen sulfide is a chemical compound with the formula H 2 S.It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs.
Chlorine is a toxic gas that attacks the respiratory system, eyes, and skin. Because it is denser than air, it tends to accumulate at the bottom of poorly ventilated spaces. Chlorine gas is a strong oxidizer, which may react with flammable materials.
At room temperature, it is a colourless gas, like all of the hydrogen halides except hydrogen fluoride, since hydrogen cannot form strong hydrogen bonds to the large and only mildly electronegative iodine atom. It melts at −51.0 °C and boils at −35.1 °C.
It is a colorless, odorless, tasteless noble gas that occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. Krypton is chemically inert . Krypton, like the other noble gases, is used in lighting and photography .
Dinitrogen tetroxide. Full structural formula. Space-filling model. Nitrogen dioxide at −196 °C, 0 °C, 23 °C, 35 °C, and 50 °C. ( NO. 2) converts to the colorless dinitrogen tetroxide ( N. 2O. 4) at low temperatures, and reverts to NO. 2 at higher temperatures.