|Series||Canada Mines Branch Research Report -- 262|
|Contributions||Kerby, R.C., Hughson, M.R.|
The number of electrons in each of Sodium's shells is [2, 8, 1] and its electron configuration is [Ne] 3s 1. The sodium atom has a radius of pm and a Van der Waals radius of pm. Sodium was discovered and first isolated by Sir Humphrey Davy in In its elemental form, sodium has a silvery-white metallic appearance. sodium sulfide, hydrated >98 (hydrated with >30% water of crystallization) NOTE: Readily decomposed by heat, acids to produce hydrogen sulfide Contact with air produces sodium thiosulfate sodium carbonate SWALLOWED For advice, contact a Poisons Information Centre or a doctor at once. Sodium sulfide, anhydrous is a yellow to brick red crystalline mass or fused solid with an odor of rotten eggs. If exposed to moist air it is liable to spontaneous heating and may cause ignition of nearby combustible material. Calorimetric Studies on the Thermal Stability of 2-Nitrotoluene Explosives with Incompatible Substances. Industrial & Engineering Chemistry Research , 58 (29), DOI: /9bCited by:
Sodium sulfide is the chemical compound with the formula Na 2 S, or more commonly its hydrate Na 2 S9H 2 the anhydrous and the hydrated salts are colorless solids, They are water-soluble, giving strongly alkaline solutions. When exposed to moist air, Na 2 S and its hydrates emit hydrogen sulfide, which smells like rotten commercial samples are specified as Na 2 SxH 2 O Chemical formula: Na₂S. SAFETY DATA SHEET Sodium Sulphide Hydrate Page 1 Issued: 24/01/ Revision No: 1 1. IDENTIFICATION OF THE SUBSTANCE / PREPARATION AND OF THE COMPANY / UNDERTAKING Trade names: Sodium Sulphide Hydrate Application of the substance/ the preparation: The substance is a source of sulphide and is used in industrial applications. The thermal decomposition of sodium bicarbonate, a candidate material for Ilue gas desulfunzation. has been investigated over the temperature range of °F K) and over the particle. SAFETY DATA SHEET Creation Date Feb Revision Date Jan Revision Number 3 1. Identification Product Name Sodium sulfide nonahydrate Cat No.: S, S CAS-No Synonyms No information available Recommended Use Laboratory chemicals. Uses advised against Not for food, drug, pesticide or biocidal product use Details of the supplier of the safety data .
Kinetics of dehydration of sodium hydroxide melt upon evacuation was studied in relation to the temperature. The kinetic parameters of thermal decomposition of NaOH were evaluated. Methods for dehydration of the hydroxide melt were by: • Decomposition temperature: Not known. • Viscosity: Not known. _____ _____ STABILITY AND REACTIVITY Chemical Stability: Mixing with acids liberates poisonous hydrogen sulfide. Mixing with strong oxidiz-ers causes a violent reaction. Mixing with strong alkalies may File Size: 1MB. double walled vessel equipped with a stirrer well defined crystals of sodium sulfide hydrate salts were obtained (fig. 1). The required cooling profile was determined from the solubility lines for the nonahydrate and pentahydrate forms of sodium sulphide as depicted in the phase diagram . By cooling a warm solution of sodium sulfide. The kinetics of the thermal decomposition of molten sodium nitrate have been studied as a function of temperature in the range –°. The effect of replacing the air over the reactant by argon has been examined. From these measurements, it is concluded that Cited by: