- Definition of Na2S
Na2S, also known as sodium sulfide, is a chemical substance with a molar mass of 78.0465 g/mol. This molecule consists of two sodium atoms (Na) and one sulfur atom (S). Na2S has an ionic structure composed of two positive sodium ions and one negative sulfide ion.
- Properties of Na2S
2.1 Physical Properties of Na2S
Na2S is a solid substance, which is yellow or reddish-brown in color. This substance does not have a distinctive smell. The PH of Na2S typically ranges from 9-11, indicating its alkaline nature.
2.2 Chemical Properties of Na2S
Na2S has the ability to react with metals, releasing sulfide and forming sodium salts. It can also react with acids to form sodium salts and sulfide.
- Common Chemical Equations involving Na2S
Na2S can react with metals such as Fe, Cu, Zn, Al, Mn to form sodium salts and metal sulfides. It can also react with acids like HCl, H2SO4, HNO3, H3PO4, H2CO3 to form sodium salts and sulfide.
- Synthesis of Na2S
4.1 Laboratory Synthesis of Na2S
Na2S can be synthesized by heating sodium with sulfur.
4.2 Industrial Synthesis of Na2S
In industry, Na2S is commonly produced by the thermal decomposition of sodium thiosulfate salt or by reacting sodium with sulfur at high temperatures.