Sodium sulfide is the chemical compound with the formula Na2S, or more commonly its hydrate Na2S\u00b79H2O. Both are colorless water-soluble salts that give strongly alkaline solutions.<\/p>\n
Chemical formula\uff1aNa2S<\/p>\n
Molar mass\uff1a 78.0452 g\/mol (anhydrous)\/240.18 g\/mol (nonahydrate)<\/p>\n
Appearance\uff1acolorless, hygroscopic solid<\/p>\n
Odor\uff1arotten eggs<\/p>\n
Density\uff1a1.856 g\/cm3 (anhydrous)\/1.58 g\/cm3 (pentahydrate)\/1.43 g\/cm3 (nonohydrate)<\/p>\n
Melting point\uff1a1,176 \u00b0C (2,149 \u00b0F; 1,449 K) (anhydrous)\/100 \u00b0C (pentahydrate)\/50 \u00b0C (nonahydrate)<\/p>\n
Solubility in water\uff1a12.4 g\/100 mL (0 \u00b0C)\/18.6 g\/100 mL (20 \u00b0C)\/39 g\/100 mL (50 \u00b0C) (hydrolyses)<\/p>\n
Leather Processing: Used to remove hair and other unwanted proteins from animal hides during leather production.<\/p>\n
Pulp and Paper Industry: Employed in kraft paper manufacturing to break down lignin in wood pulp, making the pulp easier to process.<\/p>\n
Chemical Production: Acts as a precursor for other chemicals, including dyes, sulfur-containing compounds, and sulfur-based flotation agents in mining.<\/p>\n
Water Treatment: Sodium sulfide used to remove heavy metals from wastewater by precipitating metal sulfides, which can be filtered out of the solution.<\/p>\n
Photographic Industry: Sodium sulfide used in the manufacture of photographic developers and sulfur toning solutions.<\/p>\n
Handling: Must be handled with protective gear, including gloves, goggles, and masks, as it is highly alkaline and emits toxic hydrogen sulfide.<\/p>\n
Storage: Store in a cool, dry, and well-ventilated area away from moisture, acids, and oxidizing agents.<\/p>\n
Spillage: In case of spills, sodium sulfide should be contained and neutralized with diluted acid under controlled conditions, with proper ventilation to avoid H\u2082S buildup.<\/p>\n","protected":false},"excerpt":{"rendered":"
Sodium sulfide is the chemical compound with the formula Na2S, or more commonly its hydrate Na2S\u00b79H2O. Both are colorless water-soluble salts that give strongly alkaline solutions. Physical Properties: Chemical formula\uff1aNa2S Molar mass\uff1a 78.0452 g\/mol (anhydrous)\/240.18 g\/mol (nonahydrate) Appearance\uff1acolorless, hygroscopic solid Odor\uff1arotten eggs Density\uff1a1.856 g\/cm3 (anhydrous)\/1.58 g\/cm3 (pentahydrate)\/1.43 g\/cm3 (nonohydrate) Melting point\uff1a1,176 \u00b0C (2,149 \u00b0F; 1,449 […]<\/p>\n","protected":false},"featured_media":999219,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[89],"product_tag":[],"class_list":{"0":"post-999225","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-chalcogenide-materials","8":"first","9":"instock","10":"shipping-taxable","11":"purchasable","12":"product-type-variable"},"acf":[],"_links":{"self":[{"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/product\/999225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/comments?post=999225"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/media\/999219"}],"wp:attachment":[{"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/media?parent=999225"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/product_brand?post=999225"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/product_cat?post=999225"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/product_tag?post=999225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}