Factory Direct Sodium Hydrosulphide CAS No. 16721-80-5

Sodium Hydrosulphide CAS No. 16721-80-5

Molecular Formula: NaHS
CAS No.: 16721-80-5
UN No.:2949
Molocular Weight: 56.06
Purity: 70% MIN
Model Number(Fe): 30ppm
Appearance: Yellow Flakes
Qty Per 20 Fcl: 22mt
Appearance:Yellow Flakes
Packing Detail: In 25kg/900kg/1000kg plastic woven bag

Other name: NATRIUMWATERSTOFSULFIDE, GEHYDRATEERD (NL) HYDROGÉNSULFURE DE SODIUM HYDRATÉ (FR) NATRIUMHYDROGENSULFID, HYDRATISIERT (DE) SODIUM HYDROSULPHIDE, HYDRATED (EN) HIDROSULFURO SÓDIO HIDRATATO (ES) IDROGENOSOLFURO DI SODIO IDRATATO (IT) HIDROGENOSSULFURETO DE SÓDIO HIDRATADO (PT) NATRIUMHYDROSULFID, HYDRATISERAD (SV) NATRIUMVETYSULFIDI, HYDRATOITU(FI) WODOROSIACZEK SODOWY, UWODNIONY (PL) YΔPOΘEIOYXO NATPIO, ΣTEPEO (EL)

Item	Index
NaHS(%)	70% min
Fe	30 ppm max
Na2S	3.5%max
Water Insoluble	0.005%max

OTHER USED

♦ In the photographic industry to protect developer solutions from oxidation. ♦ It is used in the production of rubber chemicals and other chemical compounds. ♦ It is use in other applications include ore flotation, oil recovery, food preservative, making dyes, and detergent.

SPECIFICATION

usage

Sodium hydrosulfide is the chemical compound with the formula NaHS. This compound is the product of the half-neutralization of hydrogen sulfide (H2S) with sodium hydroxide. NaHS and sodium sulfide are used industrially, often for similar purposes. Solid NaHS is colorless. The solid has an odor H2S owing to hydrolysis by atmospheric moisture. In contrast with sodium sulfide (Na2S), which is insoluble in organic solvents, NaHS, being a 1:1 electrolyte, is more soluble.

HANDLING AND STORAGE

Notice of Handling: Wear proper protective equipment (See Section 8). Avoid breathing product vapors. Avoid contact with skin and eyes. Use only in a well ventilated area. Dilute product only in enclosed containers. Wash thoroughly after handling. Notice of Storage: Store in well ventilated areas. Do not store combustibles in the area of storage vessels. Keep away from any sources of heat or flame. Store tote and smaller containers out of direct sunlight at moderate temperatures [<80 F (27 C)].

PHYSICAL AND CHEMICAL PROPERTIES

1 APPEARANCE: Yellowish Flake 2 PH value: N/A 3 melting point(℃): about 55 4 relative density (Water=1): 1.79 5 relative steam density ( Water=1): N/A 6 saturation VAPOR PRESSURE (Kpa): N/A 7 critical temperature(℃): N/A 8 critical pressure (mpa): N/A 9 flash point(℃): N/A 10 upper limit of exploding %(v/v): N/A 11 lower limit of exploding %(v/v): N/A 12 burn temperature(℃): N/A 13 resolvable: soluble in water and alcohol 14 main application: dyeing , leather produce, fertilizer, man-made fibre, copper mine. management of waste water. 15 boiling point(℃):about 115 16 Oder : "Rotten egg" oder

STABILITY AND REACTIVITY

1 STABILITY: easily being deliquescent, Melting point decompose out hydrogen sulfide. 2 KEEP AWAY: STRONG ACID , flammable, water, peroxide. 3 AVOID: moist air. 4 outcome of decompounding : hydrogen sulfide of strong toxicity