Sodium Hydrosulfide Solution

Fig. 1. Density of sodium hydrosulfide solutions ia water, where the numbers on the vertical lines represent concentrations of NaSH ia wt % (1).

A truck driver arrived at the facility to deliver a load of sodium hydrosulfide solution. The delivery took place on the night shift. During prior deliveries on this shift, the shift supervisor had received only pickle acid. (The material commonly known onsite as pickle acid was actually ferrous sulfate.) He assumed that the sodium hydrosulfide was pickle acid and directed the truck driver to unload at the facility s pickle acid tank. Hydrogen sulfide gas was produced when the sodium hydrosulfide solution was unloaded into the ferrous sulfate tank. The truck driver was exposed to the gas and died one Whitehall Leather employee was injured (NTSB, 2000). 

Sodium Hydrosulfide Solution Sodium Bisulfite Sodium Borate Sodium Borohydride Sodium Cacodylate Hexadecyl Sulfite, Sodium Salt Sodium Chlorate Sodium Chromate Sodium Chromate Sodium Cyanide... 

Sodium Hydrosulfide Solution — Fire Hazards Flash Point (deg. F) Not flammable Flammable Limits in Air (%>) Not flammable Fire Extinguishing Agents Not pertinent Fire Extinguishing Agents Not To Be Used Not pertinent Special Hazards of Combustion Products Not... 

In a 3-I. three-neck flask, equipped with a mechanical stirrer and a reflux condenser, is placed 25 g. (o.ri mole) of benzophe-none dichloride (Note 1). An inert atmosphere is obtained by passing carbon dioxide through the flask. The sodium hydrosulfide solution is added slowly (Note 2). A vigorous reaction occurs and it is controlled by cooling. The solution becomes deep blue in color. 

It is necessary to have an excess of the chloride present at all times in order to prevent the formation of dibenzohydryl-disulfide, due to reduction of the thioketone with the hydrosulfide. If the chloride is added to the sodium hydrosulfide solution, a 70 per cent yield of the pure disulfide is obtained and no thioketone is formed. 

Reduction. The nitro compound is reduced by means of a concentrated solution of sodium hydrosulfide, NaSH, the preparation of which was described on page 113. A test is made in the following way to determine how much of the reducing agent is required 25 cc. of the filtered solution of the nitro compound is pipetted into a 750-cc. Erlen-meyer flask, diluted with 350 cc. hot water, and neutralized with soda to the point where the red coloration, which is formed, just persists. A sodium hydrosulfide solution, prepared by diluting 10 cc. of the concentrated solution to 100 cc., is then added, at 60-70°, from a burette until the color of the solution turns to a piure blue. Additional 1-cc. portions of the hydrosulfide solution are added until a definite blackening is obtained when the colorless spot on filter paper, formed by a salted-out test sample, is treated with ferrous sulfate. From the amount of hydrosulfide used in the test determination, the amount required for the total volume of the nitro solution is calculated. 

SYNS SODIUM BISULFIDE SODIUM HYDROGEN SULFIDE SODIUM HYDROSULFIDE, solution (NA 2922) pOT) SODIUM HYDROSULFIDE, with <25% water of crj stallization pN 2318) pOT) SODIUM HYDROSULFIDE, with not <25% water of crt stallization pN 2949) pOT) SODIUM MERCAPTAN SODIUM MERCAPTIDE SODIUM SULFHYDRATE... 

Treatment of isatoic anhydride (87) with sodium hydrosulfide solution yields127 the unstable thioanthranilic acid 88, which can be oxidized by hydrogen peroxide to 2,l-benzisothiazolin-3(l//)-one (89).127-131,132 2,1-Benzisothiazolin-3(l//)-thiones can be produced by the action of sodium sulfide on 2-aminobenzotrifluoride the probable intermediate is the anion of dithioanthranilic acid.133... 

Sodium Hydrosulfide Solution Sodium Bisulfide Sodium Hydrogen Sulfide Sodium Sulfhydrate ... 

Sodium Hydrosulfide Solution Rubber protective equipment such as apron, boots, splash-proof goggles, and gloves. Canister-type respirator or self-contained breathing apparatus. Move to fresh air and call physician immediately. Give mouth-to-mouth resuscitation if breathing has ceased. Immediately flush affected areas with water. Obtain medical attention as if irritation persists. Immediately flush with large quantities of water for at least 15 minutes and obtain medical attention as soon as possible. While awaiting instructions from... 

Sodium Hydrosulfide Solution Data not available Data not available 0.5-5 0.0047... 

SODIUM HYDROSULFIDE or SODIUM HYDROSULFIDE, SOLUTION or SODIUM HYDROSULFIDE, SOLID... 

SODIUM SULFHYDRATE (16721-80-5) NaHS Combustible solid (flash point 195°F/90°C, 73°F/23°C, 45% solution). Hydrolyzes in moist air to sodium hydroxide and sodium sulfide gas. Reacts violently with water, steam, acid, alcohols, producing heat, sodium hydrosulfide solution, and hydrogen sulfide frames spontaneously combustible. Reacts with acids, acid flimes, forming hydrogen sulfide. Incompatible with acids, amides, organic anhydrides, isocyanates, alkylene oxides, epichlorohydrin, aldehydes, alcohols, glycols, phenols, cresols, caprolactam solution, oxidizers. Corrodes most metals in the presence of moisture. On small fires, use dry chemical powder (such as Purple-K-Powder), water spray, or COj extinguishers. 

The data are represented by the theoretical expression for a reaction first order with respect to HbSH, with the asymptotic value of Xmoiai equal to that for ferrohemoglobin. To evaluate XHbSH the susceptibility values over the nearly linear portion of the curve were extrapolated to zero time for four solutions, with pH 5.1, 5.7, 5.7, and 7.0, respectively, the values 2240, 2110, 2260 and 1930.10" , average 2140 10" , were obtained. A value for the dissociation constant of the substance is not provided by our data. The rate constant k = —d(ln[HbSH])/d< has the approximate value 5 10" (with t measured in minutes), the observed values of fe 10 being 5.0 at pH 5.08, 12.0 at pH 5.73, 6.2 at pH 7.02, and 3.0 at pH 5.73. (The third eiqieriment was made with phosphate buffer, the others with acetate buffers thefourth was made with 0.1 ml., the others with 0.5 ml. of 4/sodium hydrosulfide solution added.) It is seen that no more than about 2-fold variation was observed over the pH range 5.1 to 7.0, and that the rate seems to increase with increase in the concentration of hydrosulfuric acid. 

Slaked Lime Calcium Hydroxide Sodium Hydrosulfide Solution Sodium Hydrosulfide... 

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