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Sodium Hydrosulfide (Nahs) Solution, 45%

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Sodium Hydrosulfide (Nahs) Solution, 45% Nouryon Functional Chemicals LLC Performance Formulations Product Data Sheet Sodium Hydrosulfide (NaHS) Solution, 45% Nomenclature Sodium Hydrosulfide Sodium Hydrogen Sulfide Formula NaSH Product UN 2922 Identification Number CAS Number 16721-80-5 Molecular Weight 56.06 Description Sodium Hydrosulfide (NaHS) is an economical form of reactive sulfur that is typically a light-yellow colored solution with the accompanying odor of rotten eggs. Hydrogen Sulfide (H2S), a toxic gas, is evolved upon contact of NaHS with acids. NaHS is mildly corrosive to carbon steel and cast iron. Stainless steels are very resistant to corrosion. Copper and its alloys, aluminum and zinc are rapidly attacked. Polyvinyl chloride (PVC) storage systems are to be avoided. Available Grades Technical Grade Typical Parameter Specification Test Method Composition NaHS (%) 42.5 – 46.5 QCL455 Na2S (%) 1.5 max. QCL455 Na2CO3 (%) 0.6 max. QCL453 Na2S2O3 (%) 0.3 max. QCL456 Na2S2 (%) 0.05 max. QCL456 Typical Specific Gravity (50°C/15.6°C) 1.259 – 1.283 ----- Properties Density (lb./gal) at 50°C (122°F) 10.5 – 10.7 ----- Freezing Point 11°C (52°F) - 22°C (72°F) ----- Fe 6 ppm max. QCL452 Shipping Tank Trailers (22 short tons net weight) Containers ISO Tank Containers (22 to 25 short tons net weight) Rail Tank Cars (92 short tons net weight) Uses Chemical In manufacture of thio compounds such as thioamides, thiourea, thioglycolic acid, thio and dithiobenzoic acids, and sodium thiosulfate. As an agent to separate or remove heavy metals. Dyes To apply sulfur dyes to cotton, leather and skins; as a process material in the manufacture of some dyes Leather Processing As a dehairing agent to produce fine leathers Glass Making As a fining agent in flint glass Metal Refining As a floatation aid; to precipitate metals for recovery All information concerning this product and/or suggestions for handling and use contained herein are offered in good faith and are believed to be reliable. Nouryon, however, makes no warranty as to accuracy and/or sufficiency of such information and/or suggestions, as to the product's merchantability or fitness for any particular purpose, or that any suggested use will not infringe any patent. Nouryon does not accept any liability whatsoever arising out of the use of or reliance on this information, or out of the use or the performance of the product. Nothing contained herein shall be construed as granting or extending any license under any patent. Customer must determine for himself, by preliminary tests or otherwise, the suitability of this product for his purposes. The information contained herein supersedes all previously issued information on the subject matter covered. The customer may forward, distribute, and/or photocopy this document only if unaltered and complete, including all of its headers and footers, and should refrain from any unauthorized use. Do not copy this document to a website. 131 South Dearborn Street T +1 888 578 5387 B. Doyle, revised 12-April-2020 Chicago, IL 60603 https://sulfurderivatives.nouryon.com U.S.A Uses (continued) Mining For sulfidizing the ore and as a depressant in flotation circuits Plastics Manufacturing As a process additive in the manufacture of heat resistant thermoplastics for the auto and electric and electronic industries Paper Industry In synthetic cooking liquor for kraft pulp mill start-ups or as a make-up chemical for this process Textiles To desulfurize viscose rayon and regenerated viscose.
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