Solid NaHS sodium hydrosulfide flakes 70% purity

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Product Overview

Description


Description

Sodium Hydrosulphide/ Sodium Hydrosulfide

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 is a useful reagent for the synthesis of organic and inorganic sulfur compounds, sometimes as a solid reagent, more often as an aqueous solution. Solid NaHS is colorless, and typically smells like 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.

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Properties
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IUPAC Name
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Sodium hydrosulfide
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Chemical Formula
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NaSH
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CAS Number
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16721-80-5
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Molar Mass
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56.063 g/mol
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Appearance
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Off-white solid
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Density
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1.79 g/cm3
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Solubility in Water
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50 g/100 mL (22 °C)
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Solubility
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Soluble in alcohol, ether
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Melting Point
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350 °C (662 °F; 623 K) (anhydrous)
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Main Hazards
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Flammable solid, stench, releases hydrogen sulfide
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55 °C (dihydrate)
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Flash Point
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90 °C (194 °F; 363 K)
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22 °C (trihydrate)
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H.S. Code
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28301090
Introduction

Appearance

Brownish solid yellow flakes. The Sodium Hydrosulphide will decomposed and release hydrogen disulfide at its melting point. It's dissolvable in water and ethanol, presenting strong alkaline when dissolved in water and generating hydrogen disulfide when reacting with acids.

Parameters
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Sodium Hydrosulfide Flakes
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Content
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70% min.
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72% min.
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Sodium Sulfide
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3% max.
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2% max.
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Fe
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0.003% max.
\t
0.003% max.
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Water Insolubles
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0.005% max.
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0.005% max.
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Packing
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25KG or 900KG PP Bag
Applications

Dehairing and Tanning of Hides

Minerals Mining

Color Dyeing

Wastewater Treatment

Paper Pulping

Thousands of tons of NaHS are produced annually. Its main uses are in cloth and paper manufacture as a makeup chemical for sulfur used in the kraft process, as a flotation agent in copper mining where it is used to activate oxide mineral species, and in the leather industry for the removal of hair from hides and tanning. Otherwise, it could also be used in wastewater treatment, paper pulping, chemical fertilizer industry, staining for sulfite in man-made fibers industry and so on.

Stability
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Chemical Stability
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Stable under proper operation and storage conditions.
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Possibility of Hazardous Reactions
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May catch fire spontaneously in the air.
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Conditions to Avoid
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Incompatible materials, heat, flame and spark.
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Incompatible Materials
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Nitrate and nitrite, halogens oxyacid salts, potassium permanganate, persulfate, halogen and strong oxidants.

Precautions for Handling

1. Handling is performed in a well ventilated place.
2. Wear suitable protective equipment.
3. Avoid contact with skin and eyes.
4. Keep away from heat/sparks/open flames/ hot surfaces.
5. Take precautionary measures against static discharges.

Precautions for Storage

1. Keep containers tightly closed.
2. Keep containers in a dry, cool and well-ventilated place.
3. Keep away from heat/sparks/open flames/ hot surfaces.
4. Store away from incompatible materials and foodstuff containers.

Packing

25KG 4 ply PP Woven Bag

Loading capacity for this way of packing is about 22 metric tons for 20' full container load (22MT/20'FCL ).

900KG/1000KG Jumbo Bag

We use jumbo woven bag for 900KG/1000KG way of packing. Its loading capacity is about 18 metric tons for 20' full container load (18MT/20'FCL ).

Shipping

Shipment Service

1. We offer professional logistic sulutions with multiple ways such as land, ocean, railway, ISO tanks etc..

2. Long-term export experience cultivated us with mature custom handling ability to ensure smooth delivery at the port.

3. In order to provide comprehensive service and ensure cargo quality at the port, we specially maintain a loading supervision team. Each container loading will under strict supervision and we keep photos of each order.


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