Frequently Asked Questions about Sodium Hydrogen Sulfide Import and Export to Europe and America

I. Introduction and properties of sodium hydrosulfide

Sodium hydrosulfide, is an inorganic substance, chemical formula for NaHS, for the white crystalline powder, soluble in water and alcohol, used in the dye industry to generate organic chemical intermediates and the production of sulfur dyes modifier, in the tanning industry for the removal of raw hides and tanning, in the fertilizer industry for the removal of individual sulfur in the activated carbon desulfurization catalyst, in the mining industry for many tin ore dressing plant, in the synthetic fiber production process for the coloring of sulfite, etc. In the process of synthetic fiber production is used for sulfurous acid coloring.

II, The main use of sodium hydrosulfide

In the dyestuff industry, it is used to produce organic chemical intermediates and modifiers for sulfur dyestuffs, in the tanning industry, it is used to remove hair and tanning leather, in the fertilizer industry, it is used to remove single sulfur in the catalyst of activated carbon desulfurization, in the mining industry, it is used in tin ore dressing plant, and it is used to color synthetic fibers with sulfurous acid, and so on.

III, sodium hydrosulfide import and export of Europe and the United States common problems

1. Many chemical products are classified as dangerous goods, to be approved as dangerous goods or not.

2. Transportation requirements: to ensure that the box has 5% -10% clearance, liquid can not tolerate more than 90% of the total capacity.

3. sealing tape: all liquid objects, should be the second sealing of the mouth of the vessel to prevent liquid outflow.

4. Some producing areas of chemical products are recognized as anti-dumping duty goods, should provide proof of origin to determine the

5. Outer package filling regulations: delivery of liquid to use the corresponding filler and adsorbent, the internal structure should be filled with punch, to avoid sodium hydrosulfide shaking in the package caused by accidents.

6. Sodium hydrosulfide is imported and exported from Europe and the United States according to the MSDS can confirm whether it is dangerous goods, and there is no type of dangerous goods, UN number, packaging type, that is, general chemical products.