Sulfur powder is widely used and classified, and industrial sulfur powder can be said to be the most widely used one. What is industrial sulfur powder, and what details should be paid attention to when purchasing industrial sulfur powder?
First, industrial sulphur powder is a solid form processed from industrial sulphur and is pale yellow. Industrial sulfur is an important chemical product and an important industrial raw material. However, because industrial sulfur is a drug (it contains a large amount of arsenic, if it is used improperly, it is likely to cause renal insufficiency and failure, polyneuritis, liver function damage, etc.), and it has flammable characteristics. It can spontaneously ignite at 205 degrees Celsius, so you must be extra careful when transporting it, and don’t neglect it to leak.
The characteristics of industrial sulfur powder make it different from other commodities when purchasing. Pay attention to the selection. Then, how to choose industrial sulfur powder, and what details should not be ignored.
As a powdery substance, industrial sulfur powder cannot be bulked. It needs to be packed in plastic woven bags or lined with plastic film bags. In addition, if it is liquid sulfur, special containers and equipment must be used.
When purchasing industrial sulphur powder, check clearly whether there is a quality certificate on the product, which includes: product name, product grade, manufacturer’s name, factory address, batch number and date of manufacture, serial number of this standard, etc.
The quality standards for industrial sulfur powder are as follows (GB/T 2449-2006)
Technical indicators of industrial sulfur
Superior product First-class product Qualified product
Mass fraction of sulfur (S) ≥99.95%; ≥99.5%; ≥99.0%
Moisture (solid sulfur); ≤2.00%; ≤2.00%; ≤2.00%
Moisture (liquid sulfur);≤0.10%;≤0.50%;≤1.00%
Acidity (calculated as H2SO4) ≤0.003%; ≤0.005%; ≤0.02%
Ash mass fraction ≤0.03%; ≤0.10%; ≤0.20%
Mass fraction of organic matter; ≤0.03%; ≤0.30%; ≤0.80%
Mass fraction of arsenic (As); ≤0.0001% ≤0.01%; ≤0.05%
Mass fraction of iron (Fe); ≤0.003%; ≤0.005%;——
Sieve residue (particle size greater than 150μm) 0 0 ；≤3.00%
Sieve residue (particle size greater than 150μm) ≤0.50% 1.0% 4.0%
Note: The sieve residue indicator is only for powdered sulfur.
When choosing and purchasing industrial sulfur powder, you must choose a regular and powerful manufacturer.