Metal materials

Nonferrous metal, Rare metals, Rare And Noble Metal, Metal powder.

Nano materials

Nanometer TiO2 Series, Nanometer SiO2 Series,Nanopowder,Graphene.


+86 180 5010 0836





Production of tin nanometric powders by hydrogen DC claret arc evaporation.

About us

Gerhold Chemetals Co., Ltd is a German company founded both in Germany and China in 1997.


Yttrium oxide for sale.

Silver nitrate uses.

Gerhold Chemetals Co., Ltd.

  Gerhold Chemetals Co., Ltd is a German company founded both in Germany and China in 1997, focuses on research and development of Metallic powders, Metal Compounds nano powders. We can customize products according to customers’ special requirements.

  Our technologies are from Elektrotechnik University, Aachen University, München University and Beijing University.


 The advantages of our products:

   1. Uniform particle size 
   2. invariant Shape
   3. High purity, reach 99.999999
   4. Good dispersion


  In worldwide market, Gerhold Chemetals has sold products to more than 50 countries. We will keep on developing and enlarging business by our advantages.

The ability of assorted polyaluminium chloride

Submitted by News on Mon, 12/10/2018 - 07:28

The ability of assorted polyaluminium chloride coagulants (PACls) was compared to the ability of aluminium sulfate (alum) in the coagulation-flocculation action above-mentioned absolute filtration in bubbler baptize treatment. The allusive abstraction consisted of two abstracted yet commutual alternation of experiments: the aboriginal alternation included abbreviate (5-7 h) and continued (24 h) clarify runs conducted at a pilot filtration bulb able with ample clarify columns that apish all-encompassing filters.

What is Oxalic Acid?

Submitted by News on Mon, 12/10/2018 - 07:23

Oxalic acid is an organic compound with the formula of  C2H2O4. It is a colorless crystalline solid that forms a colorless solution in water. Its condensed formula is HOOCCOOH, reflecting its classification as the simplest dicarboxylic acid.  Its acid strength is much greater than that of acetic acid. Oxalic acid is a reducing agent and its conjugate base, known as oxalate (C2O2−4), is a chelating agent for metal cations.  

Typically, oxalic acid occurs as the dihydrate with the formula C2H2O4·2H2O. Excessive ingestion of oxalic acid or prolonged skin contact can be dangerous.

What is Spinel

Submitted by News on Mon, 12/10/2018 - 07:18

Spinel is found as a metamorphic mineral, and also as a primary mineral in rare mafic igneous rocks; in these igneous rocks, the magmas are relatively deficient in alkalis relative to aluminium, and aluminium oxide may form as the mineral corundum or may combine with magnesia to form spinel. This is why spinel and ruby are often found together.

Antimonous oxide blaze retardant

Submitted by News on Mon, 12/10/2018 - 07:17

An calmly brominated flame-retardant arrangement which is composed of decabromodiphenyl oxide (DB) and antimonous oxide (AO) was acclimated for continued bottle fiber-reinforced polypropylene (LGFPP), and the thermal stability, blaze retardancy, and automated backdrop of DB-AO/LGFPP composites were investigated.

When 12 wt% of DB-AO blaze retardant was added into LGFPP, the attached oxygen basis of composites could ability 24.8 and canyon the V-0 appraisement in UL-94 test.

The relationship with iron oxide and Antimonous oxide

Submitted by News on Mon, 12/10/2018 - 07:15

The results of a study into the effects of a combination of basic iron(III) oxide and antimonous oxide on the flammability and smoke producing properties in a polymer blend of ABS (acrylonitrile-butadiene-styrene) and PVC (polyvinyl chloride) indicate that both oxides act together to increase the polymer's resistance to ignition and burning.

The Benefits of Zinc Oxide for the Skin

Submitted by News on Mon, 12/10/2018 - 07:12

Zinc oxide is able to heal the skin, as well. It can be acclimated to alleviate wounds, abate the amore associated with sunburns and abate chapped skin. Jonathan Moore, DPM, addendum that humans who are zinc amiss about acquaintance slower wound-healing times. When zinc oxide is activated to the anguish area, it provides the physique with the added zinc it needs to adjustment derma cells. Zinc oxide helps accumulate the anguish breadth clammy and clean.

Applications of Arsenic Trioxide Medical

Submitted by News on Mon, 12/10/2018 - 07:08

In the 1970s Chinese researcher Zhang TingDong and colleagues advised the abeyant use of the commonly acclimated Chinese anesthetic arsenic trioxide to amusement astute promyelocytic leukemia (APL).Building on his work, analysis both in China and the West eventually led to the development of the biologic Trisenox by PolaRx Biopharmaceuticals, Inc through NDA, which was accustomed for leukemia analysis by the US FDA in 2000 and after marketed and awash by Cell Therapeutics, Inc., afore getting acquired by Cephalon.

Uses of Potassium Persulphate

Submitted by News on Mon, 12/10/2018 - 07:06

As an oxidizer and a antecedent of radicals, Potassium Persulphate finds abounding bartering applications.

The sulfate abolitionist adds to the alkene to accord a sulfate ester radical. It is aswell acclimated forth with tetramethylethylenediamine to activate the polymerization of acrylamide in authoritative a polyacrylamide gel, appropriately getting important for SDS-PAGE and western blot.

An Efficiently Brominated Flame Retardant Composed

Submitted by News on Mon, 12/10/2018 - 07:03

An calmly brominated blaze retardant which composed of decabromodiphenyl oxide (DB) and antimonous oxide (AO) was acclimated to blaze retardant for continued bottle cilia able polypropylene (LGFPP). In adjustment to investigate the thermal stability, blaze retardancy and automated acreage of DB-AO/LGFPP composites acclimated by thermogravimetric assay (TGA), attached oxygen basis (LOI), vertical afire (UL-94) and automated acreage tests.