min. 97% barium sulfate, natural baryte, barium sulfate, BaSO4, fine powder, 4 µm, CAS No.: 7727-43-7
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Product information "min. 97% barium sulfate, natural baryte, barium sulfate, BaSO4, fine powder, 4 µm, CAS No.: 7727-43-7"
Barium sulfate is also widely used in the paper and paint industry, where it is used as a white pigment, active support of titanium dioxide and to increase the density of paints and varnishes. It is also very frequently used in veterinary medicine .
It is important to note that barium sulfate is high density and is not soluble. Barium sulfate is the only barium salt that is not considered dangerous goods.
Chemical and physical properties
Top cut: approx. 4µm
Sieve residue at 20µm: max. 0.05%
BaSO4 content: approx. 98.0%
Si content: approx. 0.3%
Electrical conductivity: max. 100 µS/cm
Brightness: approx. 90 Ry
pH value: approx. 8
Density: approx. 4.4 g/cm³
Mohs Hardness: 3-4
| Also known as: | Witherit, Kohlensaures Barium, BaCO3 |
|---|---|
| CAS-Nr.: | 7727-43-7 |
| Color: | Weiß |
| Elektrische Leitfähigkeit: | max. 100 µS/cm |
| Helligkeit (DIN 53163): | ca. 90 Ry |
| Härte: | ca. 3 bis 4 (Mohs) |
| Produktcharakter: | feines Pulver |
| Si (Silizium): | max. 0,3 % |
| Siebdurchgang: | 20,0 µm |
| Stoffgruppe: | Sulfate |
| kind of product: | chemical |
| material: | Bariumcarbonat |
| nominal particle size: | ca. 1,3 µm |
| ph-Wert: | ca. 8 |
| purity: | min. 98,0 % |
| zur GPSR-Informationspflicht: | Hersteller + Verantwortliche Person: Werth-Metall, Ringstr. 41b, 99428 Grammetal, info@werth-metall.de |
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This flaky zinc powder is produced from gas-atomized zinc dust. The predominantly spherical zinc dust is milled in protective gas-filled ball mills to achieve the desired particle shape (flaky/flaky/scaly/cornflake). This is a dark and extremely fine zinc powder with correspondingly increased reactivity . Zinc powders are extremely important for modern and sustainable corrosion protection. Both spherical and flaky types are available. However, it turns out that the former types are superior to the latter in several respects: The effect of zinc powder corrosion protection consists of the fact that powder bound in a carrier medium (paint, filler, resins, etc.) creates a barrier effect as well as cathodic protection. Spherical particles, however, initially exhibit predominantly cathodic protection and only a small amount of barrier protection. Platelet-shaped powders, due to their overlapping primary particles, create significantly longer percolation paths and thus immediate barrier protection. Both types, however, possess the same self-healing ability. This is the less magical, but rather purely chemically/physically explainable fact that water penetrating damaged zinc particles causes corrosion. Depending on the environment, this mainly produces zinc oxide, which has a low density and therefore a larger volume. Thus, the damage, unless excessively large, closes itself. However, it can be advantageous to use spherical and platelet-shaped particles together. You can find both in our product range. Should your application involve high mechanical stress, we highly recommend our platelet-shaped stainless steel powder 316L. This, in combination with this zinc powder, represents the ideal choice. Typical Chemical and Physical Specifications CAS No.: 7440-66-6 Average particle size: D50 3.40 µm Sieve residue at 45 µm: max. 0.10% Bulk density: 1.5 g/cm³ Signal word: Danger! Hazard statements: H228: Flammable solidH410: Very toxic to aquatic life with long-lasting effects. Precautionary statements: P210: Keep away from heat, sparks, open flames and hot surfaces. No smoking. P222: Avoid contact with air. P273: Avoid release to the environment. P280: Wear protective gloves/protective clothing/eye protection/face protection.P370+P378: In case of fire: Use sand or special powder to extinguish.
Zinc powder can be produced in various ways. The present product was produced by atomizing molten zinc (air atomization) and is characterized by a low bulk density. Zinc powder is used in a wide variety of applications: for diamond tools, in friction linings, and as a filler in resin systems or special plastics. It is also used as a pigment, chemical reagent, and soldering additive. Typical Chemical and Physical Specifications CAS No.: 7440-66-6 Sieve size: 150 µm Purity: min. 99.7% (Zn) Pb: max. 0.3% Bulk density: 2.95 g/cm³ Particle shape: spherical / irregular Granulometry (ISO 4497) >150 µm: 0.0% >63 µm: max. 15.0% > 45μm: 10-35% Signal word: WARNING! Hazard statements: H410: Very toxic to aquatic life with long-lasting effects. Precautionary statements: P222: Do not allow contact with air. P273: Avoid release to the environment.
Content: 0.5 Kilogramm (€25.70 / 1 Kilogramm)
Stainless steel powder shows higher hardness and abrasion resistance compared to zinc powder pigments . The present platelet-shaped (flaky) powder is oriented lamellarly in several levels in the binder base, with the primary particles always overlapping (non-leafing). This always ensures excellent corrosion protection against rust and UV radiation - even if the substrate is partially worn / scratched. In certain applications it can make sense to add zinc pigment to achieve a better shine. Suitable especially for solvent-based binders. Typical specificationAcetone-soluble components (fats): 0.3 - 0.55% Material: 316L (stainless steel)Particle size distribution (typical values)D90: 62-70 µm D50: 30 - 40 µm D10: 8 - 14.0 µm Signal word: ATTENTION! Danger warnings H317 May cause an allergic skin reaction. H373 May cause damage to organs through prolonged or repeated exposure. H413 May cause long-term harmful effects to aquatic life. Safety instructions P201 Obtain special instructions before use. P260 Do not breathe dust/smoke/gas/mist/vapour/aerosol. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P308 + P313 IF exposed or concerned: Get medical advice/attention. P333 + P313 If skin irritation or rash occurs: Get medical advice/attention.
Content: 0.1 Kilogramm (€73.80 / 1 Kilogramm)