1.8–2.0 mm zirconia grinding beads, smooth, zirconia beads, milling and grinding beads, ceramic balls

Extremely hard grinding balls with a high alumina content of min. 90.0%. They are highly resistant to corrosive stresses such as acids, bases, gases, vapors, or salts (with the exception of hydrofluoric acid). Their very high hardness makes them ideal grinding media for mills of various designs. Due to their low wear and, consequently, low contamination of the milled material, they ensure high cost-effectiveness with consistently high grinding results. The balls have no compression edge. Chemical and physical specifications Size fraction: 3.5 - 4.5 mm Density (specific weight): 3.63 g/cm³ [ +/- 0.07] Mohs hardness: ~9 Heat resistance: up to 1600 °C Rockwell hardness: ~80 Bulk density: approx. 2.0 to 2.1 kg/dm³ Al2O3: ≧ 90% SiO2: ≦ 4.5% alkaline metal oxides: approx. 5.0%

Didymium Today, however, the term is no longer used because the rare earths have been identified and divided into individual elements. Didymium was first discovered in 1841 by the Swedish chemist Carl Gustaf Mosander. He isolated it from cerite, a mineral that is a mixture of rare earths. However, it later turned out that Didymium itself is a mixture of the elements Praseodymium and neodymium. Didymium with its essential components Praseodymium and Neodymium finds a wide range of applications in glass technology and electronics. For example, they are used for the production of Permanent magnets, Lasers / optical fibers, Glasses (special glasses for glassblowers - yellow filters) and Ceramics (glazes) used. It is also occasionally used as a catalyst in pyrotechnics and rocket technology.At high temperatures, the mixed oxalate decomposes into the corresponding oxides. This means that the didymium can easily be further processed in other fields of application.  Signal word: ATTENTION! Hazard warningsH302: Harmful if swallowed. H315: Causes skin irritation. H319: Causes serious eye irritation. H335: May cause respiratory irritation.Safety information P261: Avoid breathing dust/fume/gas/mist/vapour/spray. P264: Wash hands thoroughly after use. P270: Do not eat, drink or smoke when using. P280: Wear protective gloves/protective clothing/eye protection/face protection. P301+P312: If swallowed: Call a poison control center/doctor if you feel unwell. P302+P352: In case of contact with skin: Wash with plenty of water/soap. P304+P340: If inhaled: Remove person to fresh air and keep comfortable for breathing. P305+P351+P338: If in eyes: Rinse cautiously with water for several minutes. If possible, remove any contact lenses. Continue rinsing. P337+P313: If eye irritation persists: Get medical advice/attention. Typical chemical composition Name Formula Metal content [wt.%] Content M-oxalate x hydrate [wt.%] Neodymoxalate (Nd(C2O4)3) x 10H2O 25.31 64.28 Praseodymoxalate (Pr(C2O4)3) x 10H2O7.53 19.40 Lanthanum(III) oxalate nonahydrate La2(C2O4)3 x 9 H2O 3.72 9.43 Cerium(III) oxalate nonahydrate Ce2(C2O4)3 x 9 H2O 0.03 0.08 Samarium(III) oxalate decahydrate Sm2(C2O4)3 x 10 H2O 1.99 4.93 Gadolinium oxalate (Gd(C2O4)3) x H2O 0.45 1.09 Europium(III) oxalate decahydrate Eu2(C2O4)3 x 10 H2O 0.01 0.02

Praseodymium (III,IV) oxide is generally used in research and certain technical applications. Due to the special properties of praseodymium, this compound can be used as a dopant in some specialized electronic devices and high-temperature ceramics. The main use is in the production of special glasses and color filters.Signal word: ATTENTION!Danger warningsH302: Harmful if swallowed.H315: Causes skin irritation.H319: Causes serious eye irritation.H335: May cause respiratory irritation.Safety instructionsP261: Avoid breathing dust/fume/gas/mist/vapour/spray.P264: Wash hands thoroughly after use.P270: Do not eat, drink or smoke when using.P280: Wear protective gloves/protective clothing/eye protection/face protection.P301+P312: If swallowed: If you feel unwell, call a poison center/doctor.P302+P352: In case of contact with skin: Wash with plenty of soap/water.P304+P340: If inhaled: Remove person to fresh air and keep comfortable for breathing.P305+P351+P338: If in eyes: Rinse cautiously with water for several minutes. If possible, remove any contact lenses. Continue rinsing.P337+P313: If eye irritation persists: Get medical advice/attention.Chemical specification (typical values) informationSm2O3 < 0.0000002%Y2O3 < 0.0000001%Fe2O3 0.0005%Formula Pr6O11Werth-Metall brandManufacturer number 12037-29-5SiO2 < 0.01%CaO 0.002%CAS no. 12037-29-5Cl < 0.025%Color blackDelivery form fine powderTREO at least 99%Pr6O11/TREO min. 99.5%Ignition loss max. 1.0%La2O3 0.04%CeO2 0.12%

Copper oxide is an extremely versatile chemical substance. With its deep black to brownish shape and very fine particles, it transforms into a multifaceted green/blue tone after firing in ceramic paints, thus creating interesting effects. As a doped material, it is currently being investigated for its superconductivity.It is also used in the following areas of application: Absorbents (physical, chemical) -Pesticides -Antifouling agents -Oxidizers -Coating base material (e.g. in the area of sputtering) and much more Chemical analysis: Formula: CuO CAS No.: 1317-38-0 Min. content: 98.9 % Cu: 78.90 % Chloride: 0.015 % Zn: 0.079 % Pb: 0.003 % Screen passage: D50 40µmSignal word: ATTENTIONX00 056! Hazard informationH302: Harmful if swallowed.H410: Very toxic to aquatic organisms with long-term exposure Effect.Safety informationP273: Release into the environment avoidP264: Wash thoroughly after useP270: Do not eat, drink or drink when in use smoking.P301+P312: If swallowed: If you feel unwell “POISON CENTER  or ARTZ call., P330: Rinse mouthP501: Dispose of contents/container in accordance with local regional, national, international regulations

Lithium carbonate is used, among other things, in glass production, in the ceramics industry and in metallurgy used. It is used as a melting flux and to increase the melting points of glasses and ceramics. In metallurgy, lithium carbonate is used to produce lithium metal and lithium compounds (lithium hydroxide, also with us available) used.  Chemical/physical analysis values (typical) Appearance: White, very dusty powder insoluble. in / insol. in HCL [%]: 0.0001 Ca[%]: 0.01 Cl [%]: 0.01 SO4 [%]: 0.01 H2O [%]: 0.24 Na [%]: 0.05 K [%]: 0.004 Signal word: Attention! Danger information H302 Harmful if swallowed. H319 Causes serious eye irritation. Safety instructions P264 Wash skin thoroughly after use. P270 Do not eat, drink or smoke when using. P280 Wear eye/face protection. P301 + P312 IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. If possible, remove any contact lenses. Continue rinsing. P337 + P313 If eye irritation persists: Get medical advice/attention.