YtterbiumingotNREO
Ytterbium
CAS: 7440-64-4
Molecular Formula: Yb
YtterbiumingotNREO - Names and Identifiers
YtterbiumingotNREO - Physico-chemical Properties
| Molecular Formula | Yb |
| Molar Mass | 173.04 |
| Density | 6.54g/mLat 25°C(lit.) |
| Melting Point | 824°C(lit.) |
| Boling Point | 1196°C(lit.) |
| Water Solubility | It reacts slowly with water and is soluble in dilute acids. |
| Appearance | powder |
| Specific Gravity | 6.97 |
| Color | Silver-gray |
| Exposure Limit | ACGIH: TWA 2 ppm; STEL 4 ppmOSHA: TWA 2 ppm(5 mg/m3)NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3) |
| Merck | 13,10160 |
| Storage Condition | Flammables area |
| Sensitive | Air & Moisture Sensitive |
| MDL | MFCD00011286 |
| Use | Ytterbium can improve the performance of stainless steel and is used to make stress gauges. It is also used to make other alloys containing ytterbium. |
YtterbiumingotNREO - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable R36/38 - Irritating to eyes and skin. |
| Safety Description | S36 - Wear suitable protective clothing. S33 - Take precautionary measures against static discharges. S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 3089 4.1/PG 2 |
| WGK Germany | 3 |
| RTECS | ZG1925000 |
| TSCA | Yes |
| HS Code | 28053090 |
| Hazard Class | 4.2 |
| Packing Group | I |
YtterbiumingotNREO - Introduction
Silver gray rare earth metal. Soft texture. It is malleable. Can be slowly oxidized by oxygen in the air. Easy to react with water. Soluble in dilute acid and liquid ammonia.
Last Update：2022-10-16 17:28:22
YtterbiumingotNREO - Reference Information
| resistivity | 28 ***-CM, 20°C |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Overview | ytterbium is a silver-gray metal, soft and malleable, with two types of allotropes: Α-type cubic face-centered lattice; Β-type cubic center lattice. The transition temperature was 798 °c. |
| properties | the metal atom radius of ytterbium is 1.940 × 10-10 m. The ionic radius is 1.13 × 10-10 m (bivalent) and 0.86 × 10-10 m (trivalent). The resistivity was 2.90 × 10-5 ohm · cm. Standard electrode potential (EYb3 /Yb °)-2.267 volts. Soluble in dilute acid and liquid ammonia. It reacts slowly with water and is quite stable in air. |
| Application | ytterbium can be used as a laser material, a garnet dopant, a handheld X-ray source, and various reagents. |
| preparation | ytterbium is present in rare earth minerals such as monazite and is prepared by reduction of an oxide of Ytterbium with lanthanum. |
Last Update：2024-04-10 22:29:15
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