GADOLINIUM (CAS 7440-54-2) — formula Gd, molecular weight 157.25; category organic chemicals.
| CAS Number | 7440-54-2 |
|---|---|
| Molecular Formula | Gd |
| Molecular Weight | 157.25 |
| Melting Point | 1312 °C. [Sax] |
| Boiling Point | 3273 °C |
| Applications | Uses: Used in the control rods of some nuclear reactors, Natural isotopes include Gd-152 (radioactive), the remaining six isotopes are stable and comprise 99.8% of naturally occurring gadolinium, Mineral sources are samarskite, gadolinite (ytterbite), and xenotime, [Merck Index] Used in high-temperature alloys and in electronic components, [Britannica], Metal Preparation and Pouring [Category: Foundry], Mining [Category: Industry], As little as 1% gadolinium has been found to improve the workability and resistance of iron, chromium, and related alloys to high temperature and oxidation., It has been used in making gadolinium yttrium garnets, which have microwave applications., Gadolinium has the highest thermal neutron capture cross-section of any known element... Natural gadolinium is a mixture of seven isotopes. Two of these, (155)Gd and (157)Gd, have excellent capture characteristics, but they are present naturally in low concentrations. As a result, gadolinium has a very fast burnout rate and has limited use as a nuclear control rod material., Neutron shielding, ...phosphor activator, catalyst, scavenger for oxygen in titanium production., Methods of Manufacturing: (1) Reduction of the, gadolinium, fluoride with calcium, (2) electrolysis of the, chloride with sodium chloride or potassium chloride in an iron pot that serves as an anode and graphite cathode., Formulations, Preparations: Ingots, lumps, turnings, powder up to 99.9+% pure., General Manufacturing Information: Gadolinium: ACTIVE |
| Category | Organic Chemicals |
Documented applications: Uses: Used in the control rods of some nuclear reactors, Natural isotopes include Gd-152 (radioactive), the remaining six isotopes are stable and comprise 99.8% of naturally occurring gadolinium, Mineral sources are samarskite, gadolinite (ytterbite), and xenotime, [Merck Index] Used in high-temperature alloys and in electronic components, [Britannica], Metal Preparation and Pouring [Category: Foundry], Mining [Category: Industry], As little as 1% gadolinium has been found to improve the workability and resistance of iron, chromium, and related alloys to high temperature and oxidation., It has been used in making gadolinium yttrium garnets, which have microwave applications., Gadolinium has the highest thermal neutron capture cross-section of any known element... Natural gadolinium is a mixture of seven isotopes. Two of these, (155)Gd and (157)Gd, have excellent capture characteristics, but they are present naturally in low concentrations. As a result, gadolinium has a very fast burnout rate and has limited use as a nuclear control rod material., Neutron shielding, ...phosphor activator, catalyst, scavenger for oxygen in titanium production., Methods of Manufacturing: (1) Reduction of the, gadolinium, fluoride with calcium, (2) electrolysis of the, chloride with sodium chloride or potassium chloride in an iron pot that serves as an anode and graphite cathode., Formulations, Preparations: Ingots, lumps, turnings, powder up to 99.9+% pure., General Manufacturing Information: Gadolinium: ACTIVE.
GADOLINIUM is a carbon-based organic compound with CAS registry number 7440-54-2 and molecular formula Gd (molecular weight 157.25), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 7440-54-2
Its molecular formula Gd comprises 1 Gd atom.
Also known as: GADOLINIUM · 钆；金属钆
Category: organic chemicals
The CAS registry number of GADOLINIUM is 7440-54-2.
Molecular formula Gd, molecular weight 157.25.
It is also registered under: GADOLINIUM, 钆；金属钆.
Recorded applications: Uses: Used in the control rods of some nuclear reactors, Natural isotopes include Gd-152 (radioactive), the remaining six isotopes are stable and comprise 99.8% of naturally occurring gadolinium, Mineral sources are samarskite, gadolinite (ytterbite), and xenotime, [Merck Index] Used in high-temperature alloys and in electronic components, [Britannica], Metal Preparation and Pouring [Category: Foundry], Mining [Category: Industry], As little as 1% gadolinium has been found to improve the workability and resistance of iron, chromium, and related alloys to high temperature and oxidation., It has been used in making gadolinium yttrium garnets, which have microwave applications., Gadolinium has the highest thermal neutron capture cross-section of any known element... Natural gadolinium is a mixture of seven isotopes. Two of these, (155)Gd and (157)Gd, have excellent capture characteristics, but they are present naturally in low concentrations. As a result, gadolinium has a very fast burnout rate and has limited use as a nuclear control rod material., Neutron shielding, ...phosphor activator, catalyst, scavenger for oxygen in titanium production., Methods of Manufacturing: (1) Reduction of the, gadolinium, fluoride with calcium, (2) electrolysis of the, chloride with sodium chloride or potassium chloride in an iron pot that serves as an anode and graphite cathode., Formulations, Preparations: Ingots, lumps, turnings, powder up to 99.9+% pure., General Manufacturing Information: Gadolinium: ACTIVE.
Category: Organic Chemicals.
Independent reference data for GADOLINIUM (CAS 7440-54-2), compiled from public chemistry databases.
| CAS 号 | 7440-54-2 |
|---|---|
| PubChem CID | 23982 |
| 分子式 | Gd |
| IUPAC 名称 | gadolinium |
| UNII（FDA） | AU0V1LM3JT |
| Molecular Weight | 157.25 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 157.92411 |
| Monoisotopic Mass | 157.92411 |
| Topological Polar Surface Area | 0 |
| Heavy Atom Count | 1 |
| Boiling Point | 3273 °C |
|---|---|
| Boiling Point | 3273 °C @760 [mm Hg] |
| Melting Point | 1312 °C. [Sax] |
| Melting Point | 1313 °C |
| Melting Point | 1312 °C |
| Density | 7.90 g/cu cm |
| Density | 7.898 @25 °C |
GADOLINIUM; 7440-54-2; Gadolinium, elemental; AU0V1LM3JT; DTXSID5037234; CHEBI:33375; Gadolinium Metallicum; RefChem:55243; DTXCID3017234; 231-162-2; GADOLINIUM ATOM; gadolinio; gadolinium(4+); MFCD00011022; 64Gd; Gadolinium foil, 3N
| GHS 通报统计 | 17.5% (11 / 63) |
|---|
| GHS 通报统计 | 17.5% (11 / 63) |
|---|---|
| 已通报的危害声明 | H228 (15.9%), H261 (66.7%) |
钆；金属钆 · CAS 7440-54-2 · Gd. UNII AU0V1LM3JT. Boiling Point: 3273 °C; Boiling Point: 3273 °C @760 [mm Hg]; Melting Point: 1312 °C. [Sax].
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 钆；金属钆