Basic information
- Name:
Antimony
- CAS No.:
7440-36-0
- Molecular Structure:
- Formula:
- Sb
- Molecular Weight:
- 121.76
- Deleted CAS:
- 117011-47-9|73063-67-9
- Synonyms:
- C.I. 77050;Antimony Black;Regulus of antimony;Antimony, elemental;Antimony metal, high purity;Sell-Jiefu Refined Antimony;High Purity Antimony Metal;Antimony, metallic;stibanylidynestibane;Antimony ingot;Antymon [Polish];Antimony powder [UN2871] [Poison];CI 77050;Antimony and compounds;Antimony, regulus;Stibium;Stibium metallicum;
- EINECS:
- 231-146-5
- Density:
- 6.69 g/mL at 25 °C(lit.)
- Melting Point:
- 630 °C(lit.)
- Boiling Point:
- 1635 °C
- Solubility:
- insoluble in water
- Appearance:
- grey powder
- Hazard Symbols:
N,
Xn- Risk Codes:
- 34-51/53-20/22-36/37/38-36/38
- Safety Description:
- 60-61-36/37/39-26 Details
- Transport Information:
- UN 3264 8/PG 2
- AvailableForms:
- Besides the stable metal, there are two allotropes: yellow crystals and amorphous black modifications.
- Source:
- Ores: Stibnite, kermasite, tetrahedrite, livingstonite, jamisonite.
- Occurrence:
- Algeria, Bolivia, China, Mexico, South Africa, Peru, Yugoslavia.
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Chemistry
Molecular Structure:
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Molecular Formula: Sb
Molecular Weight: 121.76
IUPAC Name: Antimony
Synonyms of Antimony (CAS NO.7440-36-0): Antimony Black ; Antimony, metallic ; Antimony, regulus ; Antymon ; Antymon [Polish] ; C.I. 77050 ; CI 77050 ; EINECS 231-146-5 ; HSDB 508 ; Regulus of antimony ; Stibium ; Stibium metallicum ; UNII-9IT35J3UV3 ; Antimony and compounds ; Antimony powder ; Antimony powder [UN2871] [Poison] ; Antimony, elemental ; UN2871
CAS NO: 7440-36-0
Classification Code: Tumor data
Melting point: 630 °C
Boiling Point: 1950 °C
Density: 6.69 g/mL at 25 °C
Flash Point: 1380°C
Solubility H2O: soluble
Form: powder
Water Solubility: INSOLUBLE
Merck: 13,698
Uses
Antimony (CAS NO.7440-36-0) can be used in the manufacture Ⅲ ~ V family compound semiconductor, high purity alloys, antimony sulfide and used for cooling components and silicon, germanium crystals doped with agents.
Additionally,it is used as analytical reagent, but also for the preparation of alloys and salt ,but also for high-purity reagents and raw materials for the semiconductor
Production
Industrial production of Antimony (CAS NO.7440-36-0) has distillation and zone melting method.
Distillation of antimony block by adding the reactor, which leads to chlorine chlorination reaction of antimony trichloride. Crude antimony trichloride will join the distiller, by adding a small amount of scrap metal antimony by vacuum distillation to remove its impurities antimony pentachloride, and then distilled under atmospheric pressure. To take 221 ~ 225 ℃ of the fractions by cooling crystallization obtained antimony trichloride, after reduction, the obtained purity metal antimony ≥ 99.999%. And then this metal antimony as raw material, purified by double distillation, the purity of obtained high-purity antimony ≥ 99.9999%.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| guinea pig | LD50 | intraperitoneal | 150mg/kg (150mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. | |
| mouse | LD50 | intraperitoneal | 90mg/kg (90mg/kg) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 22, 1982. | |
| rat | LD50 | intraperitoneal | 100mg/kg (100mg/kg) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 22, 1982. | |
| rat | LD50 | oral | 7gm/kg (7000mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. |
Consensus Reports
Antimony (CAS NO.7440-36-0) and its compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory.
Safety Profile
Hazard Codes of Antimony (CAS NO.7440-36-0): 
N,
Xn,Xi
Risk Statements: 34-51/53-20/22-36/37/38
R34: Causes burns.
R51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
R20/22: Harmful by inhalation and if swallowed.
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 60-61-36/37/39-26
S60: This material and its container must be disposed of as hazardous waste.
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: UN 3264 8/PG 2
WGK Germany: 2
RTECS: CC4025000
HazardClass: 6.1
PackingGroup: III
An experimental poison by intraperitoneal route. Questionable carcinogen with experimental carcinogenic data. Moderate fire and explosion hazard in the forms of dust and vapor when exposed to heat or flame. See also POWDERED METALS. When heated or on contact with acid it emits toxic fumes of SbH3. Electrolysis of acid sulfides and stirred Sb halide yields explosive Sb. It can react violently with NH4NO3, halogens, BrN3, BrF3, HClO3, ClO, ClF3, HNO3, KNO3, KMnO4, K2O2, NaNO3, oxidants.
Standards and Recommendations
OSHA PEL: TWA 0.5 mg(Sb)/m3
ACGIH TLV: TWA 0.5 mg(Sb)/m3
DFG MAK: 0.5 mg(Sb)/m3
NIOSH REL: TWA 0.5 mg(Sb)/m3
DOT Classification: 6.1; Label: KEEP AWAY FROM FOOD
Analytical Methods
For occupational chemical analysis use OSHA: #ID-125 G or NIOSH: Elements in Blood or Tissue, 8005.
Specification
Storage Features of Antimony (CAS NO.7440-36-0).
Treasury ventilated low-temperature drying; with acids, food additives and kept separate
