Antimony pentoxide

HCID 14813

Basic information

CAS
1314-60-9
Standard SMILES
[O]=[Sb](=[O])[O][Sb](=[O])=[O]
InChIKey
LJCFOYOSGPHIOO-UHFFFAOYSA-N
Molecular formula
O5Sb2
Average molar mass
323.52 g/mol
Monoisotopic mass
321.7822045

Overview

Antimony pentoxide (Sb2O5) is a chemical compound of antimony and oxygen. It always occurs in hydrated form, Sb2O5·nH2O. Antimony is a metallic element with the chemical symbol Sb and atomic number 51. Small amounts of antimony are found in the earth's crust. (L790, L741)

Names & identifiers

Preferred name
Antimony pentoxide
IUPAC
(dioxo-λ5-stibanyl)oxy-dioxo-λ5-stibane
English name
Diantimony pentoxide
Molecular formula
O5Sb2
Molecular weight
323.52

Names & synonyms

ANTIMONY PENTOXIDE1314-60-9Antimony(V) oxideAntimonic oxideDiantimony pentaoxideStibic anhydrideAntimony pentaoxideApox SAntimony oxide (Sb2O5)Nyacol AGO 40Nyacol ADP 480Nyacol ADP 494
Show more names
ANTIMONY OXIDEANTIMONY (V) OXIDEa1550a2550ago40apoxshfr201(dioxo-nyacol1550
Suncolloid AME 130Suncolloid AMT 130Anchimonzol A 2550Nyacol 1550Sun Epoch NA 100Nyacol A 1590Sun Epoch NA 3070PSun Epoch NA 3080P

Database identifiers

CAS
1314-60-9
PubChem CID
14813
DTXSID
DTXSID6050467
EC Number
215-237-7

Properties

Computed structural properties

Topological polar surface area
77.5 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
5
Rotatable bonds
0
Heavy atoms
7

Experimental & physicochemical properties

Chemical ClassesMetals -> Metalloid Compounds (Antimony)
Physical Description · 2 items

CBI; Dry Powder; Liquid; Other Solid

Yellow solid; [Merck Index]

Physicochemical properties

Melting point
380 °C · 380 °C (dec.)(lit.)
Density
3.78 g/mL · 3.78 g/mL at 25 °C(lit.)
form
Powder
Specific Gravity
3.8 · 3.8
color
Yellow
Water Solubility
3 · Slightly soluble in water. Slowly dissolves in warm HCl and warm KOH. Insoluble in HNO<sub>3</sub>

Safety & regulation

GHS classification

GHS Classification · 6 items

This chemical does not meet GHS hazard criteria for 32.5% (292 of 898) of reports.

Warning

H302 (54.9%): Harmful if swallowed [Warning Acute toxicity, oral]

P261, P264, P264+P265, P270, P271, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 898 reports by companies from 20 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]

Hazard information

Regulatory Information · 4 items

Chemical: Antimony oxide (Sb2O5)

Antimony oxide (Sb2O5) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Antimony oxide (Sb2O5) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 20-04-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/16264

Antimony oxide: Does not have an individual approval but may be used under an appropriate group standard

Hazards SummaryIntraperitoneal LD50 (mouse) = 978 mg/kg; [RTECS] Does not fully correspond to Sb2-O5 and is always somewhat hydrated; [Merck Index] A skin and strong eye irritant; [Sigma-Aldrich MSDS] See Antimony and linked occupational diseases.
Hazard Classes and Categories · 2 items

Acute Tox. 4 (54.9%)

Hazardous to the aquatic environment (Acute) - Category 3

Safety & protection

Threshold Limit Values (TLV)0.5 [mg/m3], as Sb
Permissible Exposure Limit (PEL)0.5 [mg/m3], as Sb
Immediately Dangerous to Life or Health (IDLH)50.0 [mg/m3], as Sb

Toxicology

Treatment · 1 item

Following oral exposure to antimony, administer charcoal as a slurry (240 mL water/30 g charcoal). Following inhalation exposure, move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with inhaled beta2 agonist and oral or parenteral corticosteroids. In case of eye exposure, irrigate exposed eyes with copious amounts of room temperature water for at least 15 minutes. Following dermal exposure, remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician may need to examine the area if irritation or pain persists. (T36)

Health Effects · 1 item

Dermal exposure to antimony can cause antimony spots (papules and pustules around sweat and sebaceous glands). Antimony poisoning can also lead to pneumoconiosis. Alterations in pulmonary function and other effects including chronic bronchitis, chronic emphysema, inactive tuberculosis, pleural adhesions, and irritation can result from inhalation of antimony. Increased blood pressure can also result from antimony poisoning. Myocardial depression, vasodilation and fluid loss may cause shock with hypotension, electrolyte disturbances and acute renal failure. Cerebral oedema, coma, convulsions, and death are possible. (L741)

Exposure RoutesInhalation (L741) ; oral (L741) ; dermal (L741)
Toxicity Summary · 1 item

The inhalation data suggest that the myocardium is a target of antimony toxicity. It is possible that antimony affects circulating glucose by interfering with enzymes of the glycogenolysis and gluconeogenesis pathways. The mechanism of action of antimony remains unclear. However, some studies suggest that antimony combines with sulfhydryl groups including those in several enzymes important for tissue respiration. The antidotal action of BAL depends on its ability to prevent or break the union between antimony and vital enzymes. Moreover, the The cause of death is believed to be essentially the same as that in acute arsenic poisoning. Antimony pentoxide might enhance the rate of heme degradation in liver and kidney. (A240, T18, L741, A238)

Signs and Symptoms · 1 item

Abdominal pain, vomiting, diarrhea can result from inhalation of antimony. Dyspnea, headache, vomiting,cough, conjunctivitis, and bloody purulent discharge from nose can result from inhalation exposure. Skin or eye contact can cause pain and redness of the exposed surface. (T64, L741)

Carcinogen ClassificationNo indication of carcinogenicity (not listed by IARC). (L135)

Safety data

PPE
dust mask type N95 (US), Eyeshields, Gloves
wgk
3
tsca
TSCA listed
rtecs
CC6300000
ridadr
1549
Toxicity
LD50 i.p. in rats: 400.0 mg Sb/100 g (Bradley, Fredrick)

Chemistry & industry

Pharmacology

Metabolism/Metabolites · 1 item

Antimony is widely distributed throughout the body. The hair and skin contain the highest levels of antimony. The adrenal glands, lung, large intestine, trachea, cerebellum, and kidneys also contain relatively high levels of antimony. Blood is the main vehicle for the transport of absorbed antimony to various tissue compartments of the body. Antimony is a metal and, therefore, does not undergo catabolism. Antimony can covalently interact with sulfhydryl groups and phosphate, as well as numerous reversible binding interactions with endogenous ligands (e.g., proteins). It is not known if these interactions are toxicologically significant. Antimony is excreted via the urine and feces. Some of the fecal antimony may represent unabsorbed antimony that is cleared from the lung via mucociliary action into the esophagus to the gastrointestinal tract. (L741)

Uses & manufacturing

Uses · 2 items

Used as a flame retardant; [Merck Index] Used for determination of manganese in tissue. [ChemIDplus]

Breathing air, drinking water, and eating foods that contain antimony. Exposure can also occur through dermal or skin contact (L741).

U.S. Production2023: 1,000,000 - <8,500,000 lb
Consumer UsesFlame retardant
Industry UsesCatalyst
General Manufacturing Information · 2 items

All Other Basic Inorganic Chemical Manufacturing

Antimony oxide (Sb2O5): ACTIVE

Applications · 3 items

UsesIt is used as flame retardants in acrylonitrile-butadiene-styrene (ABS) polymer, plastics, rubbers, paper and textiles. It finds use as a flocculant in the production of titanium dioxide. It also finds use in ion-exchange resin. It is also employed as catalyst in certain polymerization and oxidation reactions.

UsesFire retardant in clothing.

UsesAntimony pentoxide (Sb2O3) is used as a flame retardant for textile materials and as a source to prepare other antimony compounds.

Preparation methods · 1 item

PreparationThe hydrated oxide is prepared by hydrolysis of antimony pentachloride; or by acidification of potassium hexahydroxoantimonate(V), KSb(OH)6 [12208- 13-8]. The product, filtered and air dried at ambient temperature has approximate composition Sb2O5 3.5H2O. It may be also prepared by oxidation of antimony trioxide with nitric acid.

Upstream & downstream products

Suppliers101 total

江西益众化工有限公司15307925109 15350027073 · [email protected]
阿诺西(上海)生物技术有限公司400-1107768 15058188853 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]
Hebei Zhuanglai Chemical Trading Co Ltd+86-16264648883 · [email protected]
四川硅迪新材料有限公司13084446066 · [email protected]

Additional notes

DefinitionA yellow solid. It is usually formed by the action of concentrated nitric acid on antimony or by the hydrolysis of antimony(V) chloride. Although an acidic oxide, it is only slightly soluble in water.

Related reactions

12 records

Compound notes

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