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Antimony(CAS No. 7440-36-0)

Antimony Sb (cas 7440-36-0) Molecular Structure

7440-36-0 Structure

Identification and Related Records

【Name】
Antimony
【CAS Registry number】
7440-36-0
【Synonyms】
Antimony bar
AntimonyrodNmmdiaxmmlonggmm
AntimonyshotNmmanddown
Antimonypowdermesh
Antimonylumprandom
AntimonypowderNmesh
AntimonyshotNmmdia
Antimony shot
Antimony powder
Antimony metal 99+ %
Antimony solution 1000 ppm
Antimony solution 10 000 ppm
antimoineelementaire
Antimony black
Antimony, regulus
antimony,elemental
antimony,regulus
antimonyatomicabsorptionstandardsolution
antimonyblack
Antymon
【EINECS(EC#)】
231-146-5
【Molecular Formula】
Sb (Products with the same molecular formula)
【Molecular Weight】
121.76
【Inchi】
InChI=1/2Sb/rSb2/c1-2
【InChIKey】
WATWJIUSRGPENY-UHFFFAOYSA-N
【Canonical SMILES】
[Sb]
【MOL File】
7440-36-0.mol

Chemical and Physical Properties

【Appearance】
Clear, colorless liquid
【Density】
6.684
【Melting Point】
630℃
【Boiling Point】
1635℃
【Flash Point】
1380°C
【Water】
INSOLUBLE
【Solubilities】
INSOLUBLE
【Color/Form】
COLORLESS GAS
【Computed Properties】
Molecular Weight:121.76 [g/mol]
Molecular Formula:Sb
H-Bond Donor:0
H-Bond Acceptor:0
Rotatable Bond Count:0
Exact Mass:120.903818
MonoIsotopic Mass:120.903818
Topological Polar Surface Area:0
Heavy Atom Count:1
Formal Charge:0
Complexity:0
Isotope Atom Count:0
Defined Atom Stereocenter Count:0
Undefined Atom Stereocenter Count:0
Defined Bond Stereocenter Count:0
Undefined Bond Stereocenter Count:0
Covalently-Bonded Unit Count:1

Safety and Handling

【Hazard Codes】
Xn:Harmful
【Risk Statements】
R20/22;R51/53
【Safety Statements 】
S61
【HazardClass】
6.1
【Safety】

Hazard Codes of Antimony (CAS NO.7440-36-0):?DangerousN,HarmfulXn,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.

【PackingGroup 】
III
【Skin, Eye, and Respiratory Irritations】
May cause severe allergic respiratory reaction.
【Cleanup Methods】
Approach release from upwind. Eliminate all ignition sources. Stop or control the leak, if this can be done without undue risk.
【Transport】
UN 2871
【Fire Fighting Procedures】
If material on fire or involved in fire: Do not extinguish fire unless flow can be stopped. Do not apply water to point of leak in tank car or container. Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use foam, dry chemical, or carbon dioxide.
Evacuation: If fire becomes uncontrollable or container is exposed to direct flame -- consider evacuation of one-third (1/3) mile radius.
Stop flow of gas before extinguishing fire. Approach fire from upwind to avoid hazardous vapors & toxic decomp products. Fight fire from protected location or maximum possible distance. Explosive decomp may occur under fire conditions. Use flooding quantities of water as spray. DO NOT use halogenated extinguishing agents. Use water spray to keep fire-exposed containers cool.
【Fire Potential】
FLAMMABLE WHEN EXPOSED TO HEAT OR FLAME.
【DOT Emergency Guidelines】
If ... THERE IS NO FIRE, go directly to the Table of Initial Isolation and Protective Action Distances /(see table below)/ ... to obtain initial isolation and protective action distances. IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the appropriate guide /(see guide(s) below)/ and use the evacuation information shown under PUBLIC SAFETY. Table of Initial Isolation and Protective Action Distances for Stibine Small Spills (from a small package or small leak from a large package) -------------------- First ISOLATE in all Directions 60 meters (200 feet) Then PROTECT persons Downwind during DAY: 0.4 kilometers (0.3 miles) Then PROTECT persons Downwind during NIGHT: 2.2 kilometers (1.4 miles) ==================== Large Spills (from a large package or from many small packages) -------------------- First ISOLATE in all Directions 270 meters (900 feet) Then PROTECT persons Downwind during DAY: 2.8 kilometers (1.7 miles) Then PROTECT persons Downwind during NIGHT: 7.5 kilometers (4.7 miles)
/GUIDE 119: GASES - TOXIC - FLAMMABLE/ Health: TOXIC; may be fatal if inhaled or absorbed through skin. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.
/GUIDE 119: GASES - TOXIC - FLAMMABLE/ Fire or Explosion: Flammable; may be ignited by heat, sparks or flames. May form explosive mixtures with air. Those substances designated with a "P" may polymerize explosively when heated or involved in a fire. Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release toxic and flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket. Runoff may create fire or explosion hazard.
/GUIDE 119: GASES - TOXIC - FLAMMABLE/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions. Keep unauthorized personnel away. Stay upwind. Many gases are heavier than air and will spread along ground and collect in low or confined areas (sewers, basements, tanks). Keep out of low areas. Ventilate closed spaces before entering.
/GUIDE 119: GASES - TOXIC - FLAMMABLE/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible.
/GUIDE 119: GASES - TOXIC - FLAMMABLE/ Evacuation: ... Fire: If tank, rail car or tank truck is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions.
/GUIDE 119: GASES - TOXIC - FLAMMABLE/ Fire: DO NOT EXTINGUISH A LEAKING GAS FIRE UNLESS LEAK CAN BE STOPPED. Small fires: Dry chemical, CO2, water spray or alcohol-resistant foam. Large fires: Water spray, fog or alcohol-resistant foam. ... Move containers from fire area if you can do it without risk. Damaged cylinders should be handled only by specialists. Fire involving tanks: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Do not direct water at source of leak or safety devices; icing may occur. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire.
/GUIDE 119: GASES - TOXIC - FLAMMABLE/ Spill or Leak: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). All equipment used when handling the product must be grounded. Fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Do not direct water at spill or source of leak. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. ... If possible, turn leaking containers so that gas escapes rather than liquid. Prevent entry into waterways, sewers, basements or confined areas. Isolate area until gas has dispersed.
/GUIDE 119: GASES - TOXIC - FLAMMABLE/ First Aid: Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. In case of contact with liquefied gas, thaw frosted parts with lukewarm water. In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin. Keep victim warm and quiet. Keep victim under observation. Effects of contact or inhalation may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.
【Reactivities and Incompatibilities】
Acids, halogenated hydrocarbons, oxidizers, moisture, chlorine, ozone, ammonia.
EXPLOSIVE REACTION WITH AMMONIA PLUS HEAT; CHLORINE; CONCN NITRIC ACID; AND OZONE.
An explosion occurs if stibine is heated with ammonia or chlorine. Stibine and concentrated nitric acid explode.
【Other Preventative Measures】
If material not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
Personnel protection: Avoid breathing vapors. Keep upwind. ... Avoid bodily contact with the material. ... Do not handle broken packages unless wearing appropriate personal protective equipment. Wash away any material which may have contacted the body with copious amounts of water or soap and water.
Evacuation: If material leaking (not on fire) consider evacuation from downwind area based on amount of material spilled, location and weather conditions.
SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.
【Protective Equipment and Clothing】
Recommendations for respirator selection. Max concn for use: 1 ppm. Respirator Class(es): Any supplied-air respirator.
Recommendations for respirator selection. Max concn for use: 2.5 ppm. Respirator Class(es): Any supplied-air respirator operated in a continuous flow mode.
Recommendations for respirator selection. Max concn for use: 5 ppm. Respirator Class(es): Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode. Any self-contained breathing apparatus with a full facepiece. Any supplied-air respirator with a full facepiece.
Recommendations for respirator selection. Condition: Emergency or planned entry into unknown concn or IDLH conditions: Respirator Class(es): Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode. Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive-pressure mode.
Recommendations for respirator selection. Condition: Escape from suddenly occurring respiratory hazards: Respirator Class(es): Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern. Any appropriate escape-type, self-contained breathing apparatus.
【Specification】

Storage Features of Antimony (CAS NO.7440-36-0).
?Treasury ventilated low-temperature drying; with acids, food additives and kept separate

【Report】

? Antimony (CAS NO.7440-36-0) and its compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory.

【Disposal Methods】
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

Use and Manufacturing

【Use and Manufacturing】
Methods of Manufacturing

... PREPD BY DISSOLVING ZINC ANTIMONY OR MAGNESIUM ANTIMONY ALLOY IN DIL HYDROCHLORIC ACID. DETAILED DIRECTIONS (INCL PREPN OF ALLOY FROM POWDERED ANTIMONY & MAGNESIUM).
【Sampling Procedures】
NIOSH 6008: Analyte: Stibine; Matrix: air; Sampler: solid sorbent tube (mercury chloride coated silica gel, 1 g/0.5 g); Flow rate: 0.01 to 0.2 l/min; Vol: min: 4 l, max: 50 l; Stability: at least 7 days @ 25 deg C

Biomedical Effects and Toxicity

【Biomedical Effects and Toxicity】
DISTRIBUTION OF ANTIMONY IN BLOOD & TISSUES AFTER INHALATION OF STIBINE GAS WAS INVESTIGATED ... USING RADIOACTIVE TRACER TECHNIQUE. ... /IT WAS/ FOUND THAT RED CORPUSCLES CONTAINED HIGHER CONCN THAN PLASMA.
In the production of lead batteries two antimony compounds occur: in the casting of grids antimony trioxide, and in the formation of lead plates stibine. Seven workers from the grid-casting area and 14 workers from the formation area were examined with regard to the antimony concentration in blood (Sb-B) and urine (Sb-U). Antimony air concentrations (Sb-A) were measured by means of personal air samplers. Urine samples were collected at the end of the working week, at the beginning (U1) and the end (U2) of the shift, and at the beginning of work following a weekend without Sb exposure (U3). At U2 among the casters, the median Sb-A exposure was 4.5 (1.18-6.6.6) ug Sb/cu m and among the formation workers, 12.4 (0.6-41.5) ug Sb/cu m. The exposure in both groups is more than 10 times lower than the present threshold limit values. The median Sb-B concentrations in the preshift samples was 2.6 (0.5-3.4) ug Sb/l for the casters and 10.1 (0.5-17.9) ug Sb/l for the formation workers. The average Sb-U values (U2) were 3.9 (2.8-5.6) ug Sb/g creatinine in the forming area. Our investigation indicates that the two antimony compounds show virtually equal pulmonary absorption and renal elimination. The statistically significant correlations between Sb-A/Sb-B and Sb-A/Sb-U form the basis for proposals regarding appropriate biological exposure limits for occupational antimony exposure. [Kentner M et al; Int Arch Occup Environ Health 67 (2): 119-23 (1995)] PubMed Abstract

Environmental Fate and Exposure Potential

【Environmental Fate/Exposure Summary】
Antimony may be volatilized when in the form of stibine or its methylated derivatives. ... Most of the stibine formed in the sediments reacts in the water column to produce the oxide, resulting in remobilization of stibine.

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