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Strontium nitrate(CAS No. 10042-76-9)

Strontium nitrate Sr?(NO3)2 (cas 10042-76-9) Molecular Structure

10042-76-9 Structure

Identification and Related Records

【Name】
Strontium nitrate
【CAS Registry number】
10042-76-9
【Synonyms】
Nitric acid, strontium salt
Strontium (II) nitrate
【EINECS(EC#)】
233-131-9
【Molecular Formula】
Sr?(NO3)2 (Products with the same molecular formula)
【Molecular Weight】
211.63
【Inchi】
InChI=1/2NO3.Sr/c2*2-1(3)4;/q2*-1;+2
【InChIKey】
DHEQXMRUPNDRPG-UHFFFAOYSA-N
【Canonical SMILES】
[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Sr+2]
【MOL File】
10042-76-9.mol

Chemical and Physical Properties

【Appearance】
white granules or powder
【Density】
2.99
【Melting Point】
570℃
【Boiling Point】
83 °C at 760 mmHg
【Vapour】
49.8mmHg at 25°C
【Flash Point】
无意义
【Water】
660 g/L (20℃)
【Solubilities】
660 g/L (20 °C) in water
【Color/Form】
WHITE GRANULES OR POWDER
Colorless cubic crystals
【Stability】
Stability Strong oxidizer - contact with combustible material may cause fire. Incompatible with strong reducing agents, combustible material.
【HS Code】
28342980
【Storage temp】
Do not store near combustible materials. Store in a cool, dry place. Store in a tightly closed container.
【Computed Properties】
Molecular Weight:211.6298 [g/mol]
Molecular Formula:N2O6Sr
H-Bond Donor:0
H-Bond Acceptor:6
Rotatable Bond Count:0
Exact Mass:211.88125
MonoIsotopic Mass:211.88125
Topological Polar Surface Area:126
Heavy Atom Count:9
Formal Charge:0
Complexity:18.8
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:3

Safety and Handling

【Hazard Codes】
O:Oxidizingagent;Xn:Harmful;
【Risk Statements】
R22;R8
【Safety Statements 】
S17
【HazardClass】
5.1
【Safety】

Safety Information of Strontium nitrate (CAS NO.10042-76-9):
Hazard Codes: OxidizingO,HarmfulXn,IrritantXi
Risk Statements:8-36/37/38-22
8:Contact with combustible material may cause fire
36/37/38:Irritating to eyes, respiratory system and skin   
22:Harmful if swallowed  
Safety Statements:17-26-36/37/39-36
17:Keep away from combustible material
26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39:Wear suitable protective clothing, gloves and eye/face protection
36:Wear suitable protective clothing       
RIDADR:UN 1507 5.1/PG 3
WGK Germany:2
RTECS:WK9800000
HazardClass:5.1
PackingGroup:III
HS Code:28342980
Hazardous Substances Data:10042-76-9(Hazardous Substances Data)
Moderately toxic by ingestion and intraperitoneal routes. A powerful oxidizer. When heated to decomposition it emits toxic fumes of NOx. See also NITRATES and STRONTIUM COMPOUNDS.

【PackingGroup 】
III
【Sensitive】
Hygroscopic
【Skin, Eye, and Respiratory Irritations】
... HIGHLY IRRITATING TO THE SKIN ... BUT ONLY SLIGHTLY IRRITATING TO THE MUCOSA.
【Transport】
UN 1507
【Fire Fighting Procedures】
Flood with water. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
If fire becomes uncontrollable - consider evacuation of one-half (1/2) mile radius.
【Formulations/Preparations】
GRADES: TECHNICAL, REAGENT.
【DOT Emergency Guidelines】
/GUIDE 140: OXIDIZERS/ Fire or Explosion: These substances will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. May explode from heat or contamination. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard.
/GUIDE 140: OXIDIZERS/ Health: Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or death. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause pollution.
/GUIDE 140: OXIDIZERS/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate closed spaces before entering.
/GUIDE 140: OXIDIZERS/ 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 will only provide limited protection.
/GUIDE 140: OXIDIZERS/ Evacuation: Large spill: Consider initial downwind evacuation for at least 100 meters (330 feet). Fire: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.
/GUIDE 140: OXIDIZERS/ Fire: Small fires: Use water. Do not use dry chemicals or foams. CO2, or Halon may provide limited control. Large fires: Flood fire area with water from a distance. Move containers from fire area if you can do it without risk. Do not move cargo or vehicle if cargo has been exposed to heat. 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. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
/GUIDE 140: OXIDIZERS/ Spill or Leak: Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Do not get water inside containers. Small dry spills: With clean shovel place material into clean, dry container and cover loosely; move containers from spill area. Small liquid spills: Use a non-combustible material like vermiculite or sand to soak up the product and place into a container for later disposal. Large spills: Dike far ahead of liquid spill for later disposal. Following product recovery, flush area with water.
/GUIDE 140: OXIDIZERS/ First Aid: Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. Contaminated clothing may be a fire risk when dry. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. Keep victim warm and quiet. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.
【Other Preventative Measures】
If material /is/ 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.
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】
... HIGHLY IRRITATING TO THE SKIN ... BUT ONLY SLIGHTLY IRRITATING TO THE MUCOSA.
【Specification】

  Strontium nitrate , its cas register number is 10042-76-9. It also can be called Nitrate de strontium ; Nitric acid, strontium salt ; Strontium dinitrate ; Strontium nitrate (Sr(NO3)2) ; Strontium(II) nitrate (1:2) .

【Report】

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

Strontium nitrate is made by reaction of milled strontium carbonate with nitric acid. The nitrate slurry is filtered, crystallized, & centrifuged before drying in a rotary dryer.
A concentrated solution of strontium chloride is treated with a solution of sodium nitrate.
U.S. Imports

(1986) 3.25X10+6 lb
Consumption Patterns

Strontium compound consumption is estimated at about ... 15% as nitrate ...
【Usage】
In signal lights, marine signals, railroad flares, matches, in pyrotechnics (red fire).

Biomedical Effects and Toxicity

【Biomedical Effects and Toxicity】
THE ACCUMULATION & DISTRIBUTION OF (89)STRONTIUM CONTAMINATED WITH STRONTIUM NITRATE SOLUTION WERE DETERMINED IN 4 WK-OLD PIGS. STRONTIUM ACCUMULATES IN SKIN BUT PENETRATES MUCH DEEPER IN NOTICEABLE QUANTITY.
ORALLY ADMIN STRONTIUM NITRATE ACCUMULATED IN SKELETON OF RATS IN PROPORTION TO DOSE, AS DETERMINED IN 4- & 8-WK FEEDING TESTS. SKELETAL STORAGE AVERAGED 2.7% OF DOSE, & THE PERCENTAGE WAS UNINFLUENCED BY SEX OR AGE OR BY LEVEL FED FROM 30-1030 PPM STRONTIUM NITRATE. YOUNG (6-WK) RATS HAD 7.7 PPM STRONTIUM IN BONE ASH BEFORE ADMIN OF STRONTIUM; ADULTS HAD 11.8 PPM. THE BONE RETENTION FACTOR ... (NUMBER OF SR ATOMS/1000 CALCIUM ATOMS DIVIDED BY THE SAME RATIO FOR THE DIET), AVERAGED 0.20, INDICATING A PREFERENTIAL RETENTION OF CALCIUM TO THAT OF STRONTIUM.
STEP-SCAN SCINTIMETRY OF THE SACROILIAC JOINTS AND SPINE WAS PERFORMED IN PATIENTS WITH ESTABLISHED OR SUSPECTED ANKYLOSING SPONDYLITIS 2 WEEKS AFTER INJECTION OF 100 MICROCURIES OF RADIOACTIVE STRONTIUM NITRATE (85). STRONTIUM UPTAKE OF (85) STRONTIUM WAS HIGH IN CASES WITH EARLY ROENTGENOGRAPHIC CHANGES OF THE SACROILIAC JOINTS AND MINIMAL SPINAL INVOLVEMENT.

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