10042-76-9
Strontium nitrate
CAS: 10042-76-9
Molecular Formula: N2O6Sr
10042-76-9 - Names and Identifiers
| Name | Strontium nitrate |
| Synonyms | STRONTIUM NITRATE Strontium nitrate nitratedestrontium strontium dinitrate Strontium (II) nitrate STRONTIUM (II) NITRATE strontium standard for ic strontium nitrate solution Nitric acid, strontium salt strontium nitrate, puratronic |
| CAS | 10042-76-9 |
| EINECS | 233-131-9 |
| InChI | InChI=1/NO3.Sr/c2-1(3)4;/q-1;+2 |
| InChIKey | DHEQXMRUPNDRPG-UHFFFAOYSA-N |
10042-76-9 - Physico-chemical Properties
| Molecular Formula | N2O6Sr |
| Molar Mass | 211.63 |
| Density | 2.99 |
| Melting Point | 570 °C (lit.) |
| Boling Point | 645 °C |
| Water Solubility | 660 g/L (20 ºC) |
| Solubility | 660g/l |
| Vapor Presure | 49.8mmHg at 25°C |
| Appearance | Solid |
| Specific Gravity | 2.99 |
| Color | White |
| Odor | Odorless |
| Merck | 14,8845 |
| PH | 5-7 (50g/l, H2O, 20℃) |
| Storage Condition | Store at +5°C to +30°C. |
| Stability | Stability Strong oxidizer - contact with combustible material may cause fire. Incompatible with strong reducing agents, combustible material. |
| Sensitive | Hygroscopic |
| Physical and Chemical Properties | Properties colorless cubic crystal or white equiaxed crystal powder. melting point 570 ℃ relative density 2.986 solubility soluble in water, liquid ammonia, slightly soluble in ethanol and acetone. |
| Use | For the manufacture of signal lights, flares, flame tubes, TV tubes for the red luminous agent, Red pyrotechnic, optical glass and fluorescent body |
10042-76-9 - Risk and Safety
| Risk Codes | R8 - Contact with combustible material may cause fire R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed |
| Safety Description | S17 - Keep away from combustible material. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S36 - Wear suitable protective clothing. |
| UN IDs | UN 1507 5.1/PG 3 |
| WGK Germany | 2 |
| RTECS | WK9800000 |
| TSCA | Yes |
| HS Code | 28342980 |
| Hazard Class | 5.1 |
| Packing Group | III |
| Toxicity | LD50 i.p. in rats: 540 mg/kg, Cochran et al., Arch. Ind. Hyg. 1, 637 (1950) |
10042-76-9 - Upstream Downstream Industry
| Raw Materials | Sulfuric acid Strontium carbonate,nanometre Nitric acid |
| Downstream Products | Strontium carbonate,nanometre |
10042-76-9 - Nature
Open Data Verified Data
white granules or powder. Melting point 570 °c Id 2.99. Easy to absorb moisture. Soluble in 1.5 water, the aqueous solution is neutral, slightly soluble in anhydrous ethanol, acetone. Crystallization at low temperature contains 4 molecules of crystal water. Strong Oxidation and irritation. Friction or impact with organic matter can cause combustion or explosion. In case of high temperature or contact with organic matter, friction or impact, can cause combustion or explosion.
Last Update：2024-01-02 23:10:35
10042-76-9 - Preparation Method
Open Data Verified Data
- Celite method: add 200 mesh Celite ore powder into the calcium remover, and then add hydrochloric acid and appropriate amount of water, so that the pH value of the solution is 1~2, after heating to near boiling for 2H with stirring, the calcium carbonate in the ore is converted into calcium chloride and transferred into solution. Put the material into a calcium-removing scrubber, decant the clear liquid after settling, repeatedly wash the slurry with hot water until the solution is neutral, send the slurry to the converter, add the saturated solution of soda ash, and heat it with steam, the metathesis reaction was carried out for 2H with stirring until the pH of the reaction solution was 10. After sedimentation, the clear liquid was decanted, and the precipitate was washed repeatedly with hot water until the pH of the solution was 7-8 to remove sodium sulfate and sodium carbonate. The slurry was fed to the reactor, and 98% nitric acid was slowly added with stirring until the pH of the reaction solution was 4 to 5. After pressure filtration, the filtrate is concentrated by evaporation to precipitate crystals, centrifuged while hot, and dried at 100-150 ° C. To obtain a finished strontium nitrate product.
- strontium carbonate method: strontium carbonate is added into the reactor, and 98% nitric acid is slowly added under stirring for reaction until the pH value of the reaction solution is 4-5. After pressure filtration, the filtrate is sent to an evaporator to be evaporated and concentrated to precipitate crystals, centrifuged while hot, and dried at 100 N150 ° C. To obtain a strontium nitrate finished product.
Last Update：2022-01-01 09:03:28
10042-76-9 - Use
Open Data Verified Data
spectroscopic reagents. It is also a tube cathode material, pyrotechnic material, etc.
Last Update：2022-01-01 09:03:28
10042-76-9 - Safety
Open Data Verified Data
- rats were intraperitoneally injected with LD0:540mg/kg. It has a stimulating effect on the eyes, skin and mucous membranes. Staff should be protected. If the skin and eyes are touched, they should be immediately rinsed with plenty of water.
- packed in plastic woven bags lined with polyethylene plastic bags, each with a net weight of 25kg; Packed in iron barrels lined with plastic bags, each with a net weight of 50kg. It should be obvious on the package. Oxidant "sign. It belongs to class I inorganic oxidant, with Hazard code number: GB 51 class 51059. UNN0.1507; IMDG CODE page 5187, Class 3. Should be stored in a cool, ventilated, dry warehouse. Storage temperature should not exceed 30 ℃. Should be moisture-proof. It is not allowed to be stored and mixed with organic matter and flammable materials, and should be protected from rain and sun exposure during transportation. Handling should be careful to prevent packaging rupture. Fire, water, sand, all kinds of fire extinguishing, but to avoid the flow of aqueous solution to the flammable goods. Toxicity and protection: inhalation of strontium nitrate dust can cause moderate diffuse changes in the lungs. Contact with the skin causes sensitization and the occurrence of eczematous dermatitis. The maximum allowable concentration is 1mg/m3. Production workers should wear work clothes, masks, latex gloves and other labor protection articles to prevent inhalation and exposure to strontium nitrate dust to protect respiratory organs and skin.
Last Update：2022-01-01 09:03:29
10042-76-9 - Reference Information
| pH indicator color change ph range | 5.0 - 7.0 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| solubility in water (g/100ml) | dissolution grams per 100ml of water at different temperatures (℃): 39.5g/0 ℃;52.9g/10 ℃;69.5g/20 ℃;88.7g/30 ℃;89.4g/40 ℃ 93.4g/60 ℃;96.9g/80 ℃;98.4g/90 ℃ |
| toxicity | inhalation of strontium nitrate dust will cause moderate diffuse intersex changes in the lungs. Contact with skin causes sensitization and eczema dermatitis. The maximum allowable concentration is l mg/m3. Protective measures Production workers should wear work clothes, masks and latex gloves and other labor protection products to prevent inhalation and contact with strontium nitrate dust to protect respirators and skin. |
| Use | Used to make signal lights, signal bombs, flame tubes, red luminous agents for TV picture tubes, red fireworks, optical glass and phosphors, etc. Used to make red fireworks. Used to manufacture signal lights for waterways, railways, airports, etc. The defense industry is used to manufacture signal bombs, tracer bombs, and flame tubes. It is also used to make red luminous agent and optical glass for TV picture tube. It is also used in medicine and manufacturing phosphors. analytical reagents. Electron tube cathode material. Fireworks, land and sea traffic signals. Signal light material. |
| production method | celestit method adds celestit ore powder pulverized to 200 purpose to a calcium remover, then adds hydrochloric acid and appropriate amount of water to make the Ph value of the solution 1~2. after heating to nearly boiling for 2 hours under stirring, the calcium carbonate in the ore is turned into calcium chloride and transferred into the solution. Put the material into a calcium removal scrubber, decant and remove the clear liquid after settling, repeatedly wash the slurry with hot water until the solution is neutral, send the slurry to the converter, add a saturated soda ash solution, heat with steam, and perform a metathesis reaction under stirring for 2 hours until Ph = 10 of the reaction solution. After settling, the clear liquid is decanted, and the precipitation is repeatedly washed with hot water until the Ph value of the solution is 7~8 to wash out sodium sulfate and sodium carbonate. The slurry is sent to the reactor, and 98% nitric acid is slowly added under stirring until the Ph value of the reaction solution is 4~5. After pressure filtration, the filtrate is evaporated, concentrated and crystallized, centrifuged while hot, and dried at 100~150 ℃ to obtain a finished product of strontium nitrate. Its SrSO4 Na2CO3 → SrCO3 ↓ Na2SO4SrCO3 2HNO3 → Sr(NO3)2 H2O CO2 ↑ strontium carbonate method adds strontium carbonate to the reactor, slowly adds 98% nitric acid under stirring for reaction, until the Ph value of the reaction solution is 4~5, after pressure filtration, the filtrate is sent to the evaporator for evaporation, concentration and crystallization, centrifugation while hot, and drying at 100~150 ℃ to produce strontium nitrate finished product. Its SrCO3 2HNO3 → Sr(NO3)2 H2O CO2 ↑ |
| category | oxidant |
| toxicity classification | poisoning |
| acute toxicity | oral-rat LD50: 2750 mg/kg; Oral-mouse LD50: 1826 mg/kg |
| explosive hazard characteristics | blastable when mixed with organic matter, reducing agent, sulfur, phosphorus and other flammable materials |
| flammability hazard characteristics | combustible in case of organic matter, reducing agent, charcoal, sulfur, phosphorus and other flammable materials; combustion produces toxic nitrogen oxide smoke |
| storage and transportation characteristics | warehouse ventilation; light loading and unloading; separate from organic matter, reducing agent, charcoal, sulfur and phosphorus combustibles |
| fire extinguishing agent | mist water |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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