BENZENEDIAZONIUM,TETRAFLUOROBORATE
- Product Name
- BENZENEDIAZONIUM,TETRAFLUOROBORATE
- CAS No.
- 369-57-3
- Chemical Name
- BENZENEDIAZONIUM,TETRAFLUOROBORATE
- Synonyms
- Phenyldiazonium tetrafluoroborate;Ccris 5461;Sildenafil Impurity 44;Benzenediazonium fluoborate;Benzenediazonium fluoroborate;Diazobenzene tetrafluoroborate;Phenyldiazonium fluoborate (salt);BENZENEDIAZONIUM,TETRAFLUOROBORATE;Benzenediazonium·tetrafluoroboronanion;Benzenediazonium, tetrafluoroboranuide
- CBNumber
- CB41435467
- Molecular Formula
- BF4*C6H5N2
- Formula Weight
- 0
- MOL File
- 369-57-3.mol
BENZENEDIAZONIUM,TETRAFLUOROBORATE Property
- Melting point:
- 121-122 °C (decomp)
- Density
- 1.53 g/cm3(Temp: 25 °C)
- solubility
- fairly sol polar solvents such as acetonitrile, acetone, pyridine, DMF, DMSO, and HMPA with decomposition; slightly sol water; insol hydrocarbons and Et2O; solubilized in nonpolar media by crown ethers.
- color
- colorless solid after recrystallization; turns pink at 80 °C
Safety
- Toxicity
- mmo-sat 10 mmol/L CNREA8 42,1446,82
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P362Take off contaminated clothing and wash before reuse.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- BOR0004345
- Product name
- BENZENEDIAZONIUM TETRAFLUOROBORATE
- Purity
- 95.00%
- Packaging
- 5MG
- Price
- $597.88
- Updated
- 2021/12/16
- Product number
- BOR0004345
- Product name
- BENZENEDIAZONIUM TETRAFLUOROBORATE
- Purity
- 95.00%
- Packaging
- 1G
- Price
- $1359.75
- Updated
- 2021/12/16
- Product number
- BOR0004345
- Product name
- BENZENEDIAZONIUM TETRAFLUOROBORATE
- Purity
- 95.00%
- Packaging
- 5G
- Price
- $4725
- Updated
- 2021/12/16
BENZENEDIAZONIUM,TETRAFLUOROBORATE Chemical Properties,Usage,Production
Uses
Benzenediazonium Tetrafluoroborate is much higher stability than the corresponding chlorides; shock-insensitive; often used when pure, isolated arenediazonium salts are needed; reagent for introducing aryl, arylazo, arylhydrazono, or amino groups; forms fluoroarenes upon heating; building block for heterocycles.
Preparation
Preparative Methods of Benzenediazonium Tetrafluoroborate: The most commonly used procedures consist in diazotization of an aromatic amine (ArNH2) with NaNO2 in aqueous HCl or H2SO4 followed by precipitation of the salt with added NaBF4 or fluoroboric acid. Alternatively, the diazotization can be carried out directly in 40-50% aqueous HBF4. Aromatic amines that do not dissolve in aqueous mineral acids can be reacted with NO+BF4 - in an anhydrous organic solvent or in liquid SO2. This method can also be applied to N-(trimethylsilyl)anilines and for the preparation of those salts that are not easily isolated from water. An improved, high-yielding one-pot procedure employs ArNH2, t-BuONO, and BF3. Et2O in an anhydrous organic solvent, typically CH2Cl2.
Safety Profile
Poison by ingestion andsubcutaneous routes. Questionable carcinogen withexperimental tumorigenic data. Mutation data reported.When heated to decomposition it emits toxic fumes ofNOx and F-.
storage
the dry parent salt of Benzenediazonium Tetrafluoroborate can be stored for more than a month at rt or for a few years at -20 °C under N2 in the dark, but decomposes when exposed to direct sunlight. Rapid recrystallization from warm water or from acetonitrile-Et2O is possible without decomposition. Although arenediazonium tetrafluoroborates, in contrast to the chloride salts, are renowned in general for their enhanced thermal stability and shock-insensitivity, some care should nevertheless be taken. Some salts are known to decompose while drying, e.g. 3-methoxybenzenediazonium, 2-methylbenzenediazonium, and certain heteroarenediazonium tetrafluoroborates. Avoid contact with metals.
BENZENEDIAZONIUM,TETRAFLUOROBORATE Preparation Products And Raw materials
Raw materials
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View Lastest Price from BENZENEDIAZONIUM,TETRAFLUOROBORATE manufacturers
- Product
- Benzenediazonium, tetrafluoroboranuide 369-57-3
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 98.0%
- Supply Ability
- 10000KGS
- Release date
- 2025-02-18
- Product
- BENZENEDIAZONIUM,TETRAFLUOROBORATE 369-57-3
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 98-100%
- Supply Ability
- 1000kg
- Release date
- 2018-08-20