4-Nitrobenzenediazonium Tetrafluoroborate , ≥98.0%(HPLC) , 456-27-9

Synonym(s):
Azoic Diazo No. 37;Fast Red GG salt

CAS NO.：456-27-9

Empirical Formula: C6H4BF4N3O2

Molecular Weight: 236.92

MDL number: MFCD00012005

EINECS: 207-261-1

PRODUCT Properties

• Melting point: 144-148 °C (dec.)
• Density: 1.66 g/cm3(Temp: 25 °C)
• storage temp.: 2-8°C
• solubility: Soluble in acetonitrile and dimethyl sulfoxide.
• form: powder
• color: White to Yellow to Orange
• Water Solubility: almost transparency
• BRN: 3599869
• Exposure limits: ACGIH: TWA 2.5 mg/m3; NIOSH: IDLH 250 mg/m3
• Stability: Stable. Incompatible with strong oxidizing agents, moisture, strong bases. Avoid mechanical shock.

Description and Uses

4-Nitrobenzenediazonium tetrafluoroborate is widely used as a standard reagent in organic synthesis. It is used as a dye for enterochromaffin cells. It is used for the spectrophotometric determination of common aromatic diisocyanates [toluene-2,4-diyl diisocyanate and 4,4'-methylenebis(phenyl isocyanate)] and gallic acid. It is also used for tissue staining and determination of trace phenols.

Safety

• Symbol(GHS): GHS05,GHS07
• Signal word: Danger
• Hazard statements: H302+H312+H332-H314
• Precautionary statements: P260-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338
• Hazard Codes: Xn,Xi,C
• Risk Statements: 20/21/22-36/37/38-34
• Safety Statements: 22-24/25-36/39-45-36/37/39-26
• RIDADR: UN 1759 8/PG 2
• WGK Germany: 3
• RTECS: CZ1723000
• F: 4.3
• Hazard Note: Irritant
• TSCA: Yes
• HazardClass: 8
• PackingGroup: III
• HS Code: 2931900090