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Phthalonitrile

Phthalonitrile Structure
Phthalonitrile
  • CAS No.91-15-6
  • Chemical Name:Phthalonitrile
  • CBNumber:CB2773751
  • Molecular Formula:C8H4N2
  • Formula Weight:128.13
  • MOL File:91-15-6.mol
Phthalonitrile Property
  • Melting point: :137-139 °C (lit.)
  • Boiling point: :227.54°C (rough estimate)
  • Density  :1.24
  • vapor pressure  :<1 Pa (25 °C)
  • refractive index  :1.6231 (estimate)
  • Flash point: :162°C
  • storage temp.  :Store below +30°C.
  • solubility  :benzene: 50 mg/mL, clear
  • form  :Crystals or Crystalline Powder
  • color  :White to beige
  • PH :7 (H2O)
  • Water Solubility  :0.56 g/L (25 ºC)
  • BRN  :775028
  • Stability: :Stable. Incompatible with strong bases, strong acids, strong oxidizing agents, strong reducing agents.
  • CAS DataBase Reference :91-15-6(CAS DataBase Reference)
  • EWG's Food Scores :1
  • FDA UNII :978627YAJU
  • NIST Chemistry Reference :Phthalonitrile(91-15-6)
  • EPA Substance Registry System :1,2-Benzenedicarbonitrile (91-15-6)
Safety
  • Hazard Codes  :T
  • Risk Statements  :25-23/24/25
  • Safety Statements  :36/37/39-45-28A
  • RIDADR  :UN 3439 6.1/PG 2
  • WGK Germany  :1
  • RTECS  :TI8575000
  • Autoignition Temperature :>580 °C
  • TSCA  :Yes
  • HazardClass  :6.1
  • PackingGroup  :II
  • HS Code  :29269095
  • Hazardous Substances Data :91-15-6(Hazardous Substances Data)
  • Toxicity :LD50 orally in Rabbit: 85 mg/kg
  • NFPA 704:
    0
    2 0
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordDanger
  • Hazard statements H311-H300
  • Precautionary statements P264-P301+P310-P280h-P301+P310a-P312a-P321-P405-P501a
Phthalonitrile Price More Price(12)
  • Brand: Sigma-Aldrich
  • Product number: 171719
  • Product name : 1,2-Dicyanobenzene
  • Purity: 98%
  • Packaging: 100g
  • Price: $23.9
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 8.00593
  • Product name : Phthalonitrile
  • Purity: for synthesis
  • Packaging: 100 g
  • Price: $27.66
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 8.00593
  • Product name : Phthalonitrile
  • Purity: for synthesis
  • Packaging: 500 g
  • Price: $55.31
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 171719
  • Product name : 1,2-Dicyanobenzene
  • Purity: 98%
  • Packaging: 500g
  • Price: $81
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: TCI Chemical
  • Product number: P0404
  • Product name : Phthalonitrile
  • Purity: >99.0%(GC)
  • Packaging: 25g
  • Price: $14
  • Updated: 2021/03/22
  • Buy: Buy

Phthalonitrile Chemical Properties,Usage,Production

  • Chemical Properties Phthalonitrile is a crystalline powder having a faint grayish yellow color and a slighty aromatic odor, similar to benzonitrile. Phthalonitrile was first described in 1896 when it was isolated during the diazotization of 2-aminobenzonitrile. The compound is sparingly soluble in water (ca. 1 g/L) and soluble in acetone, nitrobenzene, and benzonitrile. It cannot be distilled and polymerizes if heated above the melting point. It is not explosive and is difficult to ignite, but the dust can explode.
  • Uses Phthalonitrile is used as a starting material for producing phthalocyanine pigments (→ Phthalocyanines), fluorescent brightners, and photographic sensitizers.
  • Preparation Phthalonitrile can be produced from phthalic acid, phthalic anhydride, phthalamide, or phthalimide by reaction with ammonia and elimination of water at 300–500°C in the gas phase in the presence of a catalyst.
    preparation of Phthalonitrile
    In a single-stage continuous process, o-xylene is converted to phthalonitrile by reaction with ammonia and oxygen in the gas phase in a fluidized-bed reactor. Generally, metal oxide mixtures containing vanadium, antimony, chromium, and molybdenum, with further active components such as iron, tungsten, and alkali-metal oxides, on an alumina or silica support are used as catalysts.
  • Reactions The route from o-phthalodinitrile can be represented 4C8H4N2 +M → MPc, where M is a bivalent metal, metal halide, metal alcoholate, or an equivalent amount of metal of valence other than two in a 4:1 molar ratio.
  • Safety Profile Poison by ingestion, subcutaneous, and intraperitoneal routes. Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits toxic fumes of CN- and NOx. See also NITRILES.
  • Purification Methods Crystallise the nitrile from EtOH, toluene or *benzene. It has also been distilled under high vacuum. It is steam volatile. [Beilstein 9 H 815, 9 II 602, 9 III 4199, 9 IV 3268.]
Phthalonitrile Preparation Products And Raw materials
Raw materials
Preparation Products
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91-15-6, PhthalonitrileRelated Search:
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  • PHTHALONITRILE FOR SYNTHESIS 500 G
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  • 1,2-Benzendikarbonitril
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  • Phthalonitrile ISO 9001:2015 REACH
  • 91-15-6
  • 914-15-6
  • Organic Building Blocks
  • Nitrogen Compounds
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  • Phthalonitriles & Naphthalonitriles
  • Cyanides/Nitriles
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  • C8 to C9
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  • C8 to C9