Hawley's Condensed Chemical Dictionary Wiley Literati
Hawley's Condensed Chemical Dictionary is a compilation of technical data and descriptive information covering thousands of chemicals and chemical phenomena, trade name products, processes, reactions, products, and related terminology. Provides concise, condensed, and prompt definitions of terms and phenomena in chemistry, biology, biochemistry, and more.
1. Introduction. N-Phenyl-1-naphthylamine (P 1 NA) serves as an antioxidant in various lubrication oils and also as a protective agent in rubbers as well as rubber mixtures. (Koennecker et al., 1998).It was estimated that the annual production of P 1 NA was 5800–6300 tons from 1986 to 1990 in the world (Koennecker et al., 1998).The distribution of P 1 NA was
US3554959A Rubber antioxidants Google Patents
US3554959A US3554959DA US3554959A US 3554959 A US3554959 A US 3554959A US 3554959D A US3554959D A US 3554959DA US 3554959 A US3554959 A US 3554959A Authority US United States Prior art keywords antioxidant rubber composition phenolic solid Prior art date 1966-06-14 Legal status (The legal status is an assumption and is not a legal
N -Phenyl-2-naphthylamine was tested for carcinogenicity by oral administration in mice, rats, hamsters and dogs. No carcinogenicity was reported in most experiments [ref: 1-4]. In one experiment, the total tumour incidence and the incidence of hepatocellular tumours were increased in male mice of one strain [ref: 1].
N-Phenyl-2-naphtylamine (PBN) Chemotechnique
This compound is used as an antioxidant in rubber processing and to provide oxidation and flex-cracking resistance in natural rubber, synthetic rubbers and latexes. It is used as a stabilizer in electrical-insulating silicone enamels and as an antioxidant in other polymers, greases, lubricating oils and transformer oils.
N-Phenyl- 2- naphthylamine, formerly used as a antioxidant in the rubber industry, was selected for toxicology and carcinogenesis studies because at the time of nomination (1976) it had a large annual production and widespread human exposure. Additional reasons for selection included it structural s
N-Phenyl-2-naphthylamine 97% 135-88-6
N-Phenyl-2-naphthylamine 97%; CAS Number: 135-88-6; EC Number: 205-223-9; Synonyms: N-(2-Naphthyl)aniline; Linear Formula: C10H7NHC6H5; find Sigma-Aldrich-178055 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich
2-Naphthalenamine, N-phenyl-. Formula: C 16 H 13 N. Molecular weight: 219.2811. IUPAC Standard InChI: InChI=1S/C16H13N/c1-2-8-15 (9-3-1)17-16-11-10-13-6-4-5-7-14 (13)12-16/h1-12,17H. Copy Sheet of paper on top of another sheet.
Current Intelligence Bulletin 16: Metabolic Precursors
Naphthylamine rubber-chem
Chemical Name: N-Phenyl-2-Naphthylamine Molecular Formula: C16H13N Molecular Weight： 219.3 Gravity: 1.18 CAS NO.: 135-88-6 Package: 25kg/bag Storage Life: 12months
The degradation product 2,5-DTBP is toxic to P. phosphoreum (EC50 3.389×10-5 mol/L) whereas 2,6-DTBP is not harmful (EC50 3.917×10-3 mol/L) as
- What is N-phenyl-2-naphthylamine (p2na) oxidation inhibitor?
- N -Phenyl-2-naphthylamine (P2NA) was widely used as oxidation inhibitor, particularly in rubber manufacturing. Technical-grade P2NA was contaminated with carcinogenic 2-naphthylamine (2NA), and bladder cancer risk in exposed workers was attributed to this impurity.
- How many molecular structures of phenylnaphthylamine antioxidants are there?
- In this study, a total of 302 molecular structures of phenylnaphthylamine antioxidants based on N -phenyl-1-naphthylamine and N -phenyl-2-naphthylamine skeletons with various substituents were modeled by exhaustive methods.
- Which phenyl-1-naphthylamine substituents improve antioxidant activity?
- Moreover, substituent positions 1, 7, and 10 of N -phenyl-1-naphthylamine and 3, 7, and 10 of N -phenyl-2-naphthylamine were found to be the optimal positions for modifications to improve antioxidant activity.
