2-Nitroso-1-naphthol

Warning

H315 (97.8%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 46 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Chemical: 1-Naphthalenol, 2-nitroso-

1-Naphthalenol, 2-nitroso-: Does not have an individual approval but may be used under an appropriate group standard

A NEW ENZYMIC METHOD WAS DEVELOPED FOR THE REMOVAL OF PHENOLS & ANILINES FROM INDUSTRIAL WASTEWATERS. THIS INVOLVES THE TREATMENT OF AQ SOLN CONTAINING THE POLLUTANTS WITH HORSERADISH PEROXIDASE & H2O2. SUCH TREATMENT RESULTS IN PPTN OF PHENOLS & AROMATIC AMINES FROM WATER AS A RESULT OF THEIR ENZYMIC CROSSLINKING.

PARTIALLY PURIFIED, UNTREATED RAT LIVER CYTOSOL CONTAINS AT LEAST 2 ENZYMES WHICH RAPIDLY REDUCE THE C-NITROSO CARCINOGEN, 2-NITROSO-1-NAPHTHOL IN THE PRESENCE OF NADPH OR NADH AT PH 6-7. 2-NITROSO-1-NAPHTHOL WAS NOT REDUCED BY RAT KIDNEY OR BRAIN CYTOSOL, PLASMA, OR HEMOGLOBIN.

Used as a dye oxidation base for fur, cotton, jute, and viscose; [HSDB]

Fur Dressing and Dyeing [Category: Industry]

OXIDATION BASE FOR DYE-EG, FOR FUR, COTTON, JUTE, VISCOSE

(1979) No Data

(1981) No Data

(1979) No Data

(1981) No Data

(1979) NO EVIDENCE OF COMMERCIAL PRODN IN U.S.

(1981) NO EVIDENCE OF COMMERCIAL PRODN IN U.S.

1-Naphthalenol, 2-nitroso-: ACTIVE

A 0.5% 2-NITROSO-1-NAPHTHOL SOLN IN DIMETHYL CARBONATE WAS STUDIED FOR ITS POTENTIAL AS TRACE METAL DETECTION REAGENT. A METAL OBJECT MUST BE HELD FOR APPROX 1.5 MIN FOR SATISFACTORY COLOR & PATTERN FORMATION TO BE OBSERVED BY THIS PROCEDURE. BEST RESULTS WERE OBTAINED ON INDIVIDUALS WITH HIGH LEVELS OF PERSPIRATION.

HYDROGEN SULFIDE IS REMOVED FROM WASTE GAS BY CATALYTIC OXIDATION WITH A NONTOXIC ALKALINE SOLN CONTAINING AN AROMATIC NITROSO COMPD, A HYDROXY AMINO COMPD, AN FE SALT, & A CHELATING AGENT; & THE SPENT SOLN IS REGENERATED BY OXIDATION WITH A GAS CONTAINING OXYGEN. THUS, A WASTE GAS CONTAINING 3300 PPM H2S WAS SCRUBBED COUNTERCURRENTLY WITH A SOLN (PH 9) CONTAINING 0.01 MOL EACH OF 2-NITROSO-1-NAPHTHOL (IN 4-SULFONIC ACID), FESO4, EDTA, & CITRIC ACID IN A TOWER CONTAINING RASCHIG RINGS.

A TRACE METAL DETECTION TECHNIQUE FOR USE IN FORENSIC SCIENCE IS DESCRIBED WHICH UTILIZES 2-NITROSO-1-NAPHTHOL. A 0.5% SOLN OF 2-NITROSO-1-NAPHTHOL IN METHYL CARBONATE IS SPRAYED ON SKIN AFTER HOLDING VARIOUS METALLIC OBJECTS, WITH THE IMMEDIATE APPEARANCE OF COLOR THAT MAXIMIZES WITHIN MIN. 2-NITROSO-1-NAPHTHOL WAS AS SENSITIVE TO FE & CU AS THE NORMAL REAGENT 8-HYDROXYQUINOLINE, BUT LESS SENSITIVE BY A FACTOR OF APPROX 100 TO ZN.