Solvent Red 1

278.31

278.31

214-968-9

J95C286WK5

45194|11232

DTXSID3061635

54.18000

4.96940

Odorless, red powder.

1.19g/cm3

183 °C

443.7ºC at 760mmHg

222.2ºC

1.616

Water solubility = 3.3X10-4 mg/L at 25 deg C

Keep in a cool, dry location. Keep containers closed.

0mmHg at 25°C

NONH for all modes of transport

2

36/37/38

22-24/25-36-26-S24/25-S22

GE5844740

Xi

Stable at normal temperatures and pressures.

P201, P202, P281, P308+P313, P405, P501

H350

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

|Danger|H350 (91.67%): May cause cancer [Danger Carcinogenicity]|P201, P202, P281, P308+P313, P405, and P501|Aggregated GHS information provided by 39 companies from 4 notifications to the ECHA C&L Inventory.|Warning|H351: Suspected of causing cancer [Warning Carcinogenicity]

Oil pink's production and use as a smoke dye(1) and as a dye to color plastics(2) may result in its release to the environment through various waste streams(SRC).

TERRESTRIAL FATE: Based on a recommended classification scheme(1), an estimated Koc value of 290,000(SRC), determined from a measured log Kow(2) and a recommended regression-derived equation(3), indicates that oil pink will be immobile in soil(SRC). On soil surfaces, direct and indirect photolysis should be major degradative fate processes for this compound(4). Reductive cleavage of the azo bond will be important in reducing environments(5). Oil pink's values for vapor pressure(6,SRC) and Henry's Law constant(7,SRC) indicate that volatilization from dry and moist soil surfaces is not likely to be a major fate process for this compound(SRC).|AQUATIC FATE: Based on a recommended classification scheme(1), an estimated Koc value of 290,000(SRC), determined from a measured log Kow(2) and a recommended regression-derived equation(3), indicates that oil pink will adsorb to suspended solids and sediment(SRC) in the water column. Reductive cleavage of the azo bond will be important in reducing environments(4). Oil pink will not volatilize from water surfaces based on an estimated Henry's Law constant of 1.1X10-10 atm-cu m/mole(SRC), developed using a fragment constant estimation method(5). An estimated BCF value of 290,000(3,SRC), from a measured log Kow(2), suggests that oil pink will bioconcentrate in aquatic organisms(SRC), according to a recommended classification scheme(6). On water surfaces, direct and indirect photolysis may be major degradative fate processes for this compound(7).|ATMOSPHERIC FATE: According to a suggested classification scheme(1), an estimated vapor pressure of 6.3X10-9 mm Hg at 25 °C(2,SRC) indicates that oil pink will exist solely in the particulate phase in the ambient atmosphere. Particulate-phase oil pink may be physically removed from the air by dry deposition(SRC).

Oil pink applied to EPA No. 3 soil (organic carbon = 1.53%, pH = 6.65) at a depth of 1 mm and exposed to natural sunlight was initially rapidly degraded with 60% degradation within 7 hours; within 55 hours 65% of this compound had been degraded(1). Photolysis may occur through sensitized photo-oxygenation via the reaction with singlet oxygen (ratio of indirect to direct photolysis = 25.7)(1). Solution-phase photo-oxidation of oil pink proceeds by reaction of singlet oxygen with the hydrazone tautomer to give the unstable hydroperoxide which decomposes to 1,2-naphthoquinone and the diazonium salt. The diazonium salt is hydrolyzed to give guaiacol(1). The primary products resulting from the addition of oil pink to anoxic sediments are o-anisidine and 1-amino-2-naphthol due to the reductive cleavage of the azo bond(2).

An estimated BCF value of 290,000 was calculated for oil pink(SRC), using a measured log Kow of 7.5(1) and a recommended regression-derived equation(2). According to a recommended classification scheme(3), this BCF value indicates that bioconcentration in aquatic organisms will be an important fate process(SRC).

The Koc of oil pink is estimated as approximately 290,000(SRC), using a measured log Kow of 7.5(1) and a regression-derived equation(2,SRC). According to a recommended classification scheme(3), this estimated Koc value indicates that oil pink will be immobile in soil(SRC).

The Henry's Law constant for oil pink is estimated as 1.1X10-10 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This value indicates that oil pink will be essentially nonvolatile from water surfaces(2,SRC). Oil pink's values for vapor pressure(3) and Henry's Law constant(1,SRC) indicate that volatilization from dry and moist soil surfaces is not likely to be a major fate process for this compound(SRC).

1-(2-methoxyphenylazo)-2-naphthol

2-Naphthalenol, 1-[2-(2-methoxyphenyl)diazenyl]-: ACTIVE|SUDAN. TRADEMARK FOR A SERIES OF DYESTUFFS; SOL IN HYDROCARBONS /SUDAN/

Cosmetics -> Hair dyeing

Food Additives -> COLOUR;