Sulfo Black

Synonyms 2,4-DNP Aldifen Chemox PE Dinofan Fenoxyl Carbon N Maroxol 50 Caswell No. 392 Sulfo Black B Nitro Kleenup... 

Dinitrophenols are a class of synthetic organic chemicals that can exist in six individual forms. Dinitrophenols do not occur naturally in the environment. This profile mainly contains information on the most commercially important dinitrophenol, 2,4-dinitrophenol, which is called DNP in this document. Industries manufacture dinitrophenols. DNP is sold under many trade names, some are Caswell No. 392, Sulfo Black B, and Nitro Kleenup. It is a yellow solid with no known smell. It dissolves slightly in water. DNP present in water and soil as a pollutant does not easily evaporate to air. The taste of DNP is not known. Commercial DNP is primarily used for making dyes, other organic chemicals, and wood preservatives. It is also used to make photographic developer, explosives, and insect control substances. You will find further information on the physical properties and uses of DNP in Chapters 3 and 4 of this profile. 

STANNITE (Mineral). This mineral is a sulfo-stannate of copper and non, sometimes with some zinc, corresponding to the formula. Uii PeSnS j It is tetragonal brittle with uneven fracture hardness, 4 specific gravity, 4.3-4.5 metallic luster color, gray to black, sometimes tarnished by chalcopyiite stieak, black opaque. The mineral occuts associated witli cassilerile, chalcopyiite. tetrahedrite, and pyrite, probably the result of deposition by hot alkaline solution. Stannite occurs in Bohemia Cornwall, England Tasmania Bolivia, and in the United States in South Dakota. It derives its name from the Latin word for tin, stannum. 

Brilliant black BN, black PN E 151 28440 A Tetrasodium-4-acetamido-5-hydroxy-6-[7-sulfo-4-(4-sulfo-phenylazo)-1 -naphthylazo]naphthalene-1,7-disulfonate 28 i7N2Na50 4S4 867.69 ... 

Black Dyes. Water-soluble black ink jet dyes are selected from disazo, polyazo, metal complex, and sulfur dyes [7], For ink-jet systems using the piezo technology, C.I. Direct Black 19, 35255 [6428-31-5] and DirectBlack 154,303865 [54804-85-2 are used. Food Black 2, 27755 [.2118-39-0] was selected for thermal ink-jet printers due to its thermal stability, but this dye exhibits a poor waterfastness. Replacing the sulfo groups by carboxyl groups gave C.I. DirectBlack 195 (1), which has been introduced in commercial printers and shows much improved waterfastness due to pH-dependant differential solubility [3],... 

Acetylamino)-5-hydroxy-6-[[7-sulfo-4-[(4-sulfophenyl) azo]-1-naphthalenyl] azo]-1,7-naphthalenedisulfonic acid, tetrasodium salt. See Brilliant black 1... 

Amino-1-hydroxy-3-sulfo-2-naphthalenyl) azo)-3-((4-((4-amino-6 (or 7)-sulfo-1-naphthalenyl) azo) phenyl) azo)-4-hydroxy-2-naphthalenesulfonic acid, trisodium salt. See Direct black 80... 

Synonyms 4-(Acetylamino)-5-hydroxy-6-[[7-sulfo-4-[(4-sulfophenyl) azo]-1 -naphthalenyl] azo]-1,7-naphthalenedisulfonic acid, tetrasodium salt Black PN Brilliant black Brilliant black BN Cl 28440 Cl food black 1, tetrasodium salt Food black 1 1,7-Naphthalenedisulfonic acid, 4-acetamido-5-hydroxy-6-((7-sulfo-4-((p-sulfophenyl) azo)-1 -naphthyl) azo)-, Na4 salt 1,7-Naphthalenedisulfonic acid, 4-(acetylamino)-5-hydroxy-6-[[7-sulfo-4-[(4-sulfophenyl) azo]-1-naphthalenyl] azo]-, Na4 salt Tetrasodium 1-acetamido-2-hydroxy-3-(4-((4-sulfonatophenylazo)-7-sulfonato-1-naphthylazo)) naphthalene-4,6-disulfonate Ciassification Diazo color Empiricai C28H21N5O14S4 4Na Properties M.w. 871.74... 

Synonyms 6-((7-Amino-1 -hydroxy-3-sulfo-2-naphthalenyl) azo)-3-((4-((4-amino-6 (or 7)-sulfo-1-naphthalenyl) azo) phenyl) azo)-4-hydroxy-2-naphthalenesulfonic acid, trisodium salt Cl 31600 Cl direct black 80 Diazophenyl black BW 2-Naphthalenesulfonic acid, 6-((7-amino-1 -hydroxy-3-sulfo-2-naphthalenyl) azo)-3-((4-((4-amino-6 (or 7)-sulfo-1-naphthalenyl) azo) phenyl) azo)-4-hydroxy-, trisodium salt Phenazo black OB Empihcai C36H26N8O11S3 3Na Properties Bluish-bik. to bIk. powd. odorless sol. 1-10 mg/ml in water sol. < 1 mg/ml in DMSO, 95% ethanol, acetone m.w. 911.81 m.p. > 300 C Precaution Probably combustible incompat. with oxidizing agents, reducing agents Hazardous Decomp. Prods. Heated to decomp., emits toxic fumes of NOx Storage Store under ambient temps. 

Pontachrome Blue-Black R (zinc salt of 4-sulfo-2,2 -dihydroxyazo-naphthalene, C. I. Mordant Black 12) gives an orange-red fluorescence with aluminum salts in acetic acid solution Idn. Limit 2 y A1 in 1 ml). This test appears to be specific for aluminum Be, Zn, and Ga, which behave similarly to aluminum in the fluorescence reaction with morin, do not react with this dyestuff. It is probable that this reaction can be carried out as a spot test. 

The author would like to thank Dr. Yong Xu for his help and contribution with the Mass Spectrometry section, Ms. Lisa Clapp and Mr. Jim Black for their assistance with the X-ray diffraction patterns, Mr. Alexander Okafor for his help with UV-Visi-ble spectrophotometry and Dr. Xin Zhang for her contribution to the HPLC of sulfo-nated copper phthalocyanine. 

TDG may undergo oxidation to TDG sulfoxide, which is conjugated with glutathione to form l,l -sulfonylbis [2-S-(N-acetylcysteinyl)ethane]. Following the p-lyase pathway, the l,l-sulphonylbis[2-(methylsulfinyl)ethane] and l-methylsulfinyl-2-[2-(methylthio)ethylsulfonyl] ethane can be formed (Black and Read, 1995). Figure 56.6 summarizes the pathways of sulfur mustard biotransformation. No sulfo- or glucuronyl-conjugates were detected in urine after i.v. administration of sulfur mustard (Maisonneuve et al., 1993). 

L., gained from the Kraft pulping process (- paper), is sulfonated after isolation from the black liquor with sodium sulfite at 150-200 °C or sulfo-methylated in the presence of formaldehyde below 100 °C. 

Hydroxy-5-[ 2 hydroxy-I-naph thalenyl) azo]-3-[(4-sulfo-l-naphthalenyl)azoyi,7-naphthalenedisulfonic acid, 9CI. C.I. Acid black 32. C.I. 26990. Java fast black F. Phenazo black A... 

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