クロラゾール ブラック BH

Direct blue 2 is a dark blue-black powder. (NTP, 1992)

Dark blue-black solid; [CAMEO]

Warning

H315 (50%): 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 2 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Danger

H350: May cause cancer [Danger Carcinogenicity]

Chemical: 2,7-Naphthalenedisulfonic acid, 5-amino-3-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxy-, trisodium salt

S - indicates a substance that is identified in a final Significant New Use Rule.

2,7-Naphthalenedisulfonic acid, 5-amino-3-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxy-, trisodium salt: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.

DIRECT BLUE 2 is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.

Skin Irrit. 2 (50%)

Carcinogenicity - category 1B

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with a strong soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)

Used as dye for cellulose fibers, leather, and paper; [HSDB]

Pulp and Paper Processing [Category: Industry]

DYE FOR CELLULOSE FIBERS, LEATHER AND PAPER

(1977) No Data

(1979) No Data

(1978) 1.40X10+7 GRAMS (PRINCPL CUSTMS DISTS)

(1979) 3.19X10+7 GRAMS (PRINCPL CUSTMS DISTS)

(1977) PROBABLY GREATER THAN 4.54X10+6 GRAMS

(1978) 9.92X10+7 GRAMS

2,7-Naphthalenedisulfonic acid, 5-amino-3-[2-[4'-[2-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl][1,1'-biphenyl]-4-yl]diazenyl]-4-hydroxy-, sodium salt (1:3): ACTIVE

SOL DYE TAKEN UP DIRECTLY BY FIBERS, PRESUMABLY DUE TO SELECTIVE ADSORPTION. USUALLY APPLIED TO COTTON OR UNION GOODS (COTTON-WOOL MIXT). DYEING ASSISTANTS SUCH AS SODIUM CHLORIDE OR SODIUM SULFATE ARE USED TO OBTAIN HIGHER CONCN OF DYE ON FIBERS. /DIRECT DYE/