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C.I. DIRECT BLACK 38

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The Chemical Identifier fields include common identification numbers, the NFPA diamond U.S. Department of Transportation hazard labels, and a general description of the chemical. The information in CAMEO Chemicals comes from a variety of data sources.
CAS Number UN/NA Number
  • 1937-37-7
none
DOT Hazard Label USCG CHRIS Code
data unavailable none
NIOSH Pocket Guide International Chem Safety Card
none none
NFPA 704
data unavailable
General Description
PHYSICAL DESCRIPTION: Gray-black microcrystals or black powder. (NTP, 1992)

The Hazard fields include special hazard alerts air and water reactions, fire hazards, health hazards, a reactivity profile, and details about reactive groups assignments and potentially incompatible absorbents. The information in CAMEO Chemicals comes from a variety of data sources.
Reactivity Alerts
  • Explosive
Air & Water Reactions
Azo dyes can be explosive when suspended in air at specific concentrations. Slightly soluble in water.
Fire Hazard
Flash point data for this chemical are not available; however, it is probably combustible. (NTP, 1992)
Health Hazard
ACUTE/CHRONIC HAZARDS: This compound may be absorbed through the skin. When heated to decomposition it emits very toxic fumes of nitrogen oxides, disodium oxide and sulfur oxides. (NTP, 1992)
Reactivity Profile
C.I. DIRECT BLACK 38 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 may form 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 form with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. Incompatible with strong acids [NTP, 1992)].
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

No information available.

The Response Recommendation fields include isolation and evacuation distances, as well as recommendations for firefighting, non-fire response, protective clothing, and first aid. The information in CAMEO Chemicals comes from a variety of data sources.
Isolation and Evacuation
No information available.
Firefighting
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)
Non-Fire Response
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 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.

STORAGE PRECAUTIONS: You should store this chemical under ambient temperatures, and keep it away from oxidizing materials. (NTP, 1992)
Protective Clothing
MINIMUM PROTECTIVE CLOTHING: If Tyvek-type disposable protective clothing is not worn during handling of this chemical, wear disposable Tyvek-type sleeves taped to your gloves.

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with a combination filter cartridge, i.e. organic vapor/acid gas/HEPA (specific for organic vapors, HCl, acid gas, SO2 and a high efficiency particulate filter). (NTP, 1992)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
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.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital.

OTHER: Since this chemical is a known or suspected carcinogen you should contact a physician for advice regarding the possible long term health effects and potential recommendation for medical monitoring. Recommendations from the physician will depend upon the specific compound, its chemical, physical and toxicity properties, the exposure level, length of exposure, and the route of exposure. (NTP, 1992)

The Physical Property fields include properties such as vapor pressure and boiling point, as well as explosive limits and toxic exposure thresholds The information in CAMEO Chemicals comes from a variety of data sources.

Note: For Vapor Density and Specific Gravity, comparing the value to 1.0 can tell you if the chemical will likely sink/rise in air or sink/float in fresh water (respectively). Short phrases have been added to those values below as an aid. However, make sure to also consider the circumstances of a release. The Vapor Density comparisons are only valid when the gas escaping is at the same temperature as the surrounding air itself. If the chemical is escaping from a container where it was pressurized or refrigerated, it may first escape and behave as a heavy gas and sink in the air (even if it has a Vapor Density value less than 1). Also, the Specific Gravity comparisons are for fresh water (density 1.0 g/mL). If your spill is in salt water (density about 1.027 g/mL), you need to adjust the point of comparison. There are some chemicals that will sink in fresh water and float in salt water.
Chemical Formula:
  • C34H27N9O7S2.2Na
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point: Decomposes (NTP, 1992)
Vapor Pressure: data unavailable
Vapor Density (Relative to Air): data unavailable
Specific Gravity: data unavailable
Boiling Point: Decomposes (NTP, 1992)
Molecular Weight: 781.78 (NTP, 1992)
Water Solubility: 1 to 5 mg/mL at 68°F (NTP, 1992)
Ionization Energy/Potential: data unavailable
IDLH: data unavailable

AEGLs (Acute Exposure Guideline Levels)

No AEGL information available.

ERPGs (Emergency Response Planning Guidelines)

No ERPG information available.

PACs (Protective Action Criteria)

No PAC information available.

The Regulatory Information fields include information from the U.S. Environmental Protection Agency's Title III Consolidated List of Lists, the U.S. Cybersecurity and Infrastructure Security Agency's Chemical Facility Anti-Terrorism Standards, and the U.S. Occupational Safety and Health Administration's Process Safety Management of Highly Hazardous Chemicals Standard List (see more about these data sources).

EPA Consolidated List of Lists

Regulatory Name CAS Number/
313 Category Code
EPCRA 302
EHS TPQ
EPCRA 304
EHS RQ
CERCLA RQ EPCRA 313
TRI
RCRA
Code
CAA 112(r)
RMP TQ
C.I. Direct Black 38 1937-37-7 313

(EPA List of Lists, 2022)

CISA Chemical Facility Anti-Terrorism Standards (CFATS)

No regulatory information available.

OSHA Process Safety Management (PSM) Standard List

No regulatory information available.

This section provides a listing of alternate names for this chemical, including trade names and synonyms.
  • AHCO DIRECT BLACK GX
  • AIREDALE BLACK ED
  • AIZEN DIRECT DEEP BLACK EH
  • AIZEN DIRECT DEEP BLACK GH
  • AIZEN DIRECT DEEP BLACK RH
  • AMANIL BLACK GL
  • AMANIL BLACK WD
  • 4-AMINO-3-((4'-((2,4-DIAMINOPHENYL)AZO)(1,1'-BIPHENYL)-4-YL)AZO)-5-HYDROXY-6-(PHENYLAZO)-2,7-NAPHTHALENEDISULFONIC ACID DISODIUM SALT
  • APOMINE BLACK GX
  • ATLANTIC BLACK BD
  • ATLANTIC BLACK C
  • ATLANTIC BLACK E
  • ATLANTIC BLACK EA
  • ATLANTIC BLACK GAC
  • ATLANTIC BLACK GG
  • ATLANTIC BLACK GXCW
  • ATLANTIC BLACK GXOO
  • ATLANTIC BLACK SD
  • ATUL DIRECT BLACK E
  • AZINE DEEP BLACK EW
  • AZOCARD BLACK EW
  • AZOMINE BLACK EWO
  • BELAMINE BLACK GX
  • BENCIDAL BLACK E
  • BENZANIL BLACK E
  • BENZO DEEP BLACK E
  • BENZO LEATHER BLACK E
  • BENZOFORM BLACK BCN-CF
  • BLACK 2EMBL
  • BLACK 4EMBL
  • BRASILAMINA BLACK GN
  • BRILLIANT CHROME LEATHER BLACK H
  • C.I. 30235
  • C.I. DIRECT BLACK 38
  • C.I. DIRECT BLACK 38, DISODIUM SALT
  • CALCOMINE BLACK
  • CALCOMINE BLACK EXL
  • CARBIDE BLACK E
  • CHLORAMINE BLACK C
  • CHLORAMINE BLACK EC
  • CHLORAMINE BLACK ERT
  • CHLORAMINE BLACK EX
  • CHLORAMINE BLACK EXR
  • CHLORAMINE BLACK XO
  • CHLORAMINE CARBON BLACK S
  • CHLORAMINE CARBON BLACK SJ
  • CHLORAMINE CARBON BLACK SN
  • CHLORAZOL BLACK E
  • CHLORAZOL BLACK E (BIOLOGICAL STAIN)
  • CHLORAZOL BLACK EA
  • CHLORAZOL BLACK EN
  • CHLORAZOL BURL BLACK E
  • CHLORAZOL LEATHER BLACK ENP
  • CHLORAZOL SILK BLACK G
  • CHLOROZOL BLACK E
  • CHROME LEATHER BLACK E
  • CHROME LEATHER BLACK EC
  • CHROME LEATHER BLACK EM
  • CHROME LEATHER BLACK G
  • CHROME LEATHER BRILLIANT BLACK ER
  • COIR DEEP BLACK C
  • COLUMBIA BLACK EP
  • CORANIL DIRECT BLACK F
  • DIACOTTON DEEP BLACK
  • DIACOTTON DEEP BLACK RX
  • DIAMINE DEEP BLACK EC
  • DIAMINE DIRECT BLACK E
  • DIAPHTAMINE BLACK V
  • DIAZINE BLACK E
  • DIAZINE DIRECT BLACK E
  • DIAZINE DIRECT BLACK G
  • DIAZOL BLACK 2V
  • DIPHENYL DEEP BLACK G
  • DIRECT BLACK 3
  • DIRECT BLACK 38
  • DIRECT BLACK A
  • DIRECT BLACK BRN
  • DIRECT BLACK CX
  • DIRECT BLACK CXR
  • DIRECT BLACK E
  • DIRECT BLACK EW
  • DIRECT BLACK EX
  • DIRECT BLACK FR
  • DIRECT BLACK GAC
  • DIRECT BLACK GW
  • DIRECT BLACK GX
  • DIRECT BLACK GXR
  • DIRECT BLACK JET
  • DIRECT BLACK META
  • DIRECT BLACK METHYL
  • DIRECT BLACK N
  • DIRECT BLACK RX
  • DIRECT BLACK SD
  • DIRECT BLACK WS
  • DIRECT BLACK Z
  • DIRECT BLACK ZSH
  • DIRECT DEEP BLACK E
  • DIRECT DEEP BLACK E EXTRA
  • DIRECT DEEP BLACK E-EX
  • DIRECT DEEP BLACK EA-CF
  • DIRECT DEEP BLACK EAC
  • DIRECT DEEP BLACK EW
  • DIRECT DEEP BLACK EX
  • DIRECT DEEP BLACK WX
  • ENIANIL BLACK CN
  • ERIE BLACK B
  • ERIE BLACK BF
  • ERIE BLACK GAC
  • ERIE BLACK GXOO
  • ERIE BLACK JET
  • ERIE BLACK NUG
  • ERIE BLACK RXOO
  • ERIE BRILLIANT BLACK S
  • ERIE FIBRE BLACK VP
  • FENAMIN BLACK E
  • FIBRE BLACK VF
  • FIXANOL BLACK E
  • FORMALINE BLACK C
  • FORMIC BLACK C
  • FORMIC BLACK CW
  • FORMIC BLACK EA
  • FORMIC BLACK MTG
  • FORMIC BLACK TG
  • HISPAMIN BLACK EF
  • INTERCHEM DIRECT BLACK Z
  • KAYAKU DIRECT DEEP BLACK EX
  • KAYAKU DIRECT DEEP BLACK GX
  • KAYAKU DIRECT DEEP BLACK S
  • KAYAKU DIRECT LEATHER BLACK EX
  • KAYAKU DIRECT SPECIAL BLACK AAX
  • LURAZOL BLACK BA
  • META BLACK
  • MITSUI DIRECT BLACK EX
  • MITSUI DIRECT BLACK GX
  • 2,7-NAPHTHALENEDISULFONIC ACID, 4-AMINO-3-((4'-((2,4-DIAMINOPHENYL)AZO)(1,1'-BIPHENYL)-4-YL)AZO)-5-HYDROXY-6-(PHENYLAZO)-, DISODIUM SALT
  • NIPPON DEEP BLACK
  • NIPPON DEEP BLACK GX
  • PAPER BLACK BA
  • PAPER BLACK T
  • PAPER DEEP BLACK C
  • PARAMINE BLACK B
  • PARAMINE BLACK E
  • PEERAMINE BLACK E
  • PEERAMINE BLACK GXOO
  • PHENAMINE BLACK BCN-CF
  • PHENAMINE BLACK CL
  • PHENAMINE BLACK E
  • PHENAMINE BLACK E 200
  • PHENO BLACK EP
  • PHENO BLACK SGN
  • PONTAMINE BLACK E
  • PONTAMINE BLACK EBN
  • SANDOPEL BLACK EX
  • SERISTAN BLACK B
  • TELON FAST BLACK E
  • TERTRODIRECT BLACK E
  • TERTRODIRECT BLACK EFD
  • TETRAZO DEEP BLACK G
  • TETRODIRECT BLACK E
  • UNION BLACK EM
  • VONDACEL BLACK N

Version 3.0.0