|CAS Number||UN/NA Number|
|DOT Hazard Label||USCG CHRIS Code|
|NIOSH Pocket Guide||International Chem Safety Card|
|Chromic acid and chromates||none|
- Strong Oxidizing Agent
Behavior in Fire: Can explode when heated or shocked. (USCG, 1999)
Use caution: Liquids with this reactive group classification have been known to react with the absorbents listed below. More info about absorbents, including situations to watch out for...
- Cellulose-Based Absorbents
- Expanded Polymeric Absorbents
As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
LARGE SPILL: Consider initial downwind evacuation for at least 100 meters (330 feet).
FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)
SMALL FIRE: Use water. Do not use dry chemicals or foams. CO2 or Halon® may provide limited control.
LARGE FIRE: Flood fire area with water from a distance. Do not move cargo or vehicle if cargo has been exposed to heat. Move containers from fire area if you can do it without risk.
FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2016)
Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Do not get water inside containers.
SMALL DRY SPILL: With clean shovel, place material into clean, dry container and cover loosely; move containers from spill area.
SMALL LIQUID SPILL: Use a non-combustible material like vermiculite or sand to soak up the product and place into a container for later disposal.
LARGE SPILL: Dike far ahead of liquid spill for later disposal. Following product recovery, flush area with water. (ERG, 2016)
INHALATION: Move to fresh air.
EYES: Flush with water.
SKIN: Wash with soap and water.
INGESTION: Dilute with water or milk. (USCG, 1999)
AEGLs (Acute Exposure Guideline Levels)No AEGL information available.
ERPGs (Emergency Response Planning Guidelines)No ERPG information available.
PACs (Protective Action Criteria)
|Ammonium chromate (7788-98-9)||0.44 mg/m3||7.7 mg/m3||46 mg/m3|
EPA Consolidated List of Lists
|Regulatory Name||CAS Number/
313 Category Code
|CERCLA RQ||EPCRA 313
|Ammonium chromate||7788-98-9||10 pounds||313c|
- "c" indicates that although not listed by name and CAS number, this chemical is reportable under one or more of the EPCRA section 313 chemical categories.
- & indicates that no RQ is assigned to this generic or broad class, although the class is a CERCLA hazardous substance. See 50 Federal Register 13456 (April 4, 1985).
(EPA List of Lists, 2015)
DHS Chemical Facility Anti-Terrorism Standards (CFATS)No regulatory information available.
OSHA Process Safety Management (PSM) Standard ListNo regulatory information available.
- AMMONIUM CHROMATE
- AMMONIUM CHROMATE ((NH4)2CRO4)
- AMMONIUM CHROMATE(VI)
- CHROMIC ACID AMMONIUM SALT
- CHROMIC ACID, AMMONIUM SALT
- DIAMMONIUM CHROMATE
- DIAMMONIUM CHROMATE ((NH4)2CRO4)
- NEUTRAL AMMONIUM CHROMATE
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