Sodium dichromate dihydrate

297.99800

297.84600

616-541-6

52125XYY2A

1479

DTXSID6032061

28413000

142.09000

-0.90980

orange crystals or needles

2.348 g/cm3

357ºC

400ºC

1.661 (17ºC)

H2O: 730 g/L (20 ºC)

Keep away from heat, sparks, and flame. Do not store near combustible materials. Store in a cool, dry, well-ventilated area away

Water soluble (hot water).

Salts, Basic

Strong Oxidizing Agent

ZINC BICHROMATE can react with reducing agents to generate heat and products that may be gaseous (causing pressurization of closed containers). The products may themselves be capable of further reactions (such as combustion in the air). Reactions may be rapid but often requires initiation (heat, spark, catalyst, addition of a solvent). Can react violently with active metals, cyanides, esters, and thiocyanates.

Not flammable (USCG, 1999)

III

5.1

UN 3086 6.1/PG 1

3

R21; R25; R26; R34; R42/43; R45; R46; R48/23; R50/53; R60; R61; R8

S45-S53-S60-S61

HX7750000

O; T+; N

Stable under normal temperatures and pressures.

P201-P210-P260-P284-P301 + P310 + P330-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338-P308 + P313-P403 + P233

H272-H301-H312-H314-H317-H330-H334-H340-H350-H360FD-H372-H410

Excerpt from ERG Guide 140 [Oxidizers]: These substances will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. May explode from heat or contamination. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard. (ERG, 2016)

|Danger|H301: Toxic if swallowed [Danger Acute toxicity, oral]|P201, P202, P260, P261, P264, P270, P271, P272, P280, P281, P284, P285, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P304+P341, P305+P351+P338, P308+P313, P310, P312, P314, P320, P321, P322, P330, P333+P313, P342+P311, P363, P403+P233, P405, and P501|P201, P202, P260, P261, P264, P270, P271, P272, P273, P280, P281, P284, P285, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P304+P341, P305+P351+P338, P307+P311, P308+P313, P310, P312, P314, P320, P321, P322, P330, P333+P313, P342+P311, P361, P363, P391, P403+P233, P405, and P501

Excerpt from ERG Guide 140 [Oxidizers]: 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)

Excerpt from ERG Guide 140 [Oxidizers]: 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)

Excerpt from ERG Guide 140 [Oxidizers]: 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)

Rubber gloves, face shield or goggles, approved dust mask. (USCG, 1999)

INHALATION: Corrosive to mucous membranes continuous exposure may lead to perforation of nasal septum. EYES: Conjunctivitis and lacrimation. SKIN: Corrosive producing deep penetrating ulcers to exposed area. Slow to heal. INGESTION: Has a harsh metallic taste. May cause vertigo, thirst, abdominal pain, vomiting, shock, convulsions and coma. (USCG, 1999)

Call a physician. INHALATION: Remove from exposure. EYES: Wash with running water. SKIN: Wash with copious amounts of water. INGESTION: Gastric lavage, induce vomiting, catharsis. Give milk or starch drinks to relieve irritation. (USCG, 1999)