| Identification | More | [Name]
SODIUM DICHROMATE | [CAS]
10588-01-9 | [Synonyms]
SODIUM BICHROMATE
SODIUM DICHROMATE
bichromatedesodium
bichromatedesodium(french)
bichromateofsoda
caswellno761
celcure
celcurewoodpresrvative
chromicacid(h2cr207),disodiumsalt
chromicacid(h2cr2o7),disodiumsalt
chromiumsodiumoxide(cr3na2o7)
dichromicacid(h2cr2o7),disodiumsalt
dichromicacid,disodiumsalt
disodiumdichromate
epapesticidechemicalcode068304
j.h.baxterchromatedzincchloridesolution
kopperswolmansaltscca
natriumbichromaat
natriumdichromaat
natriumdichromat | [EINECS(EC#)]
234-190-3 | [Molecular Formula]
Cr2Na2O7 | [MDL Number]
MFCD00003483 | [Molecular Weight]
261.97 | [MOL File]
10588-01-9.mol |
| Chemical Properties | Back Directory | [Appearance]
Red or red-orange deliquescent crystals.Decomposes at 400C, loses
2H
2
O on prolonged heating at 100C. Soluble in
water; insoluble in alcohol. Noncombustible.
| [Melting point ]
356.7°C | [density ]
2.52 g/cm3(Temp: 13 °C) | [vapor pressure ]
0Pa at 20℃ | [form ]
red hygroscopic crystals | [color ]
red hygroscopic crystals, crystalline | [Water Solubility ]
2355g/L at 20℃ | [Dielectric constant]
2.9（Ambient） | [LogP]
-1 at 20℃ | [Uses]
Colorimetry (copper determination), complex-
ing agent, oxidation inhibitor in ethyl ether.
| [CAS DataBase Reference]
10588-01-9(CAS DataBase Reference) | [EPA Substance Registry System]
10588-01-9(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T+,N,O | [Risk Statements ]
R45:May cause cancer.
R60:May impair fertility.
R61:May cause harm to the unborn child.
R8:Contact with combustible material may cause fire.
R21:Harmful in contact with skin.
R25:Toxic if swallowed.
R26:Very Toxic by inhalation.
R34:Causes burns.
R42/43:May cause sensitization by inhalation and skin contact .
R48/23:Toxic: danger of serious damage to health by prolonged exposure through inhalation .
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
3086 | [HazardClass ]
6.1(a) | [PackingGroup ]
II | [Safety Profile]
Confirmed carcinogen with experimental tumorigenic data. Poison by ingestion, sktn contact, intravenous, intraperitoneal, and subcutaneous routes. Human systemic effects by ingestion: cough, nausea or vomiting, and sweating. Human mutation data reported. A caustic and irritant. A powerful oxidizer. Potentially explosive reaction with acetic anhydride, ethanol + sulfuric acid + heat, hydrazine. Violent reaction or ignition with boron + shcon (pyrotechnic), organic residues + sulfuric acid, 2-propanol + sulfuric acid, sulfuric acid + trinitrotoluene. Incompatible with hydroxylamine. When heated to decomposition it emits toxic fumes of Na2O. See also CHROMIUM COMPOUNDS. | [Hazardous Substances Data]
10588-01-9(Hazardous Substances Data) | [Toxicity]
LD50 oral in rat: 50mg/kg |
| Hazard Information | Back Directory | [General Description]
A red or red-orange crystalline solid. May be strongly irritating to skin, eyes and mucous membranes. Used as a corrosion inhibitor, and in the manufacture of other chemicals. | [Reactivity Profile]
SODIUM DICHROMATE(10588-01-9) is a strong oxidizing agent. Incompatible with strong acids. . Contact with combustible materials may lead to fires. Toxic chromium oxide fumes may form in fire [USCG, 1999]. The well known "chromic acid mixture" of dichromate and sulfuric acid with organic residue led to violent exothermic reaction. This mixture in combination with acetone residue also led to violent reaction. The combination of the dichromate and sulfuric acid with alcohols, ethanol and 2-propanol, led to violent exothermic reaction. Because of the occurrence of many incidents involving the dichromate-sulfuric acid mix with oxidizable organic materials, SODIUM DICHROMATE(10588-01-9) is probably best to avoid such interactions. The combination of the dichromate with hydrazine is explosive (one may expect the reaction of the dichromate to be vigorous with amines in general), [Mellor, 1943, Vol. 11, 234]. The addition of the dehydrated dichromate salt to acetic anhydride led to an exothermic reaction which eventually exploded. An induction period proceeded the explosion event [Bretherick, 5th Ed., 1995]. Boron, silicon, and dichromates form pyrotechnic mixtures. A mixture of acetic acid, 2-methyl-2-pentenal and the dichromate led to a runaway reaction and eruption of the reactor contents, [J. Haz. Mat., 1987, 233-239]. | [Air & Water Reactions]
Deliquescent. Soluble in water. | [Health Hazard]
Inhalation of dust or mist causes respiratory irritation sometimes resembling asthma; nasal septal perforation may occur. Ingestion causes vomiting, diarrhea, and (rarely) stomach and kidney complications. Contact with eyes or skin produces local irritation; repeated skin exposure causes dermatitis. | [Potential Exposure]
Used to make dyes, inks, pigments, and other chromates; in leather tanning, a corrosion inhibitor in circulating water systems; metal treatment; a drilling mud additive; chemical intermediate for chromium catalysts; colorimetry, oxidizing agent; bleaching agent; an algicide, fungicide, insecticide; in wood preservation. | [Fire Hazard]
Behavior in Fire: Decomposes to produce oxygen when heated. May ignite other combustibles upon contact. | [First aid]
If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. If victim is conscious, administer water, or milk. Do not induce vomiting. | [Shipping]
UN3087 Oxidizing solid, toxic, n.o.s., Hazard Class: 5.1; Labels: 5.1-Oxidizer, 6.1-Poisonous materials, Technical Name Required. UN3085 Oxidizing solid, corrosive, n.o.s., Hazard Class: 5.1; Labels: 5.1-Oxidizer, 8-Corrosive material, Technical Name Required. | [Incompatibilities]
Aqueous solution in a base. A strong oxidizer. Violent reaction with reducing agents; combustibles, strong acids; organic materials. | [Chemical Properties]
Red or red-orange deliquescent crystals.Decomposes at 400C, loses
2H
2
O on prolonged heating at 100C. Soluble in
water; insoluble in alcohol. Noncombustible.
| [Chemical Properties]
Sodium chromate, including the hexahydrate, is yellow crystalline solids that can also be used in solution. Disodium dichromate (10588-01-9): | [Definition]
ChEBI: Sodium dichromate is an inorganic sodium salt. It contains a dichromate(2-). |
|