| Identification | More | [Name]
Sodium chromate tetrahydrate | [CAS]
10034-82-9 | [Synonyms]
DISODIUM CHROMATE
SODIUM CHROMATE
SODIUM CHROMATE, 4-HYDRATE
SODIUM CHROMATE TETRAHYDRATE
Chromicacid,disodiumsalt,tetrahydrate
SODIUM CHROMATE TETRAHYDRAT
SODIUM CHROMATE-4-HYDRATE EXTRA PURE
POTASSIUM CHROMATE 99% A.C.S. REAGENT
SodiumChromateReagent
SodiumChromateGr(Tetrahydrate)
Sodium chromate tetrahydrate, 99+%
SODIUM CHROMATE GR TERAHYDRATE
SODIUM CHROMATE 4 H2O
SODIUM CHROMATE, SOLUTION, 0.5 M
SODIUM CHROMATE, TETRAHYDRATE REAGENT
Chromic acid (H2CrO4), disodium salt, tetrahydrate
sodium chromate tetrahydrate, reagent grade
SODIUMCHROMATE,CRYSTAL,CP
SODIUMCHROMATE,CRYSTAL,REAGENT
SODIUMCHROMATE,TECH(BULK | [EINECS(EC#)]
231-889-5 | [Molecular Formula]
CrH8Na2O8 | [MDL Number]
MFCD00149167 | [Molecular Weight]
234.03 | [MOL File]
10034-82-9.mol |
| Chemical Properties | Back Directory | [Appearance]
Sodium cyanide is found as white granules, flakes or lumps. Sodium cyanide is shipped as pellets or briquettes. Odorless when dry. It absorbs water from air (is hygroscopic or deliquescent). Hydrogen cyanide gas released by sodium cyanide has a distinctive mild, bitter almond odor, but a large proportion of people cannot detect it; the odor does not provide adequate warning of hazardous concentrations. | [Melting point ]
792℃ | [density ]
2.73 | [solubility ]
slightly soluble in ethanol | [form ]
Crystals | [color ]
Yellow | [Odor]
Odorless | [PH]
pH (10g/l, 25℃) : 8.0～10.0 | [Stability:]
Stable. Incompatible with strong reducing agents, combustible materials, strong acids. Deliquescent. | [Water Solubility ]
Soluble in water. | [Sensitive ]
Hygroscopic | [Merck ]
14,8601 | [Exposure limits]
ACGIH: TWA 0.0002 mg/m3; STEL 0.0005 mg/m3 (Skin)
OSHA: Ceiling 0.1 mg/m3
NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3 | [CAS DataBase Reference]
10034-82-9(CAS DataBase Reference) | [EPA Substance Registry System]
10034-82-9(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T+,N | [Risk Statements ]
R45:May cause cancer.
R60:May impair fertility.
R61:May cause harm to the unborn child.
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 ]
UN 3288 6.1/PG 2
| [WGK Germany ]
3
| [RTECS ]
GB2958300
| [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
II |
| Hazard Information | Back Directory | [General Description]
Odorless bright yellow deliquescent crystals. Aqueous solutions are alkaline. | [Reactivity Profile]
SODIUM CHROMATE TETRAHYDRATE(10034-82-9) is a strong oxidizing agent. Incompatible with strong acids . Contact with combustible materials may lead to a fire. Toxic chromium oxide fumes may form in fire [USCG, 1999]. | [Air & Water Reactions]
Deliquescent. Water soluble. | [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]
Literature sources indicate that this chemical is nonflammable. | [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]
Sodium cyanide decomposes on contact with acids, acid salts, water, moisture, alcohols, and carbon dioxide, releasing highly toxic and flammable hydrogen cyanide gas. Aqueous solution is a strong base; it reacts violently with acid and is corrosive. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Absorbs moisture from the air forming a corrosive syrup. Corrosive to active metals, such as aluminum, copper, and zinc. Under acid conditions, sarin hydrolyzes to form hydrofluoric acid. | [Chemical Properties]
Sodium chromate, including the hexahydrate, is yellow crystalline solids that can also be used in solution. Disodium dichromate (10588-01-9): | [Chemical Properties]
Sodium cyanide is found as white granules, flakes or lumps. Sodium cyanide is shipped as pellets or briquettes. Odorless when dry. It absorbs water from air (is hygroscopic or deliquescent). Hydrogen cyanide gas released by sodium cyanide has a distinctive mild, bitter almond odor, but a large proportion of people cannot detect it; the odor does not provide adequate warning of hazardous concentrations. | [Chemical Properties]
yellow deliquescent crystals | [Waste Disposal]
Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA regulations governing storage, transportation, treatment, and waste disposal. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office. Add strong alkaline hypochlorite and react for 24 hours. Then flush to sewer with large volumes of water. | [Uses]
Sodium chromate tetrahydrate can be used as an oxidant in organic synthesis and also as a carrier electrolyte in the capillary electrophoresis. | [Uses]
Corrosion inhibitor, pigment manufactureSodium chromate tetrahydrate is used as a corrosion inhibitor, wood preservative and an auxiliary in textile industry. It serves as an oxidant, which is used to prepare carboxylic acids and ketones from primary and secondary alcohols respectively. Further, it is used as a starting material to prepare other chromium compounds and as a catalyst in organic synthesis especially pharmaceuticals and agro chemicals. | [Purification Methods]
Crystallise the chromate from hot water (0.8mL/g). It is deliquescent. |
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