Sodium dichromate dihydrate (VI) cas no:7789-12-0
Synonyms: Dichromic acid, (H2Cr2O7), disodium salt, dihydrate; Disodium dichromate dihydrate; sodium dichromate dihydrate; Sodium dichromate dihydrate (Na2Cr2O7.2H2O);
NameSodium dichromate dihydrate (VI)
CAS7789-12-0
SynonymsDichromic acid, (H2Cr2O7), disodium salt, dihydrate; Disodium dichromate dihydrate; sodium dichromate dihydrate; Sodium dichromate dihydrate (Na2Cr2O7.2H2O);
EINECS(EC#)234-190-3
Molecular FormulaNa2Cr2O7?2(H2O)
Molecular Weight298
Appearanceorange crystals or needles
refractive index1.661 (17 C)
storage tempKeep away from heat, sparks, and flame. Do not store near combustible materials. Store in a cool, dry, well-ventilated area away from incompatible substances.
Sensitive Hygroscopic
Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
Hazardclass5.1
Hazard O:Oxidizingagent;T+:Verytoxic;N:Dangerousfortheenvironment;
Risk R21;R25;R26;R34;R42/43;R45;R46;R48/23;R50/53;R60;R61;R8
Safety
Hazard Codes:?
O,?
T+,?
N
Risk Statements: 45-46-60-61-8-21-25-26-34-42/43-48/23-50/53?
R45:May cause cancer.?
R46:May cause heritable genetic damage.?
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:Danger of serious damage to health by prolonged exposure.?
R23 :Toxic by inhalation.?
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 53-45-60-61?
S53:Avoid exposure - obtain special instructions before use.?
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)?
S60:This material and its container must be disposed of as hazardous waste.?
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 3086 6.1/PG 1
WGK Germany: 3
RTECS: HX7750000
HazardClass: 5.1
PackingGroup: III
HS Code: 28413000
A confirmed carcinogen with experimental carcinogenic data. Probably a poison. A caustic irritant. Mutation data reported. It can react violently with hydrazine. When heated to decomposition it emits toxic fumes of Na2O. See also SODIUM DICHROMATE and CHROMIUM COMPOUNDS.
HS Code 28413000
| 1. |
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mmo-sat 50?μg/plate
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CRNGDP ?? Carcinogenesis. 5 (1984),505. |
| 2. |
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slt-dmg-orl 2340 μm/L
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MUREAV ?? Mutation Research. 157 (1985),157. |
