Merck 106336 Sodium dichromate dihydrate for analysis EMSURE® ACS CAS No.: 7789-12-0 1 kg

Merck 106336 Sodium dichromate dihydrate for analysis EMSURE® ACS CAS No.: 7789-12-0 1 kg

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MERCK 106336
Sodium dichromate dihydrate for analysis EMSURE® ACS
 
Description
Catalogue Number 106336
Synonyms Sodium bichromate, Sodium pyrochromate
Product Information
CAS number 7789-12-0
EC index number 024-004-00-7
EC number 234-190-3
Grade ACS
Hill Formula Cr₂Na₂O₇*2H₂O
Chemical formula Na₂Cr₂O₇ * 2 H₂O
Molar Mass 298.00 g/mol
HS Code 2841 30 00
Quality Level MQ300
Physicochemical Information
Boiling point 400 °C (1013 hPa) (decomposition)
Density 2.35 g/cm3 (20 °C)
Melting Point 356.7 °C (anhydrous substance)
pH value 3.5 (100 g/l, H₂O, 20 °C)
Bulk density 1200 kg/m3
Solubility 731.8 g/l
Toxicological Information
LD 50 oral LD50 Rat 50 mg/kg
LD 50 dermal LD50 Rabbit 1000 mg/kg
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Statement(s) H340: May cause genetic defects.
H350: May cause cancer.
H360FD: May damage fertility. May damage the unborn child.
H272: May intensify fire; oxidizer.
H301: Toxic if swallowed.
H312: Harmful in contact with skin.
H314: Causes severe skin burns and eye damage.
H317: May cause an allergic skin reaction.
H330: Fatal if inhaled.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H372: Causes damage to organs through prolonged or repeated exposure.
H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statement(s) P201: Obtain special instructions before use.
P221: Take any precaution to avoid mixing with combustibles, heavy-metal compounds, acids and alkalis.
P273: Avoid release to the environment.
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.
P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Signal Word Danger
RTECS HX7750000
Storage class 5.1B Oxidizing hazardous materials
WGK WGK 3 highly hazardous to water
Disposal 22
Inorganic peroxides and oxidants as well as bromine and iodine should be rendered harmless by reduction with acidic sodium thiosulfate solution (Cat. No. 106513); container D or E. Slightly soluble oxidants should be collected separately in container E or I.
Safety Information
Hazard Symbols Hazard SymbolsVery toxic
Hazard SymbolsOxidising
Hazard SymbolsDangerous for the environment
Categories of danger carcinogenic, mutagenic, toxic for reproduction, very toxic, oxidizing, corrosive, sensitizing, dangerous for the environment
R Phrase R 45-46-60-61-21-25-26-48/23- 8-34-42/43-50/53
May cause cancer.May cause heritable genetic damage.May impair fertility.May cause harm to the unborn child.Also harmful in contact with skin.Also toxic if swallowed.Also very toxic by inhalation.Also toxic: danger of serious damage to health by prolonged exposure through inhalation.Contact with combustible material may cause fire.Causes burns.May cause sensitisation by inhalation and skin contact.Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase S 53-45-60-61
Avoid exposure - obtain special instructions before use.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).This material and its container must be disposed of as hazardous waste.Avoid release to the environment. Refer to special instructions/ Safety data sheets.
Storage and Shipping Information
Storage Store at +5 °C to +30 °C.
Transport Information
Declaration (railroad and road) ADR, RID UN 3086 , 6.1 (5.1), II
Declaration (transport by air) IATA-DGR UN 3086 , 6.1 (5.1), II
Declaration (transport by sea) IMDG-Code UN 3086 , 6.1 (5.1), II
Specifications
Assay (iodometric) 99.5 - 100.5 %
Identity passes test
Insoluble matter ≤ 0.005 %
Chloride (Cl) ≤ 0.002 %
Sulfate (SO₄) ≤ 0.01 %
Al (Aluminium) ≤ 0.002 %
Ca (Calcium) ≤ 0.002 %
Cu (Copper) ≤ 0.001 %
Fe (Iron) ≤ 0.002 %
K (Potassium) ≤ 0.01 %
Mg (Magnesium) ≤ 0.005 %
Pb (Lead) ≤ 0.002 %
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Merck 106336 Sodium dichromate dihydrate for analysis EMSURE® ACS CAS No.: 7789-12-0 1 kg TFZPQUGACX
Merck 106336 Sodium dichromate dihydrate for analysis EMSURE® ACS CAS No.: 7789-12-0 1 kg

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