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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	278 g/mol
HS Code	2841 30 00
Quality Level	MQ300

Physicochemical Information
Boiling point	400 °C (1013 hPa) (decomposition)
Density	2.52 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 Statement(s)	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. H340: May cause genetic defects. H350: May cause cancer. H360FD: May damage fertility. May damage the unborn child. H372: Causes damage to organs through prolonged or repeated exposure if inhaled. H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statement(s)	P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P260: Do not breathe dust. P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection. P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
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
Categories of danger	carcinogenic, mutagenic, toxic for reproduction, very toxic, oxidizing, corrosive, sensitizing, dangerous for the environment

Storage and Shipping Information
Storage	Store at +2°C to +30°C.

Transport Information
Declaration (railroad and road) ADR, RID	UN 3087 , 5.1 (6.1), II
Declaration (transport by air) IATA-DGR	UN 3087 , 5.1 (6.1), II
Declaration (transport by sea) IMDG-Code	UN 3087 , 5.1 (6.1), 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 %

Global Laboratuvar Marketi

Merck 106336 1000 Sodium dichromate dihydrate for analysis EMSURE 1 KG.

Merck 106336 1000 Sodium dichromate dihydrate for analysis EMSURE 1 KG.

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Merck 106336 1000 Sodium dichromate dihydrate for analysis EMSURE 1 KG.

Merck 106336 1000 Sodium dichromate dihydrate for analysis EMSURE 1 KG.

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