Product Information
CAS number	143-33-9
EC index number	006-007-00-5
EC number	205-599-4
Hill Formula	CNNa
Chemical formula	NaCN
Molar Mass	49.01 g/mol
HS Code	2837 11 00
Structure formula Image

Applications
Application	Sodium cyanide pure. CAS No. 143-33-9, EC Number 205-599-4.

Physicochemical Information
Boiling point	1496 °C (1013 hPa)
Density	1.6 g/cm3 (20 °C)
Melting Point	563 °C
pH value	11.7 (100 g/l, H₂O, 20 °C)
Bulk density	750 - 900 kg/m3
Solubility	370 g/l

Toxicological Information
LD 50 oral	LD50 Rat 4.7 mg/kg
LD 50 dermal	LD50 Rabbit 7.7 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H300 + H310 + H330: Fatal if swallowed, in contact with skin or if inhaled. H372: Causes damage to organs through prolonged or repeated exposure. H410: Very toxic to aquatic life with long lasting effects. EUH032: Contact with acids liberates very toxic gas.
Precautionary Statement(s)	P273: Avoid release to the environment. P280: Wear protective gloves/ protective clothing. 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. P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Signal Word	Danger
Storage class	6.1B Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK	WGK 3 highly water endangering
Disposal	6 Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E.

Safety Information
Hazard Symbols	Dangerous for the environment Very toxic
Categories of danger	very toxic, dangerous for the environment
R Phrase	R 26/27/28-32-50/53 Very toxic by inhalation, in contact with skin and if swallowed.Contact with acids liberates very toxic gas.Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase	S 7-28-29-45-60-61 Keep container tightly closed.After contact with skin, wash immediately with plenty of soap and water.Do not empty into drains.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	Storage temperature: no restrictions.

Transport Information
Declaration (railroad and road) ADR, RID	UN 1689 , 6.1, I
Declaration (transport by air) IATA-DGR	UN 1689 , 6.1, I
Declaration (transport by sea) IMDG-Code	UN 1689 , 6.1, I, Marine Pollutant: P, Segregation Group: 6 (Cyanides)

Specifications
Assay (argentometric)	≥ 95.0 %
Identity	passes test
Chloride (Cl)	≤ 0.05 %
Hexacyanoferrate	≤ 0.05 %
Sulphide (S)	≤ 0.02 %
Pb (Lead)	≤ 0.005 %

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MERCK 106437 Sodium cyanide pure. CAS No. 143-33-9, EC Number 205-599-4

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