Product Information
CAS number	62-56-6
EC index number	612-082-00-0
EC number	200-543-5
Grade	ACS,Reag. Ph Eur
Hill Formula	CH₄N₂S
Chemical formula	H₂NCSNH₂
Molar Mass	76.12 g/mol
HS Code	2930 90 98
Structure formula Image

Applications
Application	Thiourea GR for analysis ACS,Reag. Ph Eur. CAS No. 62-56-6, EC Number 200-543-5.

Physicochemical Information
Density	1.405 g/cm3 (20 °C)
Ignition temperature	440 °C Dust
Melting Point	169 - 173 °C
pH value	6 - 8 (50 g/l, H₂O, 20 °C)
Bulk density	640 kg/m3
Solubility	137 g/l

Toxicological Information
LD 50 oral	LD50 Rat 1750 mg/kg
LD 50 dermal	LD50 Rabbit > 2800 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H302: Harmful if swallowed. H351: Suspected of causing cancer. H361d: Suspected of damaging the unborn child. H411: Toxic to aquatic life with long lasting effects.
Precautionary Statement(s)	P273: Avoid release to the environment. P308 + P313: IF exposed or concerned: Get medical advice/ attention.
Signal Word	Warning
RTECS	YU2800000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 2 water endangering
Disposal	3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Safety Information
Hazard Symbols	Dangerous for the environment Harmful
Categories of danger	harmful, carcinogenic, dangerous for the environment, toxic for reproduction
R Phrase	R 22-40-51/53-63 Harmful if swallowed.Limited evidence of a carcinogenic effect.Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.Possible risk of harm to the unborn child.
S Phrase	S 36/37-61 Wear suitable protective clothing and gloves.Avoid release to the environment. Refer to special instructions/ Safety data sheets.

Storage and Shipping Information
Storage	Store at +15°C to +25°C.

Transport Information
Declaration (railroad and road) ADR, RID	UN 3077 , 9, III
Declaration (transport by air) IATA-DGR	UN 3077 , 9, III
Declaration (transport by sea) IMDG-Code	UN 3077 , 9, III, Marine Pollutant: P

Specifications
Assay	≥ 99.0 %
Identity (IR-spectrum)	passes test
Appearance of solution (50 g/l; water)	Clear to almost clear and colorless.
Melting point	174 - 178 °C
Fe (Iron)	≤ 0.0005 %
Sulfated ash (600 °C)	≤ 0.1 %
Loss on Drying (105°C)	≤ 0.5 %
Sensitivity to bismuth	passes test
Corresponds to ACS, Reag. Ph Eur

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MERCK 107979 Thiourea GR for analysis ACS,Reag. Ph Eur. CAS No. 62-56-6, EC Number 200-543-5

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