MERCK 107478.2500 1,2-Propanediol Suitable Emprove CAS No. 57-55-6

Key Spec Table

CAS #	EC Number	Hill Formula	Chemical Formula	Molar Mass	Grade Value
57-55-6	200-338-0	C₃H₈O₂	CH₃CH(OH)CH₂OH	76.09 g/mol	Ph Eur,BP,USP

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Description
Catalogue Number	107478
Synonyms	1,2-Propylene glycol
Description	1,2-Propanediol

Product Information
CAS number	57-55-6
EC number	200-338-0
Grade	Ph Eur,BP,USP
Hill Formula	C₃H₈O₂
Chemical formula	CH₃CH(OH)CH₂OH
Molar Mass	76.09 g/mol
HS Code	2905 32 00
Structure formula Image
Quality Level	MQ500

Physicochemical Information
Boiling point	188 °C (1013 hPa)
Density	1.036 g/cm3 (25 °C)
Explosion limit	2.4 - 17.4 %(V)
Flash point	99 °C
Ignition temperature	371 °C
Melting Point	-59 °C
pH value	6 - 8 (100 g/l, H₂O, 20 °C)
Vapor pressure	0.2 hPa (25 °C)
Refractive Index	1.43 (20 °C)

Toxicological Information
LD 50 oral	LD50 Rat 19400 - 36000 mg/kg
LD 50 dermal	LD50 Rabbit 20800 mg/kg

Safety Information according to GHS
RTECS	TY2000000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	3Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

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

Specifications
Purity (GC)	≥ 99.5 %
Identity (IR)	conforms
Identity D (Ph Eur)**	121 - 128 °C
Appearance of the substance	conforms
Density (d 20 °C/20 °C)	1.035 - 1.040
Density (d 25 °C/25 °C)	1.035 - 1.037
Refractive index (n 20/D)	1.431 - 1.433
Boiling point	184 - 189 °C
Acidity	conforms
Chloride (Cl)	≤ 0.007 %
Sulfate (SO₄)	≤ 0.006 %
Isomers of dipropylene glycol	conforms
Diethylene glycol (GC)	≤ 0.10 %
Ethylenglycol (GC)	≤ 0.10 %
Residual solvents (ICH Q3C)	excluded by production process
Oxidizing Substances	conforms
Reducing substances	conforms
Sulfated ash	≤ 0.007 %
Water	≤ 0.20 %
Bacterial endotoxins	≤ 2.5 I.U./ml
Total aerobic microbial count (TAMC)	≤ 10²
Total combined yeasts/moulds count (TYMC)	≤ 10¹
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities).Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).**The value of the additional identity test is transferred from the supplier CoA.Conforms to Ph Eur, BP, USP