1,3-PHENYLENE DIISOCYANATE

CAS NO.：123-61-5
Empirical Formula: C8H4N2O2
Molecular Weight: 160.13
MDL number: MFCD00002018
EINECS: 204-637-7
SAFETY DATA SHEET (SDS)
Update Date: 2023-06-08 17:06:37

What is 1,3-PHENYLENE DIISOCYANATE?

Chemical properties

White to off-white fused solid

The Uses of 1,3-PHENYLENE DIISOCYANATE

1,??3-??Phenylene Diisocyanate is a reagent used in the synthesis of polyurethane materials and other thermoplastics.Environmental toxin on US EPA Toxic Release Inventory list (TRI) list.

Reactivity Profile

Isocyanates and thioisocyanates, such as 1,3-PHENYLENE DIISOCYANATE, are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence, [Wischmeyer(1969)].

Safety Profile

A sensitizer at very low concentrations. Deadly poison by intravenous route. When heated to decomposition it emits toxic fumes of NOx and CN-. See also ESTERS.

Properties of 1,3-PHENYLENE DIISOCYANATE

Melting point:	49-51 °C(lit.)
Boiling point:	121 °C25 mm Hg(lit.)
Density	1.3848 (rough estimate)
refractive index	1.4900 (estimate)
Flash point:	>230 °F
storage temp.	2-8°C
form	powder to lump
color	Crystals
Water Solubility	Soluble in hot benzene. Hydrolyzes in water.
Sensitive	Moisture Sensitive
BRN	776957
CAS DataBase Reference	123-61-5(CAS DataBase Reference)
EPA Substance Registry System	1,3-Phenylene diisocyanate (123-61-5)

Safety information for 1,3-PHENYLENE DIISOCYANATE

Signal word	Danger
Pictogram(s)	Exclamation Mark Irritant GHS07 Health Hazard GHS08
GHS Hazard Statements	H315:Skin corrosion/irritation H317:Sensitisation, Skin H319:Serious eye damage/eye irritation H334:Sensitisation, respiratory H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.