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85-43-8

85-43-8 structural image
Product Name: 1,2,3,6-Tetrahydrophthalic anhydride
Formula: C8H8O3
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description Memtetrahydrophthalic anhydride is a clear colorless to light yellow slight viscous liquid. Highly toxic and a strong irritant to skin, eyes and mucous membranes. Corrosive to skin and metal. Used in making polyester, alkyd resins, and plasticizers.
Color/Form White crystalline powder
Boiling Point at 6.7kPa: 195 °C
Melting Point Crystals from petroleum ether. MP: 103.5 °C. Soluble in ethanol, acetone, chloroform, benzene; slightly soluble in petroleum ether. /cis-1,2,3,6-Tetrahydrophthalic anhydride/
Flash Point 315 °F (157 °C) Open cup
Solubility Slightly soluble in petroleum ether and ethyl ether; soluble in benzene
Density 1.20 at 105 °C
Vapor Density Relative vapor density (air = 1): 5.3
Vapor Pressure 0.05 [mmHg]
Autoignition Temperature 450 °C
Decomposition When heated to decomposition it emits acrid smoke and fumes.
Other Experimental Properties LEAVES; MP: 128 °C; DECOMP IN HOT WATER; VERY SOL IN ALC, BENZENE; SPECIFIC OPTICAL ROTATION: +6.6 DEG @ 25 °C/D (IN ALCOHOL) /TETRAHYDROPHTHALIC ANHYDRIDE (TRANS, D)/
Chemical Classes Plastics & Rubber -> Acid Anhydrides, Cyclic

SAFETY INFORMATION

Signal word Warning
Pictogram(s)

Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
Precautionary Statement Codes P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P362:Take off contaminated clothing and wash before reuse.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313:IF SKIN irritation occurs: Get medical advice/attention.
P337+P313:IF eye irritation persists: Get medical advice/attention.

COMPUTED DESCRIPTORS

Molecular Weight 152.15 g/mol
XLogP3 0.8
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 3
Rotatable Bond Count 0
Exact Mass 152.047344113 g/mol
Monoisotopic Mass 152.047344113 g/mol
Topological Polar Surface Area 43.4 Ų
Heavy Atom Count 11
Formal Charge 0
Complexity 218
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 2
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Memtetrahydrophthalic anhydride is a clear colorless to light yellow slight viscous liquid. Highly toxic and a strong irritant to skin, eyes and mucous membranes. Corrosive to skin and metal. Used in making polyester, alkyd resins, and plasticizers.