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| CAS No.: | 78-66-0 |
|---|---|
| Name: | 3,6-DIMETHYL-4-OCTYN-3,6-DIOL |
| Molecular Structure: | |
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| Formula: | C10H18 O2 |
| Molecular Weight: | 170.252 |
| Synonyms: | 2,5-Diethyl-3-hexyne-2,5-diol;3,6-Dihydroxy-3,6-dimethyl-4-octyne; 3,6-Dimethyl-4-octyne-3,6-diol; NSC 1025;NSC 406738; Surfynol 82; Surfynol 85 |
| Density: | 0.989g/cm3 |
| Melting Point: | 54-55°C |
| Boiling Point: | 208-214°C 680mm |
| Flash Point: | 208-214°C/680mm |
| Risk Codes: | 22 |
| Safety: | Moderately toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating vapors. |
| PSA: | 40.46000 |
| LogP: | 1.31180 |
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Chemistry
MF: C10H18O2
MW: 170.25
EINECS: 201-131-8
Density: 0.989 g/cm3
Melting Point: 54-55°C
Index of Refraction: 1.485
Flash Point: 208-214°C/680mm
Refractive index: 1.4364-1.4384
Appearence : Crystalline solid
Enthalpy of Vaporization: 52.46 kJ/mol
Boiling Point: 214.7 °C at 760 mmHg
Vapour Pressure: 0.0336 mmHg at 25°C
IUPAC Name: 3,6-Dimethyloct-4-yne-3,6-diol
Synonyms: 3,6-Dimethyl-4-octyne-6-diol ; 3,6-Dimethyl-octin-4-diol-(3,6) ; 4-Octyn-3,6-diol, 3,6-dimethyl- ; 4-Octyne-3,6-diol, 3,6-dimethyl- ; NSC1025 ; Surfynol 82, 82S ; Dimethyl octynediol ; 3,6-Dimethyl-4-octyn-3,6-diol
Following is the molecular structure of 3,6-Dimethyl-octin-4-diol-(3,6) (CAS NO.78-66-0):
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Uses
3,6-Dimethyl-octin-4-diol-(3,6) (CAS NO.78-66-0) is used as a polyethylene plastic sol viscosity reduction, aniline ink anti-gelling agent, PVC thermal stabilizer, make-up soap and shampoo the wetting agent, polyurethane and polyester polyol component, electroplating liquid defoaming agents, dye dispersant.
Production
3,6-Dimethyl-octin-4-diol-(3,6) (CAS NO.78-66-0) is derived by the acetylene and 2 - butanone reaction.
Toxicity Data With Reference
The tixicity of 3,6-Dimethyl-octin-4-diol-(3,6) (CAS NO.78-66-0):
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | oral | 825mg/kg (825mg/kg) | Arzneimittel-Forschung. Drug Research. Vol. 4, Pg. 477, 1954. | |
| rat | LD50 | oral | 1400mg/kg (1400mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: TREMOR GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS | National Technical Information Service. Vol. OTS0535966, |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Moderately toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating vapors.
Safety Information of 3,6-Dimethyl-octin-4-diol-(3,6) (CAS NO.78-66-0):
Risk Statements: 22
R22: Harmful if swallowed.
Safety Statements: 22-36/37
S22: Do not breathe dust.
S36/37: Wear suitable protective clothing and gloves.
RTECS: RI2650000