Octamethyl cyclotetrasiloxane (cas 556-67-2) Molecular Structure

CAS No. 556-67-2 (Octamethyl cyclotetrasiloxane )

Molecular Formula: C8H24O4Si4Molecular Weight: 296.62

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    DetailDesc:Name: Octamethyl cyclotetrasiloxane Synonyms: Octamethyl cyclotetrasilazane; octaphenyl silsesquioxane CAS Registry number: 556-67-2 EINECS:209-136-7 Molecular Formula: C8H24O4Si4 Boiling Point: 175-176℃ Flash Point: 56℃ Density: 0.956 Water:INSOLUBLE Appearance: Colorless clear liquid Usage: Fungicide Safety Statements: S36/37;S46;S51;S61 Transport:UN 1993

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    DetailDesc: Product Name: OCTAMETHYLCYCLOTETRASILOXANE (D4) Molecular Formula: C 8 H 24 Si 4 O 4 Molecular Weight: 296.63 Melting Point: 17.5°C Boiling Point: 175°C Flashing Point: 56 °C Density(P20)g/cm 3 : 0.95 6 Specification: Testing Item Standard Content (%) 99.0 Min. Visco...

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    DetailDesc: Technical Index Typical general characteristics Value Boiling point / Boiling range at 1013 hPa 175 °C Flash point 56 °C Melting point , °C 17.5 Density at 2 0, °C 0.95 g/cm 3 Viscosity (at 25 °C , ,mm2/s ) 2.3 Purity , (D4) ,% min. 9 9.0 These figures are only intended as a guide and should not be used in preparing s...

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    DetailDesc: Quick Details CAS No.: 556-67-2 Melting Point: 17-18 °C(lit.) Boiling Point: 175 °C at 760 mmHg Flash Point: 63.2 °C Solubility: insoluble in water Appearance: Colorless clear liquid Risk Codes: 53-62 Safety: 36/37-46-51-61 Transport Information: UN 1993 3/PG 3 Specifications Description of Danger : UN NO.1993, Package category No.3Product Standard : Enterprise Standard Q/SC 38-3006 D...

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References of Octamethyl cyclotetrasiloxane cas 556-67-2

} Toxicity

1. ???

skn-rbt 500?mg/24H MLD

??? 85JCAE ?? Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.:?Avicenum,1986,1230.
2. ???

eye-rbt 500?mg/24H MLD

??? 85JCAE ?? Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.:?Avicenum,1986,1230.

?

Safety

A skin irritant. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Codes:?IrritantXiIrritantXnFlammableFDangerousN
Risk Statements: 20-59-36/37/38-11-67-65-63-48/20-38-20/21-50/53?
R20: Harmful by inhalation
R59: Dangerous to the ozone layer
R36/37/38: Irritating to eyes, respiratory system and skin
R11: Highly flammable
R67: Vapours may cause drowsiness and dizziness
R65: Harmful: may cause lung damage if swallowed
R63: Possible risk of harm to the unborn child
R38: Irritating to skin
R20/21: Harmful by inhalation and in contact with skin
R50/53: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Safety Statements: 60-61-62-36/37-59?
S60: This material and its container must be disposed of as hazardous waste
S61: Avoid release to the environment. Refer to special instructions / safety data sheets
S62: If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label
S36/37: Wear suitable protective clothing and gloves
S59: Refer to manufacturer / supplier for information on recovery / recycling
RIDADR: UN 2924 3/PG 2
WGK Germany: 3
F: 3-10-19-21
TSCA: Yes
HazardClass: 3
PackingGroup: II
HS Code: 29310095