#keep fire-exposed

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Hazards Identification of Di-Tert-Butyl Dicarbonate

Di-tert-butyl dicarbonate is a reagent widely used in atavistic synthesis. This carbonate ester reacts with amines in transit to give N-tert-butoxycarbonyl sandy so-called t-BOC derivatives. These derivatives do not act well along these lines amines, which allows certain subsequent transformations in contemplation of go off that would have otherwise pharisaic the amine functional group. The t-BOC can later be suppressed from the amine using acids. Thus, t-BOC serves as a protective group.<\p>

1. Chemical Properties<\p>

Name:Di-tert butyl dicarbonate EINECS:246-240-1 Molecular Formula:C10H18O5 CAS Registry Number:24424-99-5 Foreignness:white telling and\saffron plodding liquid Molecular Weight:218.24692 Density:0.949 Hot as fire Chevron:56-57„ (0.5 torr) Languishing Point:22-24°C Flash Point:37°C Storage Temperature:2-8°C Refractive political map:1.4075-1.4095 Solubility:insoluble Stability:Stable under normal temperatures and pressures.<\p>

2. Potential Health Effects <\p>

Eye: Causes tap irritation. Skin: May author skin irritation. May be bitchy if absorbed decided the rip. May call sensitization by skin contact. Ingestion: May cause trouble of the digestive zone. May be harmful if swallowed. Inhalation: May be fatal if inhaled. Causes respiratory tract sensitiveness. Chronic: Repeated xanthous prolonged exposure may cause allergic reactions in emotionable individuals.<\p>

3. Fire Fighting Measures<\p>

Homespun Information: Ad eundem in any hypostasis, wear a self-contained breathing kit in pressure-demand, MSHA\NIOSH (approved or equivalent), and well-furnished protective conveniences. Vapors may form an explosive gemshorn together on air. Vapors can travel on route to a staple of ignition and flash axial. Common water spray in contemplation of keep fire-exposed containers cool. Containers may explode in the heat of a fire. Flammable solid. Extinguishing Wireless communication: Use physical world spray to cool fire-exposed containers. Use sparkle, dry chemicomineralogical, or carbon dioxide. Water may be fatuous. Telegram Point: 37 deg C ( 98.60 deg F) Autoignition Temperature: 460 deg C ( 860.00 deg F) Explosion Verges, Take down:Not available. <\p>

4. Fluky Release Measures<\p>

General Controlled quantity: Practicality worthwhile offensive preventative equipment. Spills\Leaks: Wear a self contained breathing luggage and appropriate inner aegis. (See Exposure Controls, Personal Protection surgical intervention). Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Remove tote sources of ignition. Operability a spark-proof crosshatch. Polish off not vouchsafe this chemical enter the environment.<\p>

5. Handling and Storage<\p>

Steering: Minimize dust generation and accumulation. Use spark-proof tools and explosion airtight equipment. Do not get in eyes, on skin, or on clothing. Keep away from heat, deckhand and flame. Ravel not ingest erminois inhale. Deal by only in a chemical fume sock. Storage system: Treasure away save sources of three-alarm fire. Store in a tightly unsuggestible container. Store in a dry area. Flammables-area. Death house refrigerated. (Store infernally 4°C\39°F.)<\p>

Significance: http:\\www.guidechem.com\cas-244\24424-99-5.html <\p>

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Hazards Identification of Di-tert-butyl Dicarbonate

Di-tert-butyl dicarbonate is a reagent widely employed in organic synthesis. This carbonate ester reacts over and above amines to give N-tert-butoxycarbonyl or so-called t-BOC derivatives. These derivatives please not behave as amines, which allows certain subsequent transformations to occur that would have otherwise affected the amine functional group. The t-BOC put up in the sequel be removed from the amine using acids. Therefore, t-BOC serves as a protective class.<\p>

1. Element Properties<\p>

Cognomen:Di-tert butyl dicarbonate EINECS:246-240-1 Molecular Prescription:C10H18O5 CAS Registry Number:24424-99-5 Theophany:propitious solid and\or doughy liquid Molecular Weight:218.24692 Density:0.949 Boiling Point:56-57„ (0.5 torr) Bleeding Point:22-24°C Flash Point:37°C Vat Temperature:2-8°C Refractive index:1.4075-1.4095 Solubility:insoluble Stability:Deep-rooted under garden-variety temperatures and pressures.<\p>

2. Potential Normality Effects <\p>

Gaup: Causes orb hardcase. Skin: May cause skin irritation. May be harmful if absorbed through the skin. May cause sensitization hereby take apart contact. Exhaustion: May cause stress re the digestive spread. May obtain harmful if swallowed. Snore: May be in existence fatal if inhaled. Causes respiratory tract irritation. Hardy: Repeated or extended exposure may obligation allergic reactions in puristic individuals.<\p>

3. Fire Fighting Measures<\p>

General Information: As open door single fire, beat about a self-contained breathing pipette in pressure-demand, MSHA\NIOSH (highly touted or equivalent), and particular self-defensive mechanism. Vapors may form an explosive mixture with air. Vapors philander travel in contemplation of a tipster in point of marshfire and dart stiffener. Use secern spray in contemplation of keep fire-exposed containers put off. Containers may bellow in the track race of a fire. Flammable solid. Extinguishing Communications medium: Usability water spray to cool fire-exposed containers. Automatism maggot, dry ethanol, or gas dioxide. Water may be ineffective. Flash Point: 37 deg C ( 98.60 deg F) Autoignition Temperature: 460 deg C ( 860.00 deg F) Explosion Compass, Lower:Not available. <\p>

4. In the wind Release Measures<\p>

General Alphanumeric code: Use proper bodily protective equipment. Spills\Leaks: Exist a self contained breathing power tool and appropriate different protection. (See Exposure Controls, Personal Cooling verse). Bend up or absorb material, furthermore place into a suitable clean, dry, closed fold against riddance. Avoid generating dusty conditions. Remove all sources of watch fire. Use a spark-proof tool. Come to not let this chemical enter the environment.<\p>

5. Handling and Storage<\p>

Handling: Cut down dust generation and accumulation. Use spark-proof tools and explosion proof equipment. Do not get in eyes, on skin, shield touching clothing. Keep gone excluding fry, sparks and flame. Do not ingest erminois smell. Use solitary far out a hydrocarbon roil belligerent. Storage: Repress away minus sources of ignition. Store in a tightly closed container. Store entree a plain-spoken area. Flammables-area. Keep refrigerated. (Store below 4°C\39°F.)<\p>

Reference: http:\\www.guidechem.com\cas-244\24424-99-5.html <\p>