Product Identification

Product Name

Uracil

Synonyms

1H-Pyrimidine-2,4-dione
2,4(1H,3H)-Pyrimidinedione
Dichlorotitanium
Pirod
Pyrimidine-2,4(1H,3H)-dione
Pyrod
Titanium dichloride

CAS

10049-06-6

CAS

66-22-8

Formula

C4H4N2O2

Formula

Cl2Ti

Molecular Weight

112.09

Molecular Weight

118.77

EINECS

200-621-9

EINECS

233-164-9

RTECS

YQ8650000

RTECS Class

Tumorigen; Mutagen; Reproductive Effector

Merck

12,9985

Merck

13,9548

Beilstein/Gmelin

606623

Beilstein Reference

5-24-06-00043

Physical and Chemical Properties

Appearance

black hexagonal crystals

Appearance

White to off-white powder.

Solubility in water

Soluble

Melting Point

194

Boiling Point

379

Density

0.98605 - 0.99744 g/cm3 (55 - 25 C)

pKa/pKb

9.45(at 25℃) (pKa)

Partition Coefficient

-.95

Usage

Substance is used in biochemical research.

First Aid Measures

Ingestion

If swallowed, wash out mouth with water provided person is conscious. Call a physician.

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid if irritation or symptoms occur.

Inhalation

If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.

Skin

In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Eyes

In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Handling and Storage

Storage

Keep tightly closed. Keep away from heat, sparks, and open flame.

Storage

Store in a cool, dry place. Keep container closed when not in use.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion

May cause irritation of the digestive tract.

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

Hazards

Emits toxic fumes under fire conditions. Material readily reacts with water generating flammable and/or explosive hydrogen gas. This material, like most materials in powder form, is capable of creating a dust explosion.

EC Risk Phrase

14/15 17 34

EC Safety Phrase

16 24 26 36/37/39 45

UN (DOT)

3200

Exposure Controls/Personal Protection

Personal Protection

Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.

Personal Protection

Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.

Respirators

Use respirators and components tested and approvedunder appropriate government standards such as NIOSH (US) or CEN (EU). Where risk assessment shows air-purifying respirators are appropriate use a dust mask type N95 (US) or type P1 (EN 143) respirator.

Respirators

Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Exposure Effects

Harmful if swallowed, inhaled, or absorbed through skin. Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting. Inhalation may result in spasm, inflammation and edema of the larynx and bronchi, chemical pneumonitis, and pulmonary edema. Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin.

Fire Fighting Measures

Fire Fighting

Use approved class D extinguishers or smother with dry sand, dry ground limestone, or dry clay. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Fire Potential

Pyrophoric material.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.

Small spills/leaks

Cover with dry-lime, sand, or soda ash. Place in covered containers using non-sparking tools and transport outdoors. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Stability

May decompose on exposure to air. Reacts violently with water.

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Incompatibilities

Water, air, strong oxidizing agents.

Decomposition

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Decomposition

Hydrogen chloride gas, Titanium/titanium oxides, Hydrogen gas.

Transport Information

UN Number

3200

Hazard Class

4.2

Packing Group

I