Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity
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4-(beta-D-Galactosido)-D-glucose(63-42-3)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity

Product Identification

Product Name
4-(beta-D-Galactosido)-D-glucose
Synonyms
4-(b-D-Galactosido)-D-glucose
D-Glucose, 4-O-b-D-galactopyranosyl
D-Lactose
Lactin
Lactobiose
Milk sugar
CAS
63-42-3
Formula
C12H22O11
Molecular Weight
342.3
EINECS
200-559-2
RTECS
OD9625000
RTECS Class
Tumorigen; Reproductive Effector; Natural Product
Merck
12,5356
Beilstein/Gmelin
93796
Beilstein Reference
4-17-00-03066

Physical and Chemical Properties

Appearance
White hard crystalline powder.
Solubility in water
Very soluble
Melting Point
222.8
Boiling Point
592
pKa/pKb
12.39 (pKa)
Partition Coefficient
-4.12
Usage
Both forms of lactose are employed, with the form predominating: as a nutrient in preparing modified milk and food for infants and convalescents (whittier).

First Aid Measures

Ingestion
Get medical aid if irritation or symptoms occur.
Inhalation
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
Skin
Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water.
Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage
Store in a cool, dry place. Keep container closed when not in use.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Low hazard for usual industrial handling.
Inhalation
Low hazard for usual industrial handling.
Skin
May cause skin irritation. Low hazard for usual industrial handling.
Eyes
May cause eye irritation.

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Fire Fighting Measures

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 spray, dry chemical, carbon dioxide, or chemical foam.

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.

Stability and Reactivity

Incompatibilities
Oxidizers.
Stability
Stable under normal temperatures and pressures.
Decomposition
Carbon monoxide, carbon dioxide.
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