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        Lactose

        CAS No.: 63-42-3
        Formula: C12H22O11
        Molecular Weight: 342.3
        Suppliers: All(0) China Suppliers(9) Products(47)
        • Description
        • Basic Info
        • Safety Info
        • MSDS
        • Price
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        What is Lactose

        **Introduction to Lactose** Lactose is a natural disaccharide sugar found in milk and dairy products, composed of glucose and galactose. It serves as a primary energy source for infants and is widely used in the food and pharmaceutical industries. While lactose provides nutritional benefits, some individuals lack sufficient lactase enzyme to digest it, leading to lactose intolerance. In food production, lactose enhances texture, flavor, and browning properties in baked goods, confectionery, and processed foods. It is also used as a filler in medications and supplements. Available in various forms like powder or crystalline, lactose remains a versatile ingredient despite dietary restrictions for some consumers.

        Preparation Process: Lactose is a disaccharide composed of glucose and galactose, primarily obtained from milk. The preparation method involves the following steps: 1. **Source Extraction**: Obtain raw milk (typically cow or buffalo milk) and separate the cream to obtain skim milk. 2. **Precipitation**: Acidify skim milk (pH 4.6) to precipitate casein, leaving whey containing lactose. 3. **Concentration**: Heat the whey to evaporate water, then filter to remove residual proteins. 4. **Crystallization**: Cool the concentrated whey to induce lactose crystallization. 5. **Purification**: Wash the crystals with cold water or ethanol to remove impurities. 6. **Drying**: Dry the purified lactose crystals under controlled conditions to obtain the final product.

        Usage Scenarios: Lactose is a disaccharide sugar found in milk, composed of glucose and galactose. It serves as a primary energy source for infants and young mammals. In the food industry, lactose is used as a sweetener, filler, or stabilizer in dairy products, baked goods, and processed foods. It enhances texture and flavor in items like ice cream and cheese. Lactose is also utilized in pharmaceuticals as an excipient in tablets and capsules due to its compressibility and low reactivity. Fermentation of lactose produces lactic acid, essential in yogurt and probiotic production. Additionally, lactose derivatives are used in infant formula to mimic human milk composition.

        Lactose Basic Info
        Chemical Name Lactose
        Synonyms D-LACTOSE;MILK SUGAR;BETA-LACTOSE;LACTIN;Lactosum;LACTOBIOSE;D-Lactose Anhydrous;Lactosum , anhydrous;Lactose (anhydrous) CRS;4-O-BETA-GALACTOPYRANOSYL-D-GLUCOSE
        CAS No. 63-42-3
        Molecular Formula C12H22O11
        Molecular Weight 342.3
        PSA 197.37000
        LogP -5.55460
        Safely Info
        RTECS OD9625000
        Hazard Class -
        Safety Statements 24/25
        HS Code 17021100
        WGK Germany 2
        Packing Group -
        RIDADR -
        Risk Statements -
        Hazard Codes -
        Caution Statement -
        Hazard Declaration -
        Symbol -
        Signal Word -
        Lactose Price
        United States: $2-4 per pound
        China: $1-3 per pound
        Russia: No results
        Germany: $3-5 per pound
        India: $1-2 per pound
        Japan: $3-5 per pound
        Brazil: $2-4 per pound
        South Korea: $2-3 per pound
        Philippines: $1-3 per pound
        United Kingdom: $4-6 per pound
        France: $3-5 per pound
        Mexico: $2-4 per pound
        Canada: $4-6 per pound
        South Africa: $1-3 per pound
        Egypt: No results
        Turkey: $2-4 per pound
        Thailand: $1-3 per pound
        Indonesia: $1-2 per pound
        MSDS
        MSDS
        Name: Lactose Material Safety Data Sheet
        Synonym: Milk sugar; Beta-d-lactos
        CAS: 63-42-3
        Section 1 - Chemical Product   MSDS Name:Lactose Material Safety Data Sheet
        Synonym:Milk sugar; Beta-d-lactos
        Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
        CAS# Chemical Name content EINECS#
        63-42-3 Beta-d-lactose 100 200-559-2
        Hazard Symbols: None Listed.
        Risk Phrases: None Listed.
        Section 3 - HAZARDS IDENTIFICATION
          EMERGENCY OVERVIEW
        The toxicological properties of this material have not been fully investigated.
        Potential Health Effects
        Eye:
        May cause eye irritation.
        Skin:
        May cause skin irritation.
        Ingestion:
        May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
        Inhalation:
        May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
        Chronic:
        No information found.
        Section 4 - FIRST AID MEASURES
          Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
        Skin:
        Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water.
        Ingestion:
        Get medical aid if irritation or symptoms occur.
        Inhalation:
        Remove from exposure and move to fresh air immediately. Get medical aid if cough or other symptoms appear.
        Notes to Physician:
        Section 5 - FIRE FIGHTING MEASURES
          General Information:
        As in any fire, 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. Dust can be an explosion hazard when exposed to heat or flame.
        Extinguishing Media:
        Use water spray, dry chemical, carbon dioxide, or chemical foam.
        Section 6 - ACCIDENTAL RELEASE MEASURES
          General Information: Use proper personal protective equipment as indicated in Section 8.
        Spills/Leaks:
        Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up, then place into a suitable container for disposal.
        Section 7 - HANDLING and STORAGE
          Handling:
        Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
        Storage:
        Store in a cool, dry place. Keep container closed when not in use.
        Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
          Engineering Controls:
        Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
        Exposure Limits CAS# 63-42-3: Personal Protective Equipment 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 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
        Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
         
        Physical State: Solid
        Color: white
        Odor: None reported.
        pH: Not available.
        Vapor Pressure: Not available.
        Viscosity: Not available.
        Boiling Point: Not available.
        Freezing/Melting Point: 120 deg C
        Autoignition Temperature: Not available.
        Flash Point: Not available.
        Explosion Limits, lower: Not available.
        Explosion Limits, upper: Not available.
        Decomposition Temperature:
        Solubility in water: Soluble in water.
        Specific Gravity/Density:
        Molecular Formula: C12H22O11H2O
        Molecular Weight: 360.1608
        Section 10 - STABILITY AND REACTIVITY
          Chemical Stability:
        Stable under normal temperatures and pressures.
        Conditions to Avoid:
        Incompatible materials.
        Incompatibilities with Other Materials:
        Oxidizers.
        Hazardous Decomposition Products:
        Carbon monoxide, carbon dioxide.
        Hazardous Polymerization: Has not been reported.
        Section 11 - TOXICOLOGICAL INFORMATION
          RTECS#:
        CAS# 63-42-3: OD9625000 LD50/LC50:
        CAS# 63-42-3: Oral, rat: LD50 = >10 gm/kg.
        Carcinogenicity:
        Beta-d-lactose - Not listed by ACGIH, IARC, or NTP.
        Other:
        See actual entry in RTECS for complete information.
        Section 12 - ECOLOGICAL INFORMATION
         
        Section 13 - DISPOSAL CONSIDERATIONS
          Products which are considered hazardous for supply are classified as Special Waste and the disposal of such chemicals is covered by regulations which may vary according to location. Contact a specialist disposal company or the local waste regulator for advice. Empty containers must be decontaminated before returning for recycling.
        Section 14 - TRANSPORT INFORMATION
         
        IATA
        Not regulated as a hazardous material.
        IMO
        Not regulated as a hazardous material.
        RID/ADR
        Not regulated as a hazardous material.
        Section 15 - REGULATORY INFORMATION
         
        European/International Regulations
        European Labeling in Accordance with EC Directives
        Hazard Symbols: Not available.
        Risk Phrases:
        Safety Phrases:
        WGK (Water Danger/Protection)
        CAS# 63-42-3: No information available.
        Canada
        CAS# 63-42-3 is listed on Canada's DSL List.
        CAS# 63-42-3 is not listed on Canada's Ingredient Disclosure List.
        US FEDERAL
        TSCA
        CAS# 63-42-3 is listed on the TSCA inventory.

        SECTION 16 - ADDITIONAL INFORMATION
        N/A
        SDS 1.0
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