BIOLAB Immersion Oil (Microscopy Grade) is a professional microscopy accessory supplied in convenient dropping bottles for use with compatible oil-immersion microscope objectives.
The oil is placed between the microscope slide / coverslip and the front lens of an objective specifically designed for oil immersion. This reduces the refractive-index mismatch caused by an air gap and helps the objective collect more light from the specimen.
BIOLAB currently supplies this product in two pack sizes:
The dropping-bottle format enables controlled application of immersion oil during routine professional microscopy.
Important: Use only with microscope objectives specifically designed and marked for oil immersion. Always confirm compatibility with the microscope / objective manufacturer before use.
| Specification | 25 mL Variant | 150 mL Variant |
|---|---|---|
| Brand | BIOLAB Diagnostics | |
| Product | Immersion Oil – Microscopy Grade | |
| Pack Size | 25 mL | 150 mL |
| BIOLAB Catalogue No. | AR 551 | AR 550 |
| Container | Dropping Bottle | |
| Grade | Microscopy Grade | |
| Primary Application | Oil-Immersion Microscopy | |
| Use | Professional Laboratory Microscopy | |
Immersion oil is an optical medium used between a microscope slide or coverslip and an objective lens designed specifically for oil immersion.
When a specimen is viewed through air, some light passing through the glass is refracted away from the microscope objective.
An appropriate immersion medium reduces the refractive-index difference between the glass and the space immediately before the objective lens. This allows more useful light rays to reach the objective.
The result can be improved:
The key purpose of immersion oil is to replace the air gap between the specimen and the compatible immersion objective.
Glass typically has a substantially higher refractive index than air. When light exits the glass into air, some light bends away from the objective and is lost.
Using a correctly matched immersion medium reduces this optical mismatch and enables the immersion objective to capture a greater proportion of the available light.
This is particularly important in high numerical-aperture microscopy, where resolving fine specimen details is required.
Use BIOLAB Immersion Oil only with a microscope objective designed specifically for oil immersion.
Oil-immersion objectives are normally identified by markings such as:
A 100× objective is commonly an oil-immersion objective on many laboratory microscopes, but magnification alone must never be used to determine compatibility.
Always read the objective marking before applying oil.
Do not apply immersion oil to an objective intended for dry operation unless the objective manufacturer specifically permits it.
Using oil on an incompatible objective may:
Always confirm the objective type before use.
Microscopy-grade immersion oil may be used in professional laboratory applications involving compatible oil-immersion objectives, including:
Suitability depends on the microscope objective and imaging technique being used.
Many routine laboratory microscopes use an oil-immersion objective at approximately 100× objective magnification.
A general workflow may include:
This is general microscopy guidance only. Always follow the operating instructions supplied with your microscope and objective.
Air trapped between the microscope slide and immersion objective can interfere with optical performance.
To reduce bubbles:
If bubbles remain, follow the microscope manufacturer's recommended procedure for removing and reapplying immersion oil.
A microscope immersion objective is designed around specific optical properties.
Standard microscope glass has a refractive index around the same range as conventional microscopy immersion oils, which helps reduce refraction at the glass-to-objective interface.
However, the exact immersion medium required depends on the objective design.
Do not assume all oils are interchangeable. High-performance fluorescence, confocal, live-cell or specialised objectives may require a specific immersion oil or a different immersion medium such as water, glycerol or silicone.
| Feature | 25 mL | 150 mL |
|---|---|---|
| Catalogue No. | AR 551 | AR 550 |
| Format | Dropping Bottle | Dropping Bottle |
| Useful For | Lower-volume, individual microscope or teaching requirements | Higher-volume laboratory microscopy requirements |
| Which Should I Choose? | Select according to microscopy frequency, number of microscopes and expected consumption. | |
Immersion oil should not be allowed to remain indefinitely on the objective front lens.
After completing microscopy:
Incorrect cleaning can damage optical coatings or push contamination around the front element.
Always follow the microscope manufacturer's cleaning instructions.
Avoid mixing immersion oils from different formulations unless the microscope manufacturer specifically states that they are compatible.
Different oils may have different:
Mixing incompatible oils can reduce optical performance.
Immersion oil is typically used as part of a complete microscopy workflow involving correctly prepared slides and appropriate optical equipment.
Microsidd supplies Microscope Glass Slides for professional microscopy applications.
For additional microscopy consumables, browse the Microscope Slides & Laboratory Glassware Collection, including slides and cover slips.
BIOLAB Immersion Oil can be sourced alongside other professional laboratory consumables through Microsidd India.
Browse:
This makes it easier for laboratories to purchase microscopy consumables and other laboratory products through the same specialist healthcare supplier.
Store BIOLAB Immersion Oil according to the conditions printed on the current manufacturer bottle label.
Good laboratory handling includes:
If the current BIOLAB bottle label or documentation differs from general information displayed online, follow the manufacturer instructions supplied with the product.
Microscopy products should be purchased by verifying the exact brand, grade, pack size, objective compatibility and laboratory application.
Microsidd India combines online ordering with a Bengaluru-based diagnostic and laboratory-products business and provides detailed product information designed to help professional users select the correct laboratory product.
| Buying Consideration | Microsidd India | General Local Market / Marketplace |
|---|---|---|
| Exact Product | BIOLAB Microscopy Grade Immersion Oil clearly identified | Product grade may vary by seller |
| Pack Options | 25 mL & 150 mL variants clearly separated | Pack size may be unclear in combined listings |
| Catalogue Numbers | AR 551 / AR 550 identified | May not always be mentioned |
| Microscopy Information | Oil-immersion compatibility and handling explained | Often limited to short marketplace description |
| Related Products | Slides, cover slips and laboratory consumables available | Depends on individual seller |
| GST Invoice | Available for eligible purchases | Seller dependent |
| Bengaluru Presence | Physical business presence in RT Nagar, Bengaluru | Depends on seller location |
| Institutional Procurement | Laboratory and bulk requirements may be supported subject to stock | Varies by seller |
| India-Wide Ordering | Online ordering to serviceable PIN codes across India | Depends on marketplace and seller |
Microsidd India is a diagnostic, medical and laboratory-products supplier based in RT Nagar, Bengaluru.
Laboratories, medical colleges and microscopy users searching for immersion oil in Bangalore, microscope immersion oil Bengaluru, BIOLAB immersion oil 25 mL, BIOLAB immersion oil 150 mL, oil immersion microscope accessories, microscopy supplies near RT Nagar or laboratory consumables in Bangalore can check current availability through Microsidd.com.
For a specific pack size or planned local pickup, confirm stock before visiting because inventory can change.
Business Name: Microsidd India
Address: #09, Green Chambers, 14th Cross, RT Nagar, Bengaluru – 560032, Karnataka, India
Phone / WhatsApp: +91 63667 72288
Email: support@microsidd.com
Website: https://microsidd.com
Working Hours: Monday to Saturday, 10:00 AM – 6:00 PM IST
View Microsidd India on Google Maps
For Bengaluru business and local ordering information, visit Microsidd India – Medical & Laboratory Supplies Bangalore.
It is a microscopy-grade optical medium used between a specimen slide / coverslip and a compatible oil-immersion objective to reduce light refraction and support optical resolution.
BIOLAB supplies this product in 25 mL and 150 mL dropping bottles.
The BIOLAB catalogue number for the 25 mL variant is AR 551.
The BIOLAB catalogue number for the 150 mL variant is AR 550.
Both are microscopy-grade immersion-oil variants. The primary difference is pack quantity. Choose according to your laboratory's expected consumption and microscopy volume.
When used with a correctly designed oil-immersion objective, an appropriate immersion medium reduces refraction and allows the high-NA objective to collect more useful light, supporting better resolving performance.
Many routine microscopes use oil with a 100× objective. However, always check that the objective is specifically marked for oil immersion before applying oil.
No. Use it only with an objective designed for oil immersion and confirm compatibility with the microscope or objective manufacturer's instructions.
Only if that particular 40× objective is specifically designed and marked for oil immersion. Many 40× objectives are dry objectives and should not be exposed to immersion oil.
Air bubbles reintroduce a low-refractive-index gap into the optical path and may interfere with image quality and illumination.
Use enough to create continuous contact between the specimen area and compatible oil-immersion objective without excessive spreading. Follow the microscope manufacturer's operating instructions.
Yes. Excess immersion oil should normally be removed from the objective after microscopy according to the objective manufacturer's cleaning instructions.
Use suitable optical lens paper and only cleaning materials or solvents recommended by the microscope / objective manufacturer. Avoid rough tissue and abrasive cleaning materials.
Mixing different oils is not recommended unless compatibility is specifically confirmed, because refractive index, dispersion, viscosity and other optical characteristics may differ.
Do not assume a general-purpose immersion oil is suitable for fluorescence. Fluorescence microscopy can require specially formulated low-autofluorescence oil. Confirm the requirements of your fluorescence objective before use.
No. An objective designed for water immersion should normally use the immersion medium specified by its manufacturer. Oil, water, glycerol and silicone objectives are optically different.
No. Immersion oil is an optical microscopy medium / laboratory accessory. It does not itself detect, diagnose or measure a medical condition.
It is intended for professional laboratory and microscopy use by users familiar with oil-immersion microscopy and microscope maintenance.
Follow the storage conditions on the current BIOLAB bottle label. Keep the container securely closed and protect the product from contamination.
BIOLAB Microscopy Grade Immersion Oil can be ordered through Microsidd.com subject to current availability. Microsidd India is based in RT Nagar, Bengaluru.
Bulk and institutional requirements may be supported depending on current inventory, required pack size, quantity and applicable commercial terms.
Microsidd supplies professional laboratory products to serviceable PIN codes across India, subject to stock, product handling requirements and courier serviceability.
BIOLAB Immersion Oil is intended for professional microscopy and laboratory use.
This product is an optical immersion medium and does not itself diagnose, screen for or measure any medical condition.
The information on this page is provided for product identification, procurement and general microscopy education and does not replace:
Using an incorrect immersion medium can reduce image quality and may affect objective performance. Always verify objective compatibility before application.
If the current BIOLAB bottle label or microscope manufacturer's instructions differ from general information displayed online, follow the applicable current manufacturer documentation.
This laboratory consumable is non-returnable and non-exchangeable once correctly supplied.
Please verify before ordering:
Ordering the wrong pack size or an immersion oil that is incompatible with your microscope objective is not considered a product defect when the product supplied matches the confirmed order.
Laboratory liquids and consumables may be affected by contamination, storage and handling after delivery. Correctly supplied products therefore cannot normally be accepted back into saleable inventory.
Genuine cases involving incorrect supply, verified transit damage, materially misdescribed goods or other remedies required under applicable law will be handled according to the Microsidd Refund, Return, Replacement & Cancellation Policy.
An original, continuous, unedited and uncut unboxing video is compulsory for delivery-related claims involving an incorrect, leaking, missing or damaged product.
The recording must begin before opening the parcel. Open the carton carefully by cutting the sealing tape with a blade or suitable cutter; do not tear open the carton. Keep the courier label, sealed parcel, product bottle, cap and condition continuously visible while opening.
Product: Immersion Oil – Microscopy Grade Dropping Bottle
Brand: BIOLAB Diagnostics
Pack Sizes: 25 mL & 150 mL
25 mL Catalogue No.: AR 551
150 mL Catalogue No.: AR 550
Category: Microscopy Accessory / Laboratory Consumable
Primary Application: Oil-Immersion Microscopy
Objective Compatibility: Use only with objectives designed for oil immersion
Typical Applications: Microbiology, Haematology, Histology, Pathology, Teaching & Research Microscopy
Use: Professional Laboratory / Microscopy Use
Supplier: Microsidd India
Supplier Location: RT Nagar, Bengaluru, Karnataka, India
