Dry Block Bath with Stirrer BBS+RCH

• For a safe and clean research environment with no oil splatter, smoke, or fire hazards.

BBS aluminum blocks

This synthesis apparatus consists of the proprietary BBS aluminum block, offering heat transfer performance equal to or better than oil, and RCH-1000/RCH-3 hot plates with magnetic stirrers.

The dry design eliminates the risks and mess associated with oil, ensuring safe and clean operation. Aluminum blocks and optional parts can be selected according to research needs, allowing for versatile configurations to accommodate various vessel sizes and types.

♦ Eliminates concerns associated with oil use, such as spills, splatter, smoke, and fire hazards, while also removing the hassle of oil replacement. This ensures a clean and safe research environment.

♦ The aluminum block features a white anodized coating for enhanced chemical resistance and includes two temperature sensor insertion holes (3.2mm diameter).

♦ The aluminum block is designed in which it corrects the gap according to the variation of the glass vessel and expansion/contraction due to heat. There is no damage to the flask due to expansion/contraction during heating, and stable heat transfer performance is maintained at all times (PAT).

▶▶ Introductory of correcting the gap of the aluminum block

• Eliminates hazards associated by oil baths

Oil baths pose the risk of hot oil spilling, scattering, emitting smoke, or catching fire, while mantle heaters can cause the liquid to ignite the heating wire if the flask breaks. SynFlex™ BBS series does not use oil, so reactions can be carried out safely, cleanly, and in a short time.

• Uniform and safe heating (up to 250℃)

The aluminum alloy block has good heat transfer, preventing the accumulation of high-temperature oil (hot spots) that is common in oil baths, and ensures uniform and safe heating.

• Faster heating time than oil bath

The high thermal conductivity of the aluminum block ensures uniform heating, reducing heat shock (temperature differences) between the sample and the aluminum block. This allows for faster temperature increases compared to oil baths, further shortening reaction times.

• Comparison of heating rates for heat transfer media

• BBS combination guide

♦ Combination with RCH-1000 (Vessel capacity: 5 to 5000mL)

Multi series		Fix series
Adapter (Capacity: 5 to 100mL)		—
		Aluminum block (less than 1L) Capacity: 200mL to 1L	Aluminum block (2L or more) Capacity: 2 to 5L
Single holder	Triple holder
Hot plate with magnetic stirrer (RCH-1000, sold separately)

♦ Combination with RCH-3 (Vessel capacity: 5 to 500mL)

Multi series	Fix series
Adapter (Capacity: 5 to 100mL)	—
Single holder	Aluminum block (less than 500ｍL) Capacity: 200 to 500mL
Hot plate with magnetic stirrer（RCH-3, sold separately)

Aluminum blocks for a wide range of applications

We offer a wide selection of aluminum blocks, including the Multi series, which combines adapters and holders for small-capacity applications, and the Fix series for directly accommodating large-capacity vessels. All blocks feature an anodized coating for enhanced chemical resistance.

• Multi series selection table

The Multi series aluminum blocks are designed for small-capacity applications ranging from 5 to 100mL. Two types of holders are available: single and triple, which can be paired with adapters to accommodate various vessel sizes. This versatile combination ensures precise and efficient temperature control for small-volume samples.

※1 When using a triple holder, the flask tolerance is +1mm.

※2 When using a triple holder, the flask tolerance is +0mm.

※3 When using a triple holder, the flask tolerance is ±2mm.

• Availability of adapters and holders (Multi series)

• Fix series selection table

The Fix Series aluminum blocks are designed for large-capacity containers ranging from 200 to 5000 mL, allowing reaction vessels to be directly mounted onto the aluminum block. This setup provides stable and efficient temperature control for larger sample volumes, making it ideal for a wide range of applications.

• Availability of aluminum blocks (Fix series)

• Specifications

• RCH hot plate with magnetic stirrer

• When using BBS aluminum blocks with RCH-1000

• Options

• SynFlex™ BBS aluminum bath

This aluminum bath is designed to accommodate a variety of vessel shapes. By filling the aluminum bath with aluminum beads, you can use a wide range of vessels efficiently.

Note: It is not suitable for experiments requiring temperature accuracy.

• All Teflon^® magnetic stirring impellers for reaction vessels

Example of installation in a 5L round bottom flask reaction vessel

During operation, the stirring bar rotates while hovering a few millimeters above the bottom of the flask. The stirring bar remains securely fixed at the tip of the stirring impeller in a floating position, preventing contact with the flask. This eliminates concerns about breakage or friction with the flask and minimizes the risk of the stirring bar bouncing.

Operating Temperature Range: Up to 180°C
Operating Rotation Range: Up to 600 rpm

• Small separable flask set

By using the BBS aluminum blocks (Multi-Series) with test tube adapters, small separable flasks can be utilized.

These flasks feature a wide opening, making it easy to extract products and clean the interior. Available in four types in 50, 100, and 150mL size. These small separable flasks come with multiple connection ports for various applications. The 50mL and 100mL flasks have two color-coded scales, allowing for convenient monitoring of reagent quantities. Stirring with either a stirring bar or an impeller is also possible.

• Catalyst screening vessel, Microscale CSTR® (Continuous Stirred Tank Reactor) 

By using the BBS-1HLD (Single holder), catalyst screening vessels can be utilized. Three types of screening vessels, 6, 18, and 24, can hold up to 24 small samples at the same time, making it easy to perform normal and high pressure reaction screening. All vessels operate under identical atmospheric and temperature conditions, ensuring consistency across experiments.

• Micro-scale CSTR^® (Continuous Stirred Tank Reactor)

In addition, the micro-scale CSTR^® HIP-CSTR can be configured with the dedicated BBS-1HLD-M (single holder 88mm ID).

Product name	Capacity	Model	Cat. No.
Catalyst screening vessels (Max. operating pressure 5MPa)	1.5 to 7.0mL x 6 pcs	HIP-7506	248370
	0.3 to 1.3mL x 18 pcs	HIP-7518	248380
	0.1 to 0.8mL x 6 pcs	HIP-7524	248390
On-head with Pressure gauge -100/0/2400kPa, Relief valve, Ball valve		HIP-HEAD2	248400
Single holder	For catalyst screening	BBS-1HLD	239810
Micro-scale CSTR® (Continuous Stirred Tank Reactor)	Approx. 14mL (priming volume) Vessel: SUS316L	HIP-CSTR-SUS	278360
	Approx. 14mL (priming volume) Vessel: PTFE	HIP-CSTR-PTFE	278370
	Approx. 14mL (priming volume) Vessel: Impervious graphite (Tokabate) TK11	HIP-CSTR-TK	278380
Single holder	For micro-scale CSTR®, 88mm ID	BBS-1HLD-M	278540

• Optional parts

Please select various parts according to your application needs.

• Teflon^® stirring bar, aluminum block compatibility table

• Stirring bars compatible with triple holder

Use at a rotation speed of 400rpm or more.