Using Isopropyl Isostearate in Rubber & Polymer Additives: a few gates to clear first
Six or seven of every ten Isopropyl Isostearate (CAS 68171-33-5) enquiries are really “is this right for my case?”. This page follows mechanism → selection → pitfalls to answer that.
What it does in the system
What actually decides the result is not a single number.In Rubber & Polymer Additives, Isopropyl Isostearate (CAS 68171-33-5) usually acts as a modifier, vulcanising or functional additive, changing the processing window, mechanical behaviour or heat / ageing resistance. Polymer systems are sensitive to additive compatibility and thermal history; a small mismatch can cause voids, bleed-out or performance drop. Comparable grades:
- Isopropyl β-D-Thiogalactopyranoside (IPTG)：a comparable grade often evaluated alongside。
- Isopropyl Citrate (CAS 39413-05-3)：a comparable grade often evaluated alongside。
- Isopropyl Palmitate (CAS 142-91-6)：a comparable grade often evaluated alongside。
- Isopropyl Myristate (CAS 110-27-0)：a comparable grade often evaluated alongside。
- Isopropylthiourea (CAS 1719-76-2)：a comparable grade often evaluated alongside。
- Isopropylmagnesium chloride (CAS 1068-55-9)：a comparable grade often evaluated alongside。
- Isopropyl Lauroyl Sarcosinate (CAS 230309-38-3)：a comparable grade often evaluated alongside。
- ISOPROPYL THIOISOVALERATE (CAS 34322-06-0)：a comparable grade often evaluated alongside。
Basic specifications
| Name | Isopropyl Isostearate |
|---|---|
| English name | Isopropyl Isostearate |
| CAS No. | 68171-33-5 |
| Formula | C21H42O2 |
| Molecular weight | 326.6 g/mol |
| Applications | Rubber & Polymer Additives |
| Standard purity | per batch COA |
| Packaging | confirmed per order |
| Storage | keep sealed in a cool, dry place |
Figures above are published / typical information; final values follow the batch COA and order confirmation.
Key physical data: molecular formula C21H42O2, molecular weight 326.6 g/mol, CAS 68171-33-5. These are published physical properties; purity and packaging follow the batch COA and order confirmation.
How to get the choice right
The one I weigh most: Confirm compatibility with the base polymer and the recommended dosing range to avoid phase separation or blooming.
Watch thermal stability and the processing-temperature window to prevent decomposition, voids or discoloration.
Run mechanical and ageing trials to verify the real contribution to tensile, hardness and heat resistance.
Retain samples of critical lots and check batch-to-batch performance consistency.
What newcomers overlook
- Watching assay but ignoring compatibility: incompatibility causes bleed-out that hurts appearance and performance.
- Ignoring thermal history: exceeding the decomposition point during processing creates voids or discoloration.
- Skipping mechanical trials: whether performance actually improves should come from data, not feel.
Things we get asked a lot
What does Isopropyl Isostearate do in Rubber & Polymer Additives?
As a modifier or functional additive it affects the processing window, mechanical behaviour or ageing resistance; the exact role depends on compatibility and dosing.
Which indicators should I confirm when sourcing Isopropyl Isostearate?
Beyond main assay, confirm base-polymer compatibility, thermal stability and recommended dosing, then validate by trial.
Can these materials be used directly in finished articles?
Products here are supplied for industrial and research use. Article use requires compatibility and performance validation plus applicable safety standards.
Related raw materials
- Isopropyl β-D-Thiogalactopyranoside (IPTG)
- Isopropyl Citrate (CAS 39413-05-3)
- Isopropyl Palmitate (CAS 142-91-6)
- Isopropyl Myristate (CAS 110-27-0)
- Isopropylthiourea (CAS 1719-76-2)
- Isopropylmagnesium chloride (CAS 1068-55-9)
See site search for Isopropyl Isostearate or browse the Organic Chemicals directory.
Procurement contact
Jinan Shenghe Chemical Co., Ltd. supplies chemical raw materials and fine chemicals; a COA ships with every batch, with MSDS and technical data sheets available on request. In your enquiry include product name, CAS, target purity and packaging, and we will provide documents and a quote to the relevant standard.
Contact: info@591daili.com | +86-18553102138
Note: This page is for industrial raw-material technical discussion only. Products are supplied for industrial and research use, not for consumer or medical use. Drinking-water, food, cosmetic or pharmaceutical applications must meet applicable regulations and customer standards; specifications, compliance documents and transport requirements follow the batch COA and order confirmation.