Standard Indonesian Rubber, Naturel Rubber, SIR , SIR 3CV50, SIR 3CV60, SIR 3L, SIR 5, SIR 10, SIR 20, SIR-3L, SIR-5, SIR-10, SIR-20, 9006-04-6

Standard Indonesian Rubber, Naturel Rubber, SIR , SIR 3CV50, SIR 3CV60, SIR 3L, SIR 5, SIR 10, SIR 20, SIR-3L, SIR-5, SIR-10, SIR-20, 9006-04-6

The CAS number for Standard Indonesian Rubber (SIR) is 9006-04-6.

Standard Indonesian Rubber (SIR) is a type of natural rubber classified according to technical specifications. Here are some key details about SIR:

Standard Indonesian Rubber (SIR):

Physical Properties

• Appearance: White or light yellow solid

• Density: 0.92 - 0.94 g/cm³

• Melting Point: 180 - 220°C

• Solubility: Insoluble in water, but soluble in organic solvents

Chemical Properties

• Chemical Formula: (C₅H₈)n

• Molecular Weight: Variable, depending on the degree of polymerization

• Dirt Content: Maximum 0.03% - 0.2% (depending on the grade)

• Ash Content: Maximum 0.5% - 1% (depending on the grade)

• Nitrogen Content: Maximum 0.6%

• Volatile Matter: Maximum 0.8%

• Initial Plasticity (Po): Minimum 30

• Plasticity Retention Index (PRI): Minimum 50 - 75 (depending on the grade)

• Mooney Viscosity: Values such as 50 ± 5 and 60 ± 5 (ML 1+4 at 100°C)

These properties make SIR suitable for a wide range of applications, including tires, footwear, and industrial products.

General Information

• Production: Indonesia produces approximately 2 million tonnes of rubber per year, primarily in North and South Sumatra, Riau, Jambi, and West Kalimantan. The country is the second-largest rubber producer in the world, after Thailand.

• Export: About 85% of Indonesia's rubber output is exported, mainly to countries like Singapore, China, Japan, the USA, and Brazil.

Grades and Specifications

SIR is available in various grades, each with specific properties:

• SIR 3CV50: Maximum dirt content 0.03%, ash content 0.5%, nitrogen content 0.6%, volatile matter 0.6%, initial Wallace plasticity 30, plasticity retention index 60, Mooney viscosity 50 ± 5.

• SIR 3CV60: Similar to SIR 3CV50 but with a Mooney viscosity of 60 ± 5.

• SIR 3L: Maximum dirt content 0.03%, ash content 0.5%, nitrogen content 0.6%, volatile matter 0.8%, initial Wallace plasticity 30, plasticity retention index 75.

• SIR 5: Maximum dirt content 0.05%, ash content 0.5%, nitrogen content 0.6%, volatile matter 0.8%, initial Wallace plasticity 30, plasticity retention index 70.

• SIR 10: Maximum dirt content 0.1%, ash content 0.75%, nitrogen content 0.6%, volatile matter 0.8%, initial Wallace plasticity 30, plasticity retention index 60, Mooney viscosity 60 ± 5.

• SIR 20: Maximum dirt content 0.2%, ash content 1%, nitrogen content 0.6%, volatile matter 0.8%, initial Wallace plasticity 30, plasticity retention index 50, Mooney viscosity 60 ± 5.

Uses

• Tire Industry: A significant portion of SIR is used in the tire industry due to its high quality and consistency.

• Industrial Products: SIR is also used in the production of various industrial products such as gaskets, hoses, and other rubber items.

Challenges

• Yield: Indonesia's yield per hectare is lower compared to other top rubber producers due to older rubber trees and low investment capabilities of farmers.

• Processing: Indonesia relies on processed rubber products from abroad due to its underdeveloped processing and manufacturing plants.

These details provide a comprehensive overview of Standard Indonesian Rubber (SIR) and its significance in the global rubber industry.

Documents

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• SIR SPECIFICATIONS BETAKIM.pdf
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