Quality
1. Chemical Composition: Sodium silicate is a compound derived from silica (sand) and
soda ash. It consists of varying ratios of silica to sodium oxide, affecting its properties.
2. Physical Form: Sodium silicate exists in liquid or solid form. Liquid sodium
silicate, also known as water glass, is a colorless, viscous solution.
3. Level: The pH of sodium silicate solutions typically ranges from 11 to 13,
indicating its alkaline nature.
4. Solubility:Sodium silicate is soluble in water, forming clear solutions. The
concentration of the solution can vary based on its intended use.
5. Viscosity: The viscosity of sodium silicate solutions can vary, influencing its
flow characteristics and application suitability.
1. ISO Standards: Sodium silicate may adhere to ISO standards such as ISO 8656:2012, which
outlines specifications for sodium silicate solutions.
2. Purity Requirements: International grades often specify the minimum purity level of sodium
silicate, ensuring it meets quality standards for various applications.
3. Regulatory Compliance: Sodium silicate should comply with regulations set by international
bodies such as the European Chemicals Agency (ECHA) or the Environmental Protection Agency (EPA) in
the United States.
4. Consistency in Properties: International grades aim to establish consistency in
properties, allowing users to rely on sodium silicate for specific applications with predictable
results.
5. Trace Element Control: Stringent control over trace elements and impurities is maintained
to meet international quality standards, ensuring the product's reliability and safety.
Understanding the quality details and adherence to international standards is crucial to guarantee
the reliability and performance of sodium silicate in various industrial applications on a global
scale.