saturation index

USAGE SUMMARY

"saturation index" is a correct and usable phrase in written English.
The saturation index of the company's growth was impressive.

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Saturated minerals have saturation index (= log IAP/Ksp) >0.

Geochemical Transactions

A simple measure of the extent to which FRQ degradation is saturated is provided by the corresponding saturation index, with values close to 1 indicating strong saturation [ 51].

BMC Systems Biology

A neutral saturation index (SI = 0) means the water sample is saturated by minerals and in equilibrium with the solids.

Applied Water Science

The light saturation index is a proxy for the irradiance that is needed to saturate photosynthesis, i.e. the threshold irradiance that separates light-limited and light-saturated photosynthesis.

Plosone

Saturation index (S.I).

Applied Water Science

Ω the carbonate saturation index.

Progress in Earth and Planetary Science

Saturation index is defined as: (5).

Geochemical Transactions

Mineral saturation index (SI) Min Max Mean Std.

Applied Water Science

Non-equilibrium feed saturation index (SI) was varied from 0.8 to 1.4.

Chemical Engineering Journal

We then calculated the δ13CDIC value and calcite saturation index of the mixed waters.

Progress in Earth and Planetary Science

By using the saturation index (SI), it is possible to predict the reactive mineralogy (Deutsch 1997).

Applied Water Science

Expert writing Tips

Best practice

Always define the specific type of "saturation index" being used (e.g., Langelier Saturation Index, oxygen saturation index) to avoid ambiguity.

Common error

Avoid using "saturation index" as a direct synonym for "saturation". The "saturation index" is a calculated value that indicates the degree of saturation, not the state itself. For example, instead of saying "the saturation index was high", say "the saturation index indicated supersaturation".

Linguistic Context

The phrase "saturation index" functions as a noun phrase, typically used as a subject or object in scientific and technical writing. It refers to a calculated value indicating the thermodynamic stability of a mineral in a solution, as shown in Ludwig's examples.

Expression frequency: Very common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, "saturation index" is a well-established term, primarily used in scientific contexts to quantify the saturation state of minerals in solutions. Ludwig AI confirms its grammatical correctness and frequent usage in scientific literature. To ensure clarity, always specify the type of index being referenced (e.g., Langelier Saturation Index) and avoid using it interchangeably with "saturation" itself. By following these guidelines, you can effectively use "saturation index" in your scientific and technical writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

index of saturation

Inverts the word order, emphasizing "index" as a measurement.

SI value

Abbreviates "saturation index" to its common abbreviation.

degree of saturation

Highlights the extent to which something is saturated.

level of saturation

Similar to "saturation level" but with a slightly different word order.

saturation level

Focuses on the degree of saturation rather than the calculated indicator.

saturation state

Refers to the condition of being saturated.

saturation point

Emphasizes the threshold at which saturation occurs.

saturation ratio

Implies a ratio-based measure of saturation.

mineral saturation

Specifies saturation related to mineral context.

carbonate saturation

Focuses on the saturation of carbonate compounds.

FAQs

What does "saturation index" mean in the context of water chemistry?

In water chemistry, the "saturation index" indicates whether a water sample is under-saturated, saturated, or supersaturated with respect to a particular mineral. A saturation index of zero indicates equilibrium, while positive and negative values indicate supersaturation and undersaturation, respectively.

How is the "saturation index" calculated?

The saturation index (SI) is calculated using the formula: SI = log(IAP/Ksp), where IAP is the ion activity product and Ksp is the solubility product of the solid phase. This calculation determines the thermodynamic stability of a mineral in a solution.

What is the significance of a negative "saturation index"?

A negative "saturation index" indicates that the solution is under-saturated with respect to a particular mineral. This means that the mineral has a tendency to dissolve in the solution, as the solution can accommodate more of the mineral's ions before reaching equilibrium.

What are some alternatives to using the phrase "saturation index"?

Depending on the context, you might use alternatives like "degree of saturation", "saturation level", or "saturation state". However, "saturation index" specifically refers to the calculated indicator of saturation.