Description
Specifications Table
Product Name – Indicator paper, pH 1 – 14 Indicator
Quantity/Pack Size – 10 books
Form – Paper strips
Grade – Laboratory grade
Application – pH testing (1-14 range), qualitative analysis
Product Overview
The pH 1-14 indicator paper is a versatile, lab-grade testing tool designed for rapid and accurate acid-alkali detection across the full pH spectrum. Each strip undergoes precise calibration to ensure reliable color transitions corresponding to pH levels from 1 (highly acidic) to 14 (highly alkaline), with intermediate shades for granular identification. The paper’s porous cellulose matrix is impregnated with a proprietary blend of synthetic indicators that react instantaneously upon contact with liquid samples, eliminating the need for electronic meters in routine screening. The non-bleeding dye formulation prevents cross-contamination between tests, while the neutral pH of the base paper ensures unbiased results. Packaged in a moisture-resistant book format, the strips remain stable under standard lab conditions (15–30°C) with a shelf life of 24 months from manufacture when stored unopened. The compact book design allows for single-strip dispensing, reducing waste and enabling high-throughput testing. Compatible with aqueous solutions, the indicator paper is insensitive to common interferents like chloride or sulfate ions, though highly colored or turbid samples may require pretreatment for optimal accuracy.
FAQs
1. How quickly does the indicator paper show results after dipping?
The color change is visible within 1–2 seconds of contact with the test solution, with full stabilization occurring in under 10 seconds for most samples.
2. Can this paper test non-aqueous liquids like oils or solvents?
The indicator is optimized for aqueous solutions. Non-polar solvents may not wick properly, leading to inaccurate or delayed color development.
3. What’s the smallest pH increment this paper can distinguish?
The strips provide whole-number pH resolution (e.g., pH 5 vs. pH 6), though intermediate shades may suggest half-unit differences under ideal lighting conditions.
4. Does humidity affect the paper’s performance during storage?
Prolonged exposure to humidity (>60% RH) can degrade the indicators. Store the unopened book in a desiccated container if used in tropical climates.
5. Are there alternatives for testing highly buffered solutions?
For buffered systems (e.g., biological media), consider pH meters or indicator solutions with narrower ranges (e.g., pH 6–8) for enhanced precision.
