MUST INQUIRE! Universal Indicator
Product#: HM-I013
$199.79
Availability:
Ships In 4-6 Weeks
**CUSTOMIZED BULK ORDER ONLY !
*SHIPPING LEAD TIME 3 Months
** List price is for 2 ea 500ml bottles , Do not Sell 1 bottle.
Universal Indicator
Diagnocine Discount Program item* - see the below (click here) Cat.No.(by size): HM-I013_500ml
*Special Bonus: Pasteur Pipettes are served per each order.
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Intended Use:
Universal indicator is used as pH indicator with a wide range from 4-14. It is used to determine pH of various solutions, and substances.
| Ingredients | |
| Thymol blue | 0.026gm |
| Methyl red | 0.060gm |
| Bromothymol blue | 0.30gm |
| Phenolphthalein | 0.50gm |
| Ehtanol | 500ml |
Note:Add dilute NaOH until solution turns green(neutral pH).
**Formula adjusted, standardized to suit performance parameters
Directions
Use 0.2ml of indicator for every 10ml of the liquid under examination.
Principle And Interpretation
Universal indicator is a mixture of dyes that changes colour gradually over a range of pH from 4-14. The colour is used to indicate pH directly (1). The main components of a Universal indicator, in the form of a solution, are thymol blue, methyl red, bromothymol blue and phenolphthalein. This mixture is important because, each component, loses or gains electrons depending upon the acidity or basicity of the solution being tested. It is beneficial to use this type of universal indicator in a colourless solution. This will increase the accuracy of indication (2). The indicator is used to determine the acidity or alkalinity of various substances such as soil, sewage, sludge, food etc. Solutions and liquids such as water, waste water, etc. Universal indicator is used more than other indicators because it has a wide range of results.
Warning and Precautions
In Vitro diagnostic use only. Read the label before opening the container. Wear protective gloves/protective clothing/eye protection/face protection. Follow good microbiological lab practices while handling specimens and culture. Standard precautions as per established guidelines should be followed while handling clinical specimens. Safety guidelines may be referred to in individual safety data sheets.
Performance and Evaluation
Performance of the product is expected when used as per the direction on the label within the expiry period when stored at the recommended temperature
Quality Control
Appearance
Greenish brown coloured solution.
Clarity
Clear, without any particles.
Test
Add 0.2 ml of indicator in 10 ml of liquid having different pH ranges, and observe colour variation as per the standard chart.
Results
At various pH levels, different colours are seen which are compared with the standard indicator chart.
Storage and Shelf Life
Store between 10- 30°C in a tightly closed container and away from bright light. Use before the expiry date on the label. On opening, the product should be properly stored in a dry ventilated area protected from extremes of temperature and sources of ignition. Seal the container tightly after use.
Disposal
Users must ensure safe disposal by autoclaving and/or incineration of used or unusable preparations of this product. Follow established laboratory procedures in disposing of infectious materials and material that comes into contact with clinical samples must be decontaminated and disposed of in accordance with current laboratory techniques (3,4).
Reference
1. Jap. Pat. 99,664, Feb21,1933
2. Chemistry info lab reagents and resources; The preparation of titration indicators; Dhanal De Lloyd, chem.Dept.Disposal
3. Isenberg, H.D. Clinical Microbiology Procedures Handbook. 2nd Edition.
4. Jorgensen,J.H., Pfaller , M.A., Carroll, K.C., Funke, G., Landry, M.L., Richter, S.S and Warnock., D.W. (2015) Manual
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Diagnocine Discount Program* for Pre-K to 12, Homeschool, and College/University Students, or Parents Actively Engaged in "Children's Education", We offer a discount program tailored to Pre-K to 12, homeschool, and college/university students, as well as parents who take an active role in their children's education. Upon purchasing the Universal Indicator, kindly specify in the "Comments" field the number of students utilizing the Universal Indicator in the classroom.
In appreciation, we will send complimentary gifts to nurture the future generation of young scientists. Gift options include Pasteur pipettes (droppers), PCR plates (6-well cell culture plates), pH 7.4 ultrapure water Type 1 (control solution), gloves, and more.
At Diagnocine, we are committed to supporting young scientists in shaping our future.
