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Hanna Instruments HI93751 Sulfate Reagents, 100 or 300 Tests Sulfate Reagents Hanna Instruments
Hanna Instruments HI93751 Sulfate Reagents, 100 or 300 Tests Sulfate Reagents Hanna Instruments

Hanna Instruments HI93751 Sulfate Reagents, 100 or 300 Tests

$69.29

    Keep your HI97751 ready for routine sulfate testing. Choose genuine Hanna pre-measured reagents for 100 or 300 water-sample tests, with packet-level lot and expiration traceability.

    • HI93751-01: 100 tests; HI93751-03: 300 tests
    • Verified for HI97751: 0–150 mg/L as sulfate
    • Reagents only; meter and CAL Check standards sold separately

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Keep your HI97751 ready for the next sulfate sample

Choose Hanna Instruments HI93751-01 for 100 sulfate tests or HI93751-03 for 300 tests. Both supply the pre-measured reagent used by the HI97751 portable photometer, so you can replenish routine water-testing supplies without changing the method. The photometer, cuvettes and CAL Check standards are sold separately.

Each test uses one packet of HI93751-0 reagent. High-purity chemicals and factory-measured doses simplify preparation, while the lot number and expiration date printed on each packet support traceable testing.

Hanna Instruments pre-measured reagent packets, manufacturer reference image
Manufacturer reference image. Packet appearance and printed dates are illustrative, not the expiration date of supplied stock.

A matched reaction for photometric sulfate measurement

The barium chloride reagent reacts with sulfate to form a suspension. A compatible Hanna photometer measures the suspension's light absorbance and reports sulfate concentration in mg/L, equivalent to ppm. On the HI97751, the method covers 0 to 150 mg/L as sulfate. Hanna specifies 0 to 100 mg/L for its compatible benchtop photometer methods; follow the procedure and range for your exact instrument.

A straightforward HI97751 sample workflow

Zero the HI97751 with 10 mL of untreated sample in a clean cuvette. Add one packet of HI93751-0, close the cuvette and gently invert for one minute, approximately 30 inversions. Then follow the meter's five-minute reaction countdown before reading. The downloadable HI97751 manual provides the complete method, interference information and handling instructions.

Keep the outside of the cuvette clean and dry, avoid bubbles and follow the specified reaction time. Review the Safety Data Sheet before use and arrange appropriate disposal of reagents and reacted samples.

Order the test count that fits your workload

HI93751-01 provides enough reagent for 100 tests. HI93751-03 provides enough for 300 tests using the same sulfate method. Select the pack by anticipated sample volume and the expiration dates on the supplied packets; changing pack size does not extend the meter's measurement range.

Compatible instrument: Hanna HI97751 sulfate photometer. Both reagent packs are explicitly listed in its instruction manual and work with the meter supplied in the HI97751C kit.

Frequently Asked Questions

Are HI93751-01 and HI93751-03 compatible with the HI97751 meter?

Yes. Hanna lists both HI93751-01 (100 tests) and HI93751-03 (300 tests) in the HI97751 instruction manual. They also suit the HI97751 meter supplied in the HI97751C kit.

What is the difference between HI93751-01 and HI93751-03?

The test count: HI93751-01 supplies reagent for 100 tests and HI93751-03 supplies reagent for 300 tests. Both use HI93751-0 sulfate reagent, with one packet required per HI97751 test.

What sulfate range can I measure with these reagents?

The HI97751 method measures 0 to 150 mg/L as sulfate. Hanna specifies 0 to 100 mg/L for compatible benchtop photometer methods. Use the range and procedure stated for your exact meter; the reagent pack does not change the instrument range.

How much sample and reagent does the HI97751 test require?

Use 10 mL of untreated sample to zero the HI97751, then add one packet of HI93751-0 sulfate reagent. Follow the complete instrument method, including its mixing and reaction times.

How long should the sulfate sample react before reading?

For the HI97751 procedure, gently invert the cuvette for one minute, about 30 inversions, after adding the reagent. Then use the five-minute countdown before measurement. Follow the manual for the complete sequence and temperature guidance.

Are these reagents the same as HI97751-11 CAL Check standards?

No. HI93751-01 and HI93751-03 react with water samples to determine sulfate. HI97751-11 is a separate CAL Check standards kit used to verify the photometer, not a substitute for these sample reagents.

Do the reagent packs include a photometer or cuvettes?

No. These options are reagent replenishment packs for 100 or 300 tests. The compatible photometer, cuvettes, caps and CAL Check standards are separate products.

How do I check reagent traceability and safe handling?

Check the lot number and expiration date printed on each packet of HI93751-0. Review the linked Safety Data Sheet before handling, follow the instrument method and arrange appropriate disposal. Do not infer the supplied lot or expiration date from the illustrative product photograph.

    Product Specifications

    SpecificationDetail
    BrandHanna Instruments
    ParameterSulfate (SO₄²⁻)
    Catalog numbersHI93751-01; HI93751-03
    Reagent formatPre-measured packets
    MethodSulfate is precipitated with barium chloride crystals. Light absorbance of the suspension is measured.
    Compatible portable instrumentHI97751 sulfate photometer, including the meter in HI97751C kits
    HI97751 method range0 to 150 mg/L (ppm) as sulfate
    Compatible benchtop method range0 to 100 mg/L (ppm) as sulfate; confirm exact instrument method
    Reagent per HI97751 testOne packet of HI93751-0
    Sample volume for HI9775110 mL
    TraceabilityLot number and expiration date on each packet

    Ordering Information

    SpecificationDetail
    HI93751-01Sulfate reagents, enough for 100 tests
    HI93751-03Sulfate reagents, enough for 300 tests
    IncludedReagent pack only; instrument, cuvettes and CAL Check standards not included

    Shipping, Return, and Warranty Policy

    At Blue Tiger Scientific, we are proud to distribute authentic Hanna Instruments products. The following policies apply to all purchases made through our store.

    Shipping Policy

    • All orders are shipped via FedEx from Hanna Instruments' fulfillment center in Smithfield, Rhode Island.
    • FedEx Ground is the standard method; expedited options (2-Day, Overnight) are available for an additional cost.
    • Hanna Instruments only ships to residential or business addresses within the United States (no PO Boxes).
    • Orders placed after business hours, weekends, or holidays will ship the next business day, pending product and carrier availability.
    • Shipping timelines may vary depending on product availability, order size, and carrier logistics.
    • Blue Tiger Scientific and Hanna Instruments are not responsible for carrier delays, weather-related disruptions, or other unforeseen delivery issues once the order has shipped.

    Return Policy

    • All return requests must be coordinated directly with Blue Tiger Scientific before a product is sent back.
    • Products must have a Return Merchandise Authorization (RMA) number issued by Blue Tiger Scientific before being returned.
    • Products must be returned in new or like-new condition, with the original packaging and proof of purchase (such as an invoice or packing slip).
      Customers are responsible for return shipping costs unless otherwise stated.
    • Unauthorized returns (without an RMA) will be refused and returned at the customer's expense.
      Returns are subject to inspection and approval. Products not in acceptable condition may be denied credit.
    • Some products, such as custom-built, special order, and hazardous materials, may not be eligible for return.

    Warranty Policy

    • Hanna Instruments' products are covered by their Limited Warranty against defects in materials and workmanship under normal use.
    • All warranty claims and services are handled directly by Hanna Instruments.
    • Warranty periods vary by product. If unspecified, the standard warranty term is 18 months from the Hanna Instruments factory ship date.
    • If you experience an issue believed to be covered under warranty, please contact Hanna Instruments for guidance on how to submit your warranty request to Hanna Instruments.
    • Customers must follow Hanna Instruments' warranty submission process, including providing a claim number, product model and serial number, and a detailed description of the issue.
    • Hanna Instruments will determine whether products are repaired, replaced, or otherwise serviced under warranty.
    • Note: Warranty coverage does not apply to damage caused by misuse, accidents, unauthorized repairs, or improper storage and handling.

    Important Notes

    • Some Hanna Instruments products are custom-made or built to order. Shipping will occur once the product is ready.
    • In the event of backorders, you may request partial shipments.
    • Delays beyond our control (e.g., material shortages, import delays, or carrier issues) may occasionally occur.

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