The difference between etrakis hydroxymethyl phosphonium sulfate(THPS) and glutaraldehyde

The difference between Tetrakis hydroxymethyl phosphonium sulfate（THPS) CAS:55566-30-8 and glutaraldehyde in oilfield applications is mainly reflected in the following aspects:

1. Chemical properties

-THPS: organophosphorus compounds with strong reduction, can effectively kill sulfate reducing bacteria (SRB) and inhibit the formation of H2S.

-Glutaraldehyde: organic aldehydes, through the cross linking of amino groups in proteins, broad spectrum and high efficiency.

2. The bactericidal effect

-THPS: it is effective on SRB and is suitable for H2S heavily polluted environment.

-Glutaraldehyde: broad-spectrum sterilization, effective for a variety of bacteria, fungi and algae, suitable for a variety of microbial contamination.

3. Environmental impact

-THPS: easy to degradation, less environmental residues, and low ecological toxicity.

-Glutaraldehyde: slow degradation, long residual time, pay attention to the concentration.

4. Application scenarios

-THPS: Often used for oilfield water injection systems and pipelines in H2S pollution.

-Glutaraldehyde: suitable for a variety of oil field water treatment systems, especially in the complex microbial pollution environment.

5. Safety

-THPS: irritating to the skin and eyes, it should be protected.

-Glutaraldehyde: with strong irritation, requiring strict protection when used.

Sum up

-THPS: suitable for H2S heavily polluted environment, environmentally friendly.

-Glutaraldehyde: broad-spectrum sterilization, low price, but slow degradation, need to pay attention to the Cproblem.

The selection should be determined according to the specific requirements and environmental conditions.