Cooling — Process Challenge

冷却水用防食剤(鋼および銅合金)

冷却システムは炭素鋼と黄色金属(銅/黄銅/アドミラルティ)部材を混在させる;酸素含有循環水は鋼を腐食し、銅を脱亜鉛・点食する。設計では鋼用に陽極性阻害剤および陰極性阻害剤を、銅用に黄色金属アゾールを併用
Updated Jun 2026
ソリューションアプローチ

RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Treatment Workflow
1
Water & System Assessment
Characterize the water and the system — hardness, alkalinity, pH, TDS/conductivity, microbial load, and the metallurgy and temperatures of the equipment being protected.
2
Program & Chemistry Selection
Match coagulants, flocculants, scale and corrosion inhibitors, biocides, or pH adjusters to the water profile and discharge limits, factoring compatibility with any existing program.
3
Jar Testing & Dosing
Confirm coagulant and flocculant dose and feed point by jar test, set inhibitor and biocide treat rates, and size packaging (drums, totes, bulk) to consumption.
4
Monitoring & Control
Track residuals, turbidity, ORP, corrosion coupons, and effluent compliance, adjusting chemistry and dose as feedwater and load change.
Recommended Chemistries (5)
モリブデン酸ナトリウム
CAS 7631-95-0
特殊添加剤
Molybdate corrosion inhibitor
Anodic passivator for mild steel; molybdate reinforces the protective gamma-Fe2O3 oxide film and is far less toxic than chromate, working synergistically with zinc
Physical Description: White solid; Colorless crystalline solid   融点:687 °C   Solubility: Solubility in water, g/100ml at 100 °C: 84
クイックビュー
詳細情報
Zinc Nitrate
CAS 7779-88-6
特殊添加剤
コンディショニング
1514 (ZINC NITRATE) · Class
Cathodic inhibitor; Zn2+ precipitates as Zn(OH)2 at cathodic sites, throttling the oxygen-reduction reaction that drives steel corrosion
Physical Description: Zinc nitrate is a colorless crystalline solid. …   Appearance: White powder   融点:36 °C
クイックビュー
詳細情報
Tolyltriazole (TTA / Methylbenzotriazole)
CAS 29385-43-1
特殊添加剤
Yellow metal protection
Tolyltriazole chemisorbs a Cu-TTA film on copper/brass, stopping dissolution and dezincification; more chlorine-tolerant than benzotriazole
クイックビュー
詳細情報
Benzotriazole (BTA)
CAS 95-14-7
特殊添加剤
Copper corrosion inhibitor
Benzotriazole forms a tenacious Cu-BTA chelate film that passivates yellow metals and suppresses galvanic copper plating onto steel. (Spine tags Biocidal; the role here is copper corrosion inhibition.)
融点:98–100 °C   沸点:204 °C at 15 mmHg   密度:1.36 g/cu cm at 20 °C
クイックビュー
詳細情報
2-Mercaptobenzothiazole (MBT)
CAS 149-30-4
特殊添加剤
防食
2811 (2-MERCAPTOBENZOTHIAZOLE) · Class
Thiol-bearing azole gives fast initial copper passivation and is often paired with TTA for rapid film establishment on fresh metal
融点:177–181 °C   沸点:Decomposes   密度:1.42 at 20 °C
クイックビュー
詳細情報

適切な化学品の選択にお困りですか?

当社のチームは、グレード選定、配合量のご案内、複数原産地調達についてお手伝いできます。

見積り依頼 All Water Treatment Problems
見積り依頼

製品カタログ →