Products

Suppliers
Filter Gallery
233,768

Chemicals For Water Treatment

Products
Water Treatment Disinfect Effervescent Tablet Water Bowl Trough Pvc Float

Sorry! No matches were found.

CAS 1327-41-9 PAC Aluminium Chlorohydrate Poly-Aluminum Chloride Water Treatment Chemical

CAS 1327-41-9 PAC Aluminium Chlorohydrate Poly-Aluminum Chloride Water Treatment Chemical

US $ 150-300 / Ton FOB
1 Ton (MOQ)
More
Main Products: water treatment chemical
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hunan Fortune Technology Co., LTD.

Manufacturer/Factory

Hunan, China Since 2024
Chat Now Send Inquiry
Water Treatment Chemical Sodium Chlorite

Water Treatment Chemical Sodium Chlorite

US $ 700 / Ton FOB
1 Ton (MOQ)
More
Grade Standard : Industrial Grade
Contact Supplier
Audited Supplier Audited Supplier Since 2013
Unibrom Corp.

Manufacturer/Factory,Trading Company

Shandong, China Since 2013
Chat Now Send Inquiry
Detpmp/Dtpmp/Water Treatment Chemicals/CAS No. 15827-60-8/Phosphonates

Detpmp/Dtpmp/Water Treatment Chemicals/CAS No. 15827-60-8/Phosphonates

US $ 1,360-1,460 / Ton FOB
1 Ton (MOQ)
More
Main Products: Chemical Product, Pharmaceutical Raw Materials, Pharmaceutical Intermediates, Steroids, Non-Steroids, Water Treatment Chemicals, Organic Phosphoric Acid, Biocide, Polymer, Fine Chemicals
Contact Supplier
Audited Supplier Audited Supplier Since 2009
Changzhou Koye Chemical Co., Ltd.

Manufacturer/Factory,Group Corporation

Jiangsu, China Since 2009
Chat Now Send Inquiry
26% Sodium Chlorite Liq CAS7758-19-2 1250K IBC Packing Water Treatment Chemical

26% Sodium Chlorite Liq CAS7758-19-2 1250K IBC Packing Water Treatment Chemical

US $ 550-590 / Ton FOB
25 Tons (MOQ)
More
Certification : REACH
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Gaomi Fuyihe Chem Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2023
Chat Now Send Inquiry
(Factory Direct Supply) Aluminium Sulphate 17-18% Aluminum Sulfate/Al2 (SO4) 3 Water Treatment Chemical

(Factory Direct Supply) Aluminium Sulphate 17-18% Aluminum Sulfate/Al2 (SO4) 3 Water Treatment Chemical

US $ 120-200 / Ton FOB
28 Tons (MOQ)
More
Main Products: Alumina Ceramic, Zirconia Ceramic, Carbon Black, Sodium Bicarbonate, Soda Ash, Polyaluminium Chloride, Water Treatment Chemical, Aluminium Sulphate, Sodium Metabisulphite, Hydrated Lime
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Yantai Wenxu Industrial Co., Ltd.

Manufacturer/Factory

Shandong, China Since 2019
Chat Now Send Inquiry
Water Treatment High Quality of Pearls 99% Caustic Soda/Sodium Hydroxide Printing Dyeing/Medicine/Metallurgy/Chemical Fiber/Electroplating From China Supplier

Water Treatment High Quality of Pearls 99% Caustic Soda/Sodium Hydroxide Printing Dyeing/Medicine/Metallurgy/Chemical Fiber/Electroplating From China Supplier

US $ 450-530 / Ton FOB
27 Tons (MOQ)
More
Grade Standard : Industrial Grade
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Qingdao Fangjinlong Technology Development Co., Ltd.

Manufacturer/Factory,Group Corporation

Shandong, China Since 2023
Chat Now Send Inquiry
Ferrous Sulfate Heptahydrate Monohydrate Ferrous Sulphate Water Treatment Chemicals

Ferrous Sulfate Heptahydrate Monohydrate Ferrous Sulphate Water Treatment Chemicals

US $ 60 / Ton FOB
27 Tons (MOQ)
More
Main Products: Aluminium Sulfate, Ferrous Sulfate, Polyaluminium Chloride(PAC), Melamine, Adipic Acid, CPE 135A, PVC Sg-5 Resin, HEDP, Petroleum Resin, Ammonium Bicarbonate
Contact Supplier
Audited Supplier Audited Supplier Since 2020
Shandong Yili-Spring Chemical Industry Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2020
Chat Now Send Inquiry
Swimming Pool Water Treatment Chemicals

Swimming Pool Water Treatment Chemicals

1 Ton (MOQ)
More
Acid-Base Property : Neutral Surface Disposal Agent
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Qingdao Hot Chemicals Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2015
Chat Now Send Inquiry
Swimming Pool Water Treatment Chemicals

Swimming Pool Water Treatment Chemicals

US $ 1,200-1,500 / Ton FOB
21 Tons (MOQ)
More
Main Products: SDIC, Bcdmh, Potassium Monopersulphate, Algaecide, Flocculant, Paraffin Wax, Sodium Erythorbate, Swimming Pool Chemical
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Aqua Chem Industry Co., Limited

Trading Company

Jiangsu, China Since 2017
Chat Now Send Inquiry
Customized Water Treatment Chemicals for Swimming Pool Use

Customized Water Treatment Chemicals for Swimming Pool Use

1 Ton (MOQ)
More
Environmental Protection : Yes
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Qingdao Hot Chemicals Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2015
Chat Now Send Inquiry
Lotus Brand Water Treatment Chemicals for Potable&Waste Water Purification

Lotus Brand Water Treatment Chemicals for Potable&Waste Water Purification

20 Tons (MOQ)
More
Main Products: Aluminum Sulfate, Water Treatment Agent, Polymeric Sulfate, Alum, Poly Aluminum Chloride, PAC
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Hengyang Jianheng Industry Development Co., Ltd.

Manufacturer/Factory

Hunan, China Since 2022
Chat Now Send Inquiry
Polyaluminium Chloride as Drinking Water Treatment Chemical

Polyaluminium Chloride as Drinking Water Treatment Chemical

US $ 470-480 / Ton FOB
5 Tons (MOQ)
More
Color : White
Contact Supplier
Audited Supplier Audited Supplier Since 2007
Yixing Bluwat Chemicals Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2007
Chat Now Send Inquiry
Chemical Auxiliary Water Treatment Chemical Organic Intermediate Chemical Reagent Coal Active Carbon Coconut Shell Activated Carbon
SDIC 56% 3.3G Sodium Dichloroisocyanurate SDIC CAS No. 2893-78-9 Water Treatment Chemical

SDIC 56% 3.3G Sodium Dichloroisocyanurate SDIC CAS No. 2893-78-9 Water Treatment Chemical

US $ 1,400-1,450 / Ton FOB
10 Tons (MOQ)
More
Main Products: TCCA, SDIC, Bcdmh, PAC, PAM
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Qingdao Thor Industrial Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2022
Chat Now Send Inquiry
Light Green Crystal/ Powder Water Treatment Chemical Ferrous Sulfate/ Ferrous Sulphate Heptahydrate

Light Green Crystal/ Powder Water Treatment Chemical Ferrous Sulfate/ Ferrous Sulphate Heptahydrate

US $ 70 / Ton FOB
27 Tons (MOQ)
More
Appearance : Powder
Contact Supplier
Audited Supplier Audited Supplier Since 2020
Shandong Yili-Spring Chemical Industry Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2020
Chat Now Send Inquiry
Polyacrylamide Apam /CPAM Water Treatment Chemical

Polyacrylamide Apam /CPAM Water Treatment Chemical

US $ 1,580-3,412 / Ton FOB
1 Ton (MOQ)
More
Main Products: Abrasive (Wfa Bfa Silicon Carbide Garnet etc. ), Refractory Material (Bauxite Alumina Powder ), Activated Carbon, PAM PAC
Contact Supplier
Audited Supplier Audited Supplier Since 2018
Gongyi Fengtai Refractory Abrasive Co., Ltd.

Manufacturer/Factory,Trading Company

Henan, China Since 2018
Chat Now Send Inquiry
Tethmp Industrial Water Treatment Chemical Electroplating Industry Corrosion Inhibitor

Tethmp Industrial Water Treatment Chemical Electroplating Industry Corrosion Inhibitor

US $ 500-1,200 / Ton FOB
1 Ton (MOQ)
More
Acid-Base Property : Neutral Surface Disposal Agent
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hunan Fortune Technology Co., LTD.

Manufacturer/Factory

Hunan, China Since 2024
Chat Now Send Inquiry
Chemical PAC 30% for Waste Water Treatment

Chemical PAC 30% for Waste Water Treatment

US $ 0.1-1 / kg FOB
1 kg (MOQ)
More
Main Products: Water Decoloring Agent, Sodium Polyacrylate, Sizing Agent, Poly Dadmac, Polyamine, Dispersing Agent, Water Treatment Chemical, PAM-Polyacrylamide, PAC Polyaluminum Chloride, Defoamer
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Realfine Chemical (Wuxi) Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2021
Chat Now Send Inquiry
EDTA 4na as a Chemical for Water Treatment

EDTA 4na as a Chemical for Water Treatment

US $ 1,150-2,000 / Ton FOB
1 Ton (MOQ)
More
Carboxyl No. : Dicarboxylic Acid
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Henan Honghai Chemical Co., Ltd.

Manufacturer/Factory

Henan, China Since 2024
Chat Now Send Inquiry
Water Treatment Equipment Reverse Osmosis Purifier Plant RO System Price Chemical Industry for Borehole Boiler Water

Water Treatment Equipment Reverse Osmosis Purifier Plant RO System Price Chemical Industry for Borehole Boiler Water

US $ 20,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: RO Water Treatment Plant/System, Stainless Steel Water Tank, Sea Water Desalination Plant, Mechanical Filter Housing/Vessel, Cartridge Filter Housing/Vessel, Bag Filter Housing/Vessel, Brackish Water RO System, UV Sterilizer, Ozone Generator, UF System
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Guangzhou Chunke Environmental Technology Co., Ltd.

Guangdong, China Since 2014
Chat Now Send Inquiry
3500m3 Chemical Waste Water Sewage Water Treatment Storage Tank

3500m3 Chemical Waste Water Sewage Water Treatment Storage Tank

US $ 43,370-160,630 / Set FOB
1 Set (MOQ)
More
Usage : Industrial, Agriculture
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Qingdao Rely Environmental Technology Co., Ltd

Manufacturer/Factory

Shandong, China Since 2023
Chat Now Send Inquiry
Related Videos
  • What is CAS 1327-41-9 PAC Aluminium Chlorohydrate Poly-Aluminum Chloride Water Treatment Chemical
    What is CAS 1327-41-9 PAC Aluminium Chlorohydrate Poly-Aluminum Chloride Water Treatment Chemical
    Negotiable
    1 Ton (MOQ)
    Contact Supplier
  • What is Water Treatment Chemical Sodium Chlorite
    What is Water Treatment Chemical Sodium Chlorite
    Negotiable
    1 Ton (MOQ)
    Contact Supplier
  • What is Detpmp/Dtpmp/Water Treatment Chemicals/CAS No. 15827-60-8/Phosphonates
    What is Detpmp/Dtpmp/Water Treatment Chemicals/CAS No. 15827-60-8/Phosphonates
    Negotiable
    1 Ton (MOQ)
    Contact Supplier
  • What is 26% Sodium Chlorite Liq CAS7758-19-2 1250K IBC Packing Water Treatment Chemical
    What is 26% Sodium Chlorite Liq CAS7758-19-2 1250K IBC Packing Water Treatment Chemical
    Negotiable
    25 Tons (MOQ)
    Contact Supplier
99 Percent Chlorine Tablets Swimming Pool Water Treatment Chemicals

99 Percent Chlorine Tablets Swimming Pool Water Treatment Chemicals

US $ 1,099-1,599 / Piece FOB
1 Piece (MOQ)
More
Main Products: TCCA, Pool Cleaner, Swimming Pool Disinfectant, Water Treatment Agent, SDIC, Chemical Dispenser, pH Plus and Reducer, Pool Cleaning Agents
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Shandong Qc Industry Co., Ltd.

Trading Company

Shandong, China Since 2022
Chat Now Send Inquiry
Best Price Granular Powder Flocculant Water Treatment Oil Well Drilling Apam Anionic Polyacrylamide PAM Chemical

Best Price Granular Powder Flocculant Water Treatment Oil Well Drilling Apam Anionic Polyacrylamide PAM Chemical

US $ 1,650-2,100 / Ton FOB
1 Ton (MOQ)
More
Appearance : Powder
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Henan Lvyuan Water Treatment Technology Co., Ltd.

Manufacturer/Factory

Henan, China Since 2019
Chat Now Send Inquiry
Trichloroisocyanuric Acid TCCA/Factory Price/Water Treatment Chemical

Trichloroisocyanuric Acid TCCA/Factory Price/Water Treatment Chemical

US $ 1,000-1,300 / Ton FOB
1 Ton (MOQ)
More
Main Products: Poly Aluminium Chloride(PAC), Polyacrylamide(PAM), Citric Acid, Caicium Chloride, Aluminum Sulfate, Soda Ash, Sodium Bicarbonate, Trichloroisocyanuric Acid(TCCA), Caustic Soda
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Shandong Yankem Industry Co., Ltd

Manufacturer/Factory

Shandong, China Since 2022
Chat Now Send Inquiry
Manufacturer Polyaluminium Chloride /Polyaluminum Chloride PAC 30% Water Treatment Chemicals

Manufacturer Polyaluminium Chloride /Polyaluminum Chloride PAC 30% Water Treatment Chemicals

US $ 120-180 / Ton FOB
1 Ton (MOQ)
More
Appearance : Powder
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hebei Chemtics Technology Co. Ltd

Manufacturer/Factory,Trading Company

Hebei, China Since 2024
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

Flocculant Polyacrylamide PAM Water Treatment Chemical

Flocculant Polyacrylamide PAM Water Treatment Chemical

US $ 0.99-2.2 / Ton FOB
1 Ton (MOQ)
More
Main Products: Aluminium Dihydrogen Phosphate, Sodium Hexametaphosphate(SHMP), Sodium Tripolyphosphate (STPP), 85% Phosphoric Acid, Tetrasodium Pyrophosphate(Tspp), Trisodium Phosphate(Tsp), Disodium Hydrogen Phosphate(DSP), Sodium Dihydrogen Phosphate(Msp), Polyaluminium Chloride(PAC), Polyacrylamide(PAM)
Contact Supplier
Audited Supplier Audited Supplier Since 2020
HENAN YULIN CHEMICAL CO., LTD.

Manufacturer/Factory

Henan, China Since 2020
Chat Now Send Inquiry
High Quality Sodium-Dichloroisocyanurate 60% SDIC Water Treatment Chemicals

High Quality Sodium-Dichloroisocyanurate 60% SDIC Water Treatment Chemicals

US $ 750-1,000 / Ton FOB
5 Tons (MOQ)
More
Type : Industrial Circulating Water Treatment Agent
Contact Supplier
Since 2024
Zhengzhou Langkou Chemical Products Co., Ltd

Manufacturer/Factory,Trading Company

Henan, China Since 2024
Chat Now Send Inquiry
Water Treatment Chemical Chelated Iron Six IDS-Fe

Water Treatment Chemical Chelated Iron Six IDS-Fe

US $ 1.05-1.5 / kg FOB
1,000 kg (MOQ)
More
Main Products: Pharmaceutical Intermediate, Organic Intermediate, Food Additive, Cosmetic Raw Material, API
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shandong Richnow Chemical Co., Ltd.

Manufacturer/Factory

Shandong, China Since 2023
Chat Now Send Inquiry
CAS 2809-21-4 Etidronic Acid HEDP 60% - Quality Chemical for Water Treatment

CAS 2809-21-4 Etidronic Acid HEDP 60% - Quality Chemical for Water Treatment

US $ 2-10 / kg FOB
5 kg (MOQ)
More
Color : Colorless
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Chuanghai Biotechnology Co., Ltd.

Manufacturer/Factory

Hebei, China Since 2024
Chat Now Send Inquiry
Fast Delivery Polyacrylamide PAM/PHPA as Oil Field and Water Treatment Chemicals

Fast Delivery Polyacrylamide PAM/PHPA as Oil Field and Water Treatment Chemicals

10 Tons (MOQ)
More
Main Products: Chemical, Agriculture Film, Fertilizer, Water Treatment Products, Feed Additives
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Feidoodoo Cross-border E-Commerce(Jinan) Co. Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2023
Chat Now Send Inquiry
Water Treatment Chemicals 13X APG Molecular Sieve, and Desiccant Drying Molecular Sieve

Water Treatment Chemicals 13X APG Molecular Sieve, and Desiccant Drying Molecular Sieve

US $ 2,000-3,000 / Ton FOB
1 Ton (MOQ)
More
Transport Machine : Ordinary Goods Truck
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Synrise Industries (Dalian) Co., Ltd.

Manufacturer/Factory

Liaoning, China Since 2023
Chat Now Send Inquiry
Competitive Price Bulk Shipment for Sewage Water Treatment Cross Linked Polyacrylamide Chemicals

Competitive Price Bulk Shipment for Sewage Water Treatment Cross Linked Polyacrylamide Chemicals

US $ 1,000-2,500 / Ton FOB
1 Ton (MOQ)
More
Main Products: Polyacrylamide, Anionic Polyacrylamide, Cationic Polyacrylamide, Nonionic Polyacrylamide, Water Treatment Chemicals, Flocculant, PAM, Dac, Acrylamide, Polyacrylamide Flocculant
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Anhui Jucheng Fine Chemicals Co., Ltd.

Manufacturer/Factory

Anhui, China Since 2021
Chat Now Send Inquiry
Synthetic Material Carbohydrazide Oxygen Scavenging Boiler Water Treatment Chemical Carbohydrazide CAS 497-18-7

Synthetic Material Carbohydrazide Oxygen Scavenging Boiler Water Treatment Chemical Carbohydrazide CAS 497-18-7

US $ 10-55 / kilograms FOB
1 kilograms (MOQ)
More
Grade Standard : Industrial Grade
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shandong Yinglang Chemical Co., Ltd

Manufacturer/Factory

Shandong, China Since 2023
Chat Now Send Inquiry
Jinfeng Competitive Price Lro-a 2t/H Customized PVC First Stage Water Treatment System Machine Chemical Cosmetic Processing Water Using

Jinfeng Competitive Price Lro-a 2t/H Customized PVC First Stage Water Treatment System Machine Chemical Cosmetic Processing Water Using

US $ 4,700-4,800 / Piece FOB
1 Piece (MOQ)
More
Main Products: Vacuum Emulsifying Machine, Liquid Washing Homogenizer Mixer, Water Treatment Machine, Filling Machines, Capping Machine, Perfume Machine
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Guangzhou Jinfeng Light Industry Machinery Equipment Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2022
Chat Now Send Inquiry
Ammonium Chloride Raw Material Chemicals Water Treatment Chemicals

Ammonium Chloride Raw Material Chemicals Water Treatment Chemicals

US $ 70-90 / Ton FOB
100 Tons (MOQ)
More
Type : Amide Nitrogen Fertilizer
Contact Supplier
Audited Supplier Audited Supplier Since 2016
Anhui Runquan Trading Co., Ltd.

Manufacturer/Factory,Trading Company

Anhui, China Since 2016
Chat Now Send Inquiry
International NSF Certified Ferric Sulphate Water Treatment Chemical for Breed

International NSF Certified Ferric Sulphate Water Treatment Chemical for Breed

US $ 280-320 / Ton FOB
20 Tons (MOQ)
More
Main Products: Ferric Sulphate, Ferrous Sulphate
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Hunan Yide Chemical Co., Ltd.

Manufacturer/Factory

Hunan, China Since 2019
Chat Now Send Inquiry
Sinobio Benzalkonium Chloride Bkc 50% 80% Water Treatment Chemicals Bkc

Sinobio Benzalkonium Chloride Bkc 50% 80% Water Treatment Chemicals Bkc

US $ 1-2 / Piece FOB
1 Piece (MOQ)
More
Function : Keeping Health and Promoting Growth
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Dalian Sinobio Chemistry Co., Ltd.

Manufacturer/Factory

Liaoning, China Since 2021
Chat Now Send Inquiry
Water Treatment Disinfect Effervescent Tablet Water Bowl Trough Pvc Float
View More

Related Searches

Chemical Polymer Water Treatment Sand Textile Water Treatment Waste Water Treatment Chemical Water Treatment Salt Flocculant Chemical Polyacrylamide Industry Waste Water Treatment Water Treatment

Browse by Categories

Home > Chemicals > Chemical Auxiliary & Catalyst > Chemical Auxiliary
1/834
TOP

Search Filter

Categories

More Less
  • Chemical Auxiliary
  • Water Treatment Chemical
  • Organic Intermediate
  • Chemical Reagent
  • Coal Active Carbon
  • Coconut Shell Activated Carbon
  • Sulfate
  • Chloride
  • Granular Activated Carbon
  • Polymer & Resin

Acid-Base Property

More Less
  • Acidic Surface Disposal Agent
  • Neutral Surface Disposal Agent
  • Alkaline Surface Disposal Agent

Appearance

More Less
  • Powder
  • Granulars
  • Liquid

Color

More Less
  • White
  • Yellow
  • Black
  • Green

Environmental Protection

More Less
  • Yes
  • No

Type

More Less
  • Industrial Circulating Water Treatment Agent
  • Sewage Treatment Chemicals
  • Oil / Water Separation Agent

Company Type

More Less
  • Manufacturer/Factory
  • Trading Company
  • Group Corporation
  • Individuals/SOHO
  • Other

Company Location

More Less
  • Shandong
  • Jiangsu
  • Guangdong
  • Hebei
  • Henan
  • Zhejiang
  • Shanghai
  • Hunan
  • Anhui
  • Shanxi
  • Tianjin
  • Beijing
  • Ningxia
  • Jiangxi
  • Hubei
  • Fujian
  • Liaoning
  • Shaanxi
  • Inner Mongolia
  • Sichuan
  • Hainan
  • Heilongjiang
  • Yunnan
  • Guangxi
  • Chongqing
  • Xinjiang
  • Jilin
  • Gansu
Reset Done