Diethyl Hydroxyl Amine DEHA

← Back to all products
Diethyl Hydroxyl Amine N,N- DEHA
Request a Quote Email usvizagchemical @ gmail.com DocumentsRequest MSDS / TDS
Boiler Chemicals-42

Diethyl Hydroxyl Amine DEHA

SKU: RXSOL-40-5029-210
DEHA oxygen scavengers useful in Boiler feedwater and steam-condensate systems
Enquire About This Product →

Technical Specifications

Physical Properties

Empirical Formula   C4H11NO
Molecular Wt   89.1
  DEHA 98% DEHA 85%
Sp. Gr. at 20°C  0.855 - 0.875 0.895 - 0.905
Refractive Index 1.418 - 1.420 1.418 - 1.420
Boiling Point 124 to 126°C 94 to 96°C
Freezing Point -25 to -27°C Below 0°C
Flash Point (Closed C) Below 45°C 45 to 47°C
Solubility in water Soluble Soluble
pH 10.2 10

 Specification :

Specification DEHA 98% DEHA 85%
Purity as DEHA (wt. %) 98.00 min.   85.00 min.
Water Content (% by wt.)   -- 15.00 max
Ethylamines (% by wt.) 0.5 max. 0.05 max.

 

Typical Technical Specifications

Parameter

Typical Value

Appearance

Clear, colourless to pale yellow liquid

Chemical Name

N,N-Diethylhydroxylamine

CAS Number

3710-84-7

Molecular Formula

C₄H₁₁NO

Active Concentration

85% DEHA or formulated aqueous solutions

Molecular Weight

89.14 g/mol

Solubility

Miscible with water

Function

Oxygen scavenging and corrosion control

Application

Boiler feedwater and steam-condensate systems

These specifications are indicative. Commercial DEHA oxygen scavengers are available at different active concentrations, including diluted boiler-treatment formulations.

Application & Dosage

It is use for Water Treatment Chemical, Corrosion Inhibitor, Polymerization, Photographic Chemicals, Decolourisation, etc.

DEHA used as a volatile oxygen scavenger and reacts in a ratio of 2.8/1 DEHA/O2.

RXSOL Product DEHA

RXSOL DEHA Oxygen Scavenger 25%

DEHA-based liquid oxygen scavenger for boiler feedwater treatment, dissolved oxygen control, metal passivation and steam-condensate corrosion protection.

DEHA Oxygen Scavenger, Diethylhydroxylamine Water Treatment, Boiler Oxygen Scavenger, DEHA 25% Solution, Volatile Oxygen Scavenger, Boiler Feedwater Corrosion Inhibitor, DEHA Chemical Supplier India UAE Oman.

Recommended Dosage

Parameter

Typical Starting Guidance

Theoretical DEHA requirement

1.24 ppm per 1 ppm O₂

Practical active DEHA dosage

2–3 ppm per 1 ppm O₂

DEHA residual target

Often 0.5–1.0 ppm, program-dependent

Recommended injection point

Deaerator storage section or feedwater line

Dosage control

Dissolved oxygen and DEHA residual testing

 

Application Area of DEHA :  

Water Treatment , Polymerization, Photographic Chemicals, Decolourisation , Inhibitors, Silicon Rubber
 

Example Dosage Calculation

For boiler feedwater containing 0.1 ppm dissolved oxygen:

  • Feedwater volume: 10,000 litres

  • Dissolved oxygen: 0.1 mg/L

  • Practical starting dosage: 3 mg active DEHA per mg O₂

  • Required active DEHA: 3 grams

  • Required 25% DEHA solution: 12 grams

This is an illustrative oxygen-demand calculation, excluding any additional requirement for maintaining the specified DEHA residual.

Related Information

One important formulation question: Are you planning to manufacture DEHA 25% solution, DEHA 85%

HOW TO MANUFACTURE 25% DEHA SOLUTION?

Manufacturing Formulation – DEHA 25% Solution

For manufacturing a 100 kg batch of a simple aqueous DEHA oxygen scavenger:

Raw Material

Quantity

DEHA 85%

29.41 kg

Demineralized Water

70.59 kg

Total

100.00 kg

Manufacturing Procedure

  1. Charge approximately 60 kg demineralized water into a clean, compatible mixing vessel.

  2. Start gentle agitation.

  3. Slowly add 29.41 kg of DEHA 85% under controlled conditions.

  4. Add the remaining demineralized water to reach 100 kg total.

  5. Mix until the solution is homogeneous.

  6. Verify DEHA concentration using a validated analytical method.

  7. Pack in compatible, tightly sealed containers.

Use suitable ventilation, protective equipment and temperature control. Confirm the current DEHA SDS before manufacturing.

 

This is an uncatalyzed 25% active DEHA solution, not a validated proprietary boiler-treatment formulation.

Similarly follow the above step for 50% and 85% DEHA.

Storage : 
Can be stored and handled in equipment made of stainless steel of Type SS304 or SS316 or steel lined with glass, polypropylene or polyethylene. Storage in mild steel equipment or containers is not recommended. DEHA drums should be stored in a cool and well ventillated area, away from sources of ignition.

Packing : 

25 Ltrs, 210 Ltrs. in new UN approved HMHDPE drums / In ISO Tanks of 20 Mt's capacity.

Health & Safety :

DEHA is irritating to skin,eyes and the mucous membrane. In case of contact,affected area to be washed with plenty of water for atleast 15 minutes. In case of inhalation,victim should be moved to fresh air and oxygen should be administered. In case of ingestion,victim should be made to consume copious quantity of milk and water. Medical advice should be sought at once. Personal protective equipment should always be used while handling.