CAS No.: 15217-42-2
MF: C6H4N3Na
Place of Origin: China
Purity: 39.5%-41.0%
Application: water treatment chemicals
Molecular Formula: C6H4N3Na
Chlorinity: 50ppm max
Density(20C): 1.152-1.192g/ml
COA: Available
MOA: Available
Other Names: 1H-Benzotriazole sodium salt
EINECS No.: 239-269-6
Type: Pharmaceutical Intermediates,etc
Brand Name: LOOK
Appearance: clear light yellow liquid
Molecular Weight: 141.11
NaOH: 0.5%max
PH(10%solution/25C) 11.2-11.7
MSDS: Available
Certificate: ISO9001:2008


Guide name Guide
Appearance Clear light yellow liquid
Content ≥40%
Chlorine content ≤100(ppm)
Sodium hydroxide (NaOH) ≤0.5%
Density 1.13-1.19 g/ml(24℃)
PH value 11.2-11.8


1.BTA-S adsorbed on metal surface to form a thin film to protect copper ,brass ,brozone from being corroded by atmosphere and harmful medium ,it could prevent copper ion to transfer if put some BTA-S in cold water ,the transformation of copper ion could expedite the corrosion of iron and alluminum, in the heat transfer medium medium, copper ions can cause pitting corrosion of aluminum.

2.It could prevent serious corrosion of thylene glycol catalytic oxidation acid from copper ion if putting some BTA-S to recycling water, so it widely used in in the solar energy conversion system,reactor of nuclear power plant, the boiler of power plant, cooling system of automobile engine and engine cooling system,

3.BTA-S could work with other corrosion inhibitor which has a synergistic effect to increase the effect of corrosion inhibition..

Product service

1. Certificate Of Analysis (COA)

2. Material Safety Data Sheet (MSDS)

3. Route of synthesis (ROS)

4. Method of Aanlysis (MOA)

5. Nuclear Magnetic Resonance (NMR)

6. Packing pictures and loading video before loading

7. Free Sample

8. Factory audit


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.

After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Q1: Do you accept sample order?
A:  We will make samples before mass production, and after sample approved, we'll begin mass production. Doing 100% inspection during production, then do random inspection before packing.
Q2:  What is our advantage?
A : The series of natural extracted product are all self-developed, produced and tested. Mature production technology, strict cost control, and perfect quality assurance system, ensure the product stability and competitive price.
Q3: What’s your MOQ?
A :  Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q4: Do you supply product report?
A : Yes. We'll give you product analysis report before shipping.
 Q5: Is there a discount?
A :  Different quantity has different discount.
Q6: Can we visit your factory?
A :  Yes. Welcome to visit.
Q7: How to confirm the Product Quality before placing orders?
A :  You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.


Storage for six months in shady room and dry place.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.


200L plastic drum, IBC(1000L), customers' requirement.

Delivery detail

   [Delivery] 5 working days after payment.


Packaging and shipping

Honor Certificate

Professional team