Ammonium thiosulfate CAS 7783-18-8

Product name:Ammonium thiosulfate
CAS：7783-18-8
MF：H8N2O3S2
MW：148.21
EINECS:231-982-0

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Model:
7783-18-8
Brand:
bosschem
Code:
7783-18-8

Product Description

Product Description

Product name:Ammonium thiosulfate

CAS：7783-18-8

MF：H8N2O3S2

MW：148.21

EINECS:231-982-0

Use:

Used as analytical reagents, photographic fixatives and reducing agents; this product is used in semiconductor components, synthesis of organic boron compounds, plasticizers, and welding fluxes.

Specifications :

Ammonium thiosulfate Basic information
Product Name:	Ammonium thiosulfate
CAS:	7783-18-8
MF:	H8N2O3S2
MW:	148.21
EINECS:	231-982-0
Mol File:	7783-18-8.mol
Ammonium thiosulfate Chemical Properties
Melting point	180°C (dec.)
density	1.679 g/mL at 25 °C(lit.)
solubility	H2O: very soluble(lit.)
form	Crystalline Powder
color	White
Odor	Ammonical odour
Water Solubility	Soluble in water, slightly soluble in acetone. Insoluble in ethanol and diethyl ether.
Sensitive	Hygroscopic
Merck	14,562
Stability:	Stable. Hygroscopic.

Item	Liquid	Solid
Appearance	colorless transparent Liquid	white crystal
Assay	58-60%	≥98%
Ammonium sulfite	≤1.0%	≤1.0%
Alkalinity	0.3-1.5%	≤0.4%
Fe	≤0.00025%	≤0.001%
Insoluble matter ( precipitation of Ca and Mg)	≤0.2%	----
Heavy metals(as Pb)	≤0.001%	≤0.002%
Sulfide(as s)	≤0.0002%	≤0.0002%
Ignition residual	≤0.1%	≤0.2%
Specific gravity	1.310-1.335	----
7. Packing: Liquid 250kg plastic drum. Solid 25KG plastic woven bag.

公司信息

Ammonium thiosulfate CAS 7783-18-8 H8N2O3S2

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.