Sulfamic acid 99+%, pure

What is Sulfamic Acid?

Sulfamic acid is a colorless crystalline substance which, analogous to sulfamide - the diamide of sulfuric acid - can be understood as the monoamide of sulfuric acid. The salts of amidosulfonic acid are called amidosulfonates or sulfamates.

What is sulfamic acid used for

Sulfamic acid in concentrations of 10–15%, often 14%, is (usually in addition to phosphoric acid or citric acid) a component of descaling agents and sanitary cleaners, in the laboratory it is used as a basic substance and to destroy nitrite.

In electroplating, sulfamic acid is used to adjust the pH value of nickel sulfamate baths to pH 3.9 to 4.2. A solution of amidosulfonic acid with sodium lauryl sulfate at 35 to 40 °C is also used to activate a nickel layer.

Sodium Cyclamate, an artificial sweetener, is produced by reacting sulfamic acid with cyclohexylamine.

Ammonium sulfamate is an important flame retardant.

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Technical information

Amido sulphuric acid, Amino sulfonic acid, Amido sulphonic acid
Empirical formula H3NO3S
Molar mass (M) 97,09 g/mol
Density (D) 2,126 g/cm³
Melting point (mp) 205 °C
ADR 8 III
WGK 1
CAS No. 5329-14-6
EG-Nr. 226-218-8
UN-Nr. 2967

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Hazard statements

H315 Causes skin irritation.
H319 Causes serious eye irritation.
H412 Harmful to aquatic life with long lasting effects.

Precautions - prevention

P280 Wear protective gloves / protective clothing / eye protection / face protection.

Precautions - response

P302 + P352 IF ON SKIN: Wash with plenty of water.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for a long period of time
amount of minutes; remove contact lenses, if possible; keep rinsing.
P337 + P313 If eye irritation persists: Get medical advice / attention