Molecule

570 °C (anhydrous)
100 °C, decomp (tetrahydrate)

570 °C(lit.)

570°C

soluble in ammonia
very slightly soluble in ethanol, acetone
insoluble in nitric acid

anhydrous:
71 g/100 mL (18 °C)
66 g/100 mL (20 °C)

---

tetrahydrate:
60.43 g/100 mL (0 °C)
206.5 g/100 mL (100 °C) in water

Freely soluble in water. Slightly soluble in alcohol and acetone

white granular solid

crystals and lumps

Powder, Packaged under argon

Crystalline

Granular

Crystalline, Packaged under argon

2.986 g/cm³ (anhydrous)
2.20 g/cm³ (tetrahydrate)

2.990

Non-flammable

645 °C, decomp

5.0-7.0 (25 °C, 50 mg/mL in H2O)

5.0-7.0 (25 °C, 5%)

5-7 (20 °C, 5%)

Not listed

Irritant

2750 mg/kg (rat, oral)

P220-P261-P305+P351+P338

P221-P210-P305+P351+P338-P302+P352-P405-P501A

UN 1507 5.1/PG 3

Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges

dust mask type N95 (US), Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges

Warning

Harmful (Xn)

3

III

WK9800000

5.1

2

H272-H302-H315-H319-H335

17-26-36/37-60

1507

UN1507

8-22-36/37/38

是

Hygroscopic

99.995% trace metals basis

≥99.0% (KT)

≥99.0%

≥98%

≥99.0% (complexometric)

≥98.0%

99.9965% (metals basis)

99.0% min

99.97% (metals basis)

98%

99.999% (metals basis)

Sr(NO3)2

chloride (Cl-): ≤10 mg/kg

sulfate (SO42-): ≤50 mg/kg

chloride (Cl-): ≤0.002%

sulfate (SO42-): ≤0.005%

chloride (Cl-): ≤50 mg/kg

Cd: ≤5 mg/kg

Mn: ≤5 mg/kg

Ni: ≤5 mg/kg

Na: ≤50 mg/kg

Cr: ≤5 mg/kg

Cu: ≤2 mg/kg

Mg: ≤5 mg/kg

NH4+: ≤50 mg/kg

Pb: ≤5 mg/kg

≤0.1% loss on drying, 105 °C

≤0.1% loss on drying

≤0.5% loss on drying, 105 °C

≤0.1% loss on drying, 105 °C (4h)

ACS reagent

puriss. p.a.

puriss.

JIS special grade

≤0.01% insolubles

≤0.001% heavy metals (as Pb)

≤0.0005% heavy metals (as Pb)

≤0.005% ammonium (NH4)

≤0.01% in water insoluble matters(10% solution)

≤0.15% Mg and alkali salts