Product Name

Appearance

Moisure(%)

Assay(%)

m.p

Chloride(ppm)

Sulfates (ppm)

Heavy Metals

(Pb,ppm)

Fumaric Acid (%)

Fineness

Referenced

Standard

工業(yè)級

white crystals

< 0.5

> 99.0

183.0-187.0℃

< 70

< 400

< 20

< 1.0

---

HG 3-1102-97

聚合級

white crystals

< 0.2

> 99.5

185.0-187.0℃

< 70

< 200

< 20

< 0.5

---

---

試劑級

white crystals

< 0.3

> 99.8

185.0-185.8℃

< 30

< 50

< 20

< 0.2

---

HG 3-1102-97

醫(yī)藥級

white crystals

< 0.3

> 99.9

185.0-185.8℃

< 30

< 50

< 10

< 0.2

---

Merck Index

日化級

white powder

< 0.3

> 99.9

185.0-185.8℃

< 30

< 50

< 10

< 0.2

30-40       mesh

---

食品級

white crystals

< 0.5

> 99.9

185.0-190.0℃

< 30

< 20

< 10

< 0.2

---

FCCIV

電子級

white crystals

< 0.3

> 100.1

185.0-185.8℃

< 30

< 20

< 5

< 0.1

--

ROHS